10-Q

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2013.

OR

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM              TO             .

Commission File Number   0-18592

MERIT MEDICAL SYSTEMS, INC.

(Exact name of Registrant as specified in its charter)

Utah	87-0447695
(State or other jurisdiction of incorporation or organization)	(I.R.S. Identification No.)

1600 West Merit Parkway, South Jordan, UT, 84095

(Address of Principal Executive Offices, including Zip Code)

(801) 253-1600

(Registrant’s telephone number, including area code)

Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  ý  No  o

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).  Yes  ý  No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. 

Large Accelerated Filer x	Accelerated Filer o
Non-Accelerated Filer o	Smaller Reporting Company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  o  No  ý

Indicate the number of shares outstanding of each of the Registrant’s classes of common stock, as of the latest practicable date.

Common Stock	42,746,098
Title or class	Number of Shares Outstanding at November 5, 2013

TABLE OF CONTENTS

PART I.		FINANCIAL INFORMATION
	Item 1.	Financial Statements (Unaudited)	1
		Consolidated Balance Sheets as of September 30, 2013 and December 31, 2012	1
		Consolidated Statements of Income for the three and nine months ended September 30, 2013 and 2012	3
		Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2013 and 2012	4
		Consolidated Statements of Cash Flows for the nine months ended September 30, 2013 and 2012	5
		Condensed Notes to Consolidated Financial Statements	6
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	16
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	24
	Item 4.	Controls and Procedures	26
PART II.		OTHER INFORMATION	26
	Item 1. Legal Proceedings		26
	Item 1A. Risk Factors		26
	Item 6. Exhibits		27
	SIGNATURES		28

PART I - FINANCIAL STATEMENTS

ITEM 1. FINANCIAL STATEMENTS 

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS SEPTEMBER 30, 2013 AND DECEMBER 31, 2012 (In thousands)
	September 30, 2013			December 31, 2012
	(unaudited)
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	9,115		$	9,719
Trade receivables — net of allowance for uncollectible accounts — 2013 — $779 and 2012 — $892	57,279			53,402
Employee receivables	249			169
Other receivables	2,502			2,672
Inventories	81,057			84,599
Prepaid expenses	4,922			4,133
Prepaid income taxes	1,266			1,250
Deferred income tax assets	4,989			4,976
Income tax refund receivable	1,102			1,076
Total current assets	162,481			161,996
PROPERTY AND EQUIPMENT:
Land and land improvements	17,989			17,346
Buildings	126,340			81,223
Manufacturing equipment	136,013			117,601
Furniture and fixtures	32,154			26,307
Leasehold improvements	14,184			13,236
Construction-in-progress	43,276			74,643
Total property and equipment	369,956			330,356
Less accumulated depreciation	(107,993		)	(95,553		)
Property and equipment — net	261,963			234,803
OTHER ASSETS:
Intangible assets:
Developed technology — net of accumulated amortization — 2013 —$14,970and 2012 — $8,146	73,887			87,332
Other — net of accumulated amortization — 2013 — $17,652 and 2012 — $14,034	27,918			30,799
Goodwill	175,489			175,108
Deferred income tax assets	4,237			4,237
Other assets	12,208			11,034
Total other assets	293,739			308,510
TOTAL	$	718,183		$	705,309
See condensed notes to consolidated financial statements.				(Continued)

1

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS SEPTEMBER 30, 2013 AND DECEMBER 31, 2012 (In thousands)
	September 30, 2013		December 31, 2012
	(unaudited)
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Trade payables	$	23,637	$	34,637
Accrued expenses	27,308		27,269
Current portion of long-term debt	10,000		10,000
Advances from employees	729		551
Income taxes payable	1,871		547
Total current liabilities	63,545		73,004
LONG-TERM DEBT	241,157		227,566
DEFERRED INCOME TAX LIABILITIES	2,436		2,373
LIABILITIES RELATED TO UNRECOGNIZED TAX BENEFITS	2,035		2,938
DEFERRED COMPENSATION PAYABLE	6,821		5,956
DEFERRED CREDITS	3,107		2,980
OTHER LONG-TERM OBLIGATIONS	3,456		8,915
Total liabilities	322,557		323,732
COMMITMENTS AND CONTINGENCIES (Notes 5, 9, 10 and 13)
STOCKHOLDERS’ EQUITY:
Preferred stock — 5,000 shares authorized as of September 30, 2013 and December 31, 2012; no shares issued	—		—
Common stock — no par value; 100,000 shares authorized; 42,612 and 42,489 shares issued at September 30, 2013 and December 31, 2012, respectively	174,551		172,341
Retained earnings	220,448		210,418
Accumulated other comprehensive income (loss)	627		(1,182		)
Total stockholders’ equity	395,626		381,577
TOTAL	$	718,183	$	705,309
See condensed notes to consolidated financial statements.			(Concluded)

2

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2013 AND 2012 (In thousands, except per common share amounts - unaudited)
	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2013			2012			2013			2012
NET SALES	$	115,210		$	95,907		$	329,033		$	292,057
COST OF SALES	64,180			50,572			188,025			155,528
GROSS PROFIT	51,030			45,335			141,008			136,529
OPERATING EXPENSES:
Selling, general, and administrative	31,350			28,880			95,002			88,638
Research and development	7,308			7,098			25,064			20,130
Intangible assets impairment charges	8,089			—			8,089			—
Contingent consideration benefit	(4,108		)	—			(4,075		)	—
Acquired in-process research and development	—			275			—			2,450
Total operating expenses	42,639			36,253			124,080			111,218
INCOME FROM OPERATIONS	8,391			9,082			16,928			25,311
OTHER INCOME (EXPENSE):
Interest income	69			57			200			176
Interest expense	(1,916		)	(128		)	(5,297		)	(352		)
Other income (expense)	(104		)	26			(174		)	633
Other income (expense) — net	(1,951		)	(45		)	(5,271		)	457
INCOME BEFORE INCOME TAXES	6,440			9,037			11,657			25,768
INCOME TAX EXPENSE	833			1,811			1,627			6,699
NET INCOME	$	5,607		$	7,226		$	10,030		$	19,069
EARNINGS PER COMMON SHARE:
Basic	$	0.13		$	0.17		$	0.24		$	0.45
Diluted	$	0.13		$	0.17		$	0.23		$	0.45
AVERAGE COMMON SHARES:
Basic	42,596			42,202			42,560			42,087
Diluted	42,872			42,692			42,793			42,536

See condensed notes to consolidated financial statements.

3

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2013 AND 2012

(In thousands - unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2013			2012			2013		2012
Net income	$	5,607		$	7,226		$	10,030	$	19,069
Other comprehensive income (loss):
Unrealized gain on marketable securities —
Unrealized holding gain arising during the period, net of tax of $0 and $2 for the three months and $0 and $214 for the nine months ended September 30, 2013 and 2012, respectively	—			(3		)	—		336
Less: reclassification adjustment for gains included in net income, net of tax of $0 and $328 for the three months and $0 and $63 for the nine months ended September 30, 2013 and 2012, respectively	—			(98		)	—		(516		)
Interest rate swap, net of tax of $281 and $0 for the three months and $985 and $0 for the nine months ended September 30, 2013 and 2012, respectively	(441		)	—			1,548		—
Foreign currency translation adjustment, net of tax of $8 and $21 for the three months and $16 and $8 for the nine months ended September 30, 2013 and 2012, respectively	334			(206		)	261		(154		)
Total other comprehensive income (loss)	(107		)	(307		)	1,809		(334		)
Total comprehensive income	$	5,500		$	6,919		$	11,839	$	18,735

See condensed notes to consolidated financial statements.

4

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2013 AND 2012 (In thousands - unaudited)
	2013			2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	10,030		$	19,069
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23,926			16,724
Loss (gain) on sales and/or abandonment of property and equipment	102			(1		)
Write-off of patents and intangible assets	8,169			27
Acquired in-process research and development	—			2,450
Amortization of deferred credits	(97		)	(140		)
Amortization of long-term debt issuance costs	598			—
Realized gain on sale of marketable securities	—			(745		)
Deferred income taxes	(13		)	14
Excess tax benefits from stock-based compensation	(145		)	(716		)
Stock-based compensation expense	1,072			1,454
Changes in operating assets and liabilities, net of effects from acquisitions:
Trade receivables	(3,700		)	(7,521		)
Employee receivables	(78		)	(78		)
Other receivables	(435		)	(490		)
Inventories	3,161			(8,884		)
Prepaid expenses	(702		)	(598		)
Prepaid income taxes	(17		)	2
Income tax refund receivable	527			259
Other assets	(923		)	(869		)
Trade payables	(4,078		)	5,805
Accrued expenses	(149		)	2,793
Advances from employees	164			408
Income taxes payable	(138		)	2,670
Liabilities related to unrecognized tax benefits	(903		)	(993		)
Deferred compensation payable	865			838
Other long-term obligations	(3,612		)	684
Total adjustments	23,594			13,093
Net cash provided by operating activities	33,624			32,162
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures for:
Property and equipment	(48,035		)	(49,264		)
Patents and trademarks	(1,143		)	(1,059		)
Proceeds from the sale of marketable securities	—			3,248
Proceeds from the sale of property and equipment	72			9
Cash paid in acquisitions	(1,000		)	(23,555		)
Net cash used in investing activities	(50,106		)	(70,621		)
See condensed notes to consolidated financial statements.				(Continued)

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2013 AND 2012 (In thousands - unaudited)
	2013			2012
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	$	1,159		$	3,326
Borrowings under long-term debt	110,225			127,914
Payments on long-term debt	(96,634		)	(94,151		)
Excess tax benefits from stock-based compensation	145			716
Proceeds from industrial assistant grants	900			324
Contingent payments related to acquisitions	(60		)	(36		)
Payment of taxes related to an exchange of common stock	(21		)	(287		)
Net cash provided by financing activities	15,714			37,806
EFFECT OF EXCHANGE RATES ON CASH	164			(10		)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(604		)	(663		)
CASH AND CASH EQUIVALENTS:
Beginning of period	9,719			10,128
End of period	$	9,115		$	9,465
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for:
Interest (net of capitalized interest of $797 and $289, respectively)	$	5,381		$	238
Income taxes	$	2,024		$	4,629
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment purchases in accounts payable	$	5,340		$	7,429
Acquisition purchases in accrued expenses and other long-term obligations	$	—		$	5,000
Acquisition of customer list in exchange for a settlement of trade receivables	$	—		$	378
Merit common stock surrendered (45 and 71 shares, respectively) in exchange for exercise of stock options	$	452		$	1,032
See condensed notes to consolidated financial statements.				(Concluded)

5

MERIT MEDICAL SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Basis of Presentation. The interim consolidated financial statements of Merit Medical Systems, Inc. ("Merit," "we" or "us") for the three and nine months ended September 30, 2013 and 2012 are not audited. Our consolidated financial statements are prepared in accordance with the requirements for unaudited interim periods, and consequently, do not include all disclosures required to be made in conformity with accounting principles generally accepted in the United States of America. In the opinion of management, the accompanying consolidated financial statements contain all adjustments, consisting of normal recurring accruals, necessary for a fair presentation of our financial position as of September 30, 2013, and our results of operations and cash flows for the three and nine-month periods ended September 30, 2013 and 2012. The results of operations for the three and nine-month periods ended September 30, 2013 are not necessarily indicative of the results for a full-year period. These interim consolidated financial statements should be read in conjunction with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Commission (the "SEC").

2. Inventories. Inventories are stated at the lower of cost or market. Inventories at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Finished goods	$	37,196	$	48,233
Work-in-process	9,782		6,051
Raw materials	34,079		30,315
Total	$	81,057	$	84,599

3. Stock-based Compensation. Stock-based compensation expense before income taxes for the three and nine-month periods ended September 30, 2013 and 2012 consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of goods sold	$	18	$	49	$	98	$	190
Research and development	20		26		69		93
Selling, general, and administrative	251		354		905		1,171
Stock-based compensation expense before income taxes	$	289	$	429	$	1,072	$	1,454

As of September 30, 2013, the total remaining unrecognized compensation cost related to non-vested stock options, net of expected forfeitures, was approximately $4.7 million and is expected to be recognized over a weighted-average period of 3.5 years.

During the three and nine-month periods ended September 30, 2013, we granted awards representing 172,500 and 347,500 shares, respectively, of our common stock. During the three and nine-month periods ended September 30, 2012, we granted awards representing 7,500 and 127,500 shares of common stock, respectively. We use the Black-Scholes methodology to value stock-based compensation expense for options. In applying the Black-Scholes methodology to our outstanding option grants, we used the following assumptions:

	Nine Months Ended
	September 30,
	2013	2012
Risk-free interest rate	0.65% - 1.16%	0.54% - 0.95%
Expected option life	4.2 - 6.0 years	4.2 - 6.0 years
Expected dividend yield	—	—
Expected price volatility	34.08% - 41.67%	42.01% - 44.56%

6

For purposes of the foregoing analysis, the average risk-free interest rate is determined using the U.S. Treasury rate in effect as of the date of grant, based on the expected term of the stock option. The expected term of the stock options is determined using the historical exercise behavior of employees. The expected price volatility is determined using a weighted average of daily historical volatility of our stock price over the corresponding expected option life and implied volatility based on recent trends of the daily historical volatility. For options with a vesting period, compensation expense is recognized on a straight-line basis over the service period, which corresponds to the vesting period.

4. Earnings Per Common Share (EPS). The computation of weighted-average shares outstanding and the basic and diluted earnings per common share for the following periods consisted of the following (in thousands, except per share amounts):

	Three Months					Nine Months
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Period ended September 30, 2013
Basic EPS	$	5,607	42,596	$	0.13	$	10,030	42,560	$	0.24
Effect of dilutive stock options and warrants			276					233
Diluted EPS	$	5,607	42,872	$	0.13	$	10,030	42,793	$	0.23
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,857					2,125
Period ended September 30, 2012
Basic EPS	$	7,226	42,202	$	0.17	$	19,069	42,087	$	0.45
Effect of dilutive stock options and warrants			490					449
Diluted EPS	$	7,226	42,692	$	0.17	$	19,069	42,536	$	0.45
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,542					1,608

5. Acquisitions. On December 19, 2012, we consummated the transactions contemplated by a Stock Purchase Agreement with Vital Signs, Inc., an affiliate of GE Healthcare (“Vital Signs”), as seller, and purchased all of the issued and outstanding shares of Thomas Medical Products, Inc. (“Thomas Medical”), a Pennsylvania corporation. At the time we completed the acquisition, the primary assets of Thomas Medical were patents, trademarks, other intellectual property and business assets related to introducers, hemostatic valves and sheaths. Using the Thomas Medical splittable hemostatic introducer sheath as an entry product, we intend to develop a portfolio of premium accessories for electrophysiology physicians. We accounted for the acquisition as a business combination. We made an initial payment of $167.0 million to Vital Signs in December 2012. We also accrued an additional $445,000 at December 31, 2012, reflecting the final payment made to Vital Signs in February 2013 for net working capital received in excess of the target net working capital specified. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. Our consolidated financial statements for the year ended December 31, 2012 include approximately $1.9 millionand $51,000 of net sales and income before tax, respectively, related to the operations of Thomas Medical. The total purchase price was preliminarily allocated as follows (in thousands):

7

Assets Acquired
Trade receivables	$	6,507
Inventories	5,078
Prepaid expenses	340
Property and equipment	2,685
Intangibles
Developed technology	43,000
Non-compete agreements	500
Customer lists	5,000
Trademarks	1,400
Goodwill	102,788
Total assets acquired	167,298
Liabilities Assumed
Trade payables	588
Accrued expenses	1,094
Total liabilities assumed	1,682
Net assets acquired, net of cash acquired of $1,829	$	165,616

During the nine months ended September 30, 2013, the goodwill related to the Thomas Medical acquisition was increased by approximately $381,000 due to an adjustment related to inventory. The preliminary allocation is subject to adjustment as we continue to evaluate new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement amounts recognized as of the acquisition date.

The gross amount of trade receivables we acquired in the Thomas Medical transaction was approximately $6.5 million, of which $34,000 was expected, at the acquisition date, to be uncollectible. With respect to the Thomas Medical assets, we intend to amortize developed technology over eight years, customer lists on an accelerated basis over 12 years, and non-compete agreements over three years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademarks for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 8.55 years.

In connection with our Thomas Medical acquisition, we paid approximately $3.7 million in long-term debt issuance costs to Wells Fargo Bank related to our Credit Agreement (see Note 9). These costs consisted primarily of loan origination fees and related legal costs that we intend to amortize over five years, which is the contract term of our Credit Agreement. We also incurred approximately $32,000 and $526,000 of acquisition-related costs during the three and nine months ended September 30, 2013, respectively, and $2.7 million for the year ended December 31, 2012, which are included in selling, general and administrative expenses in the accompanying consolidated statements of operations.

On November 19, 2012, we entered into an Asset Purchase Agreement with Janin Group, Inc. (dba MediGroup) ("MediGroup"), an Illinois corporation, to purchase substantially all of the assets of MediGroup. The primary assets of MediGroup are the patented Flex-Neck® Peritoneal Dialysis Catheters and Y-TEC™ Peritoneal Dialysis Implantation Kits. We accounted for this acquisition as a business combination. We made an initial payment to MediGroup of approximately $4.0 million in November 2012. In addition, we are obligated to make contingent payments of up to $150,000 per year during 2013, 2014 and 2015. Furthermore, we are obligated to make contingent purchase price payments of $150,000 per year in 2016 through 2022 if net sales of Medigroup products increase at least 8% in each subsequent year. If net sales of MediGroup products have not increased by the percentage set forth in any year, our obligation to make these contingent payments shall cease. The acquisition-date fair value of the contingent consideration liability of approximately $403,000 has been included as part of the purchase consideration. Acquisition-related costs during the year ended December 31, 2012, which are included in selling, general, and administrative expenses in the consolidated statements of income included in our Annual Report on Form 10-K for the year ended December 31, 2012, filed with the SEC on March 1, 2013 (the "2012 Form 10-K"), were not material to our financial position. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. During the year ended December 31, 2012, our net sales of MediGroup products were approximately $169,000. It is not practical to separately report the earnings related to the MediGroup acquisition, as we cannot split out sales costs related to MediGroup products, principally because our sales representatives are selling multiple products (including MediGroup products) in the cardiovascular business segment. The total purchase price, which includes the contingent consideration liability described above, was preliminarily allocated as follows (in thousands):

8

Assets Acquired
Inventories	$	263
Property and equipment	79
Intangibles
Developed technology	2,000
Non-compete agreements	210
Customer lists	110
Trademarks	80
Goodwill	1,697
Total assets acquired	$	4,439

With respect to the MediGroup assets, we intend to amortize developed technology over eight years, customer lists on an accelerated basis over eight years, and non-compete agreements over seven years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademarks for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 8.15 years.

On January 31, 2012, we consummated the transactions contemplated by an Asset Purchase Agreement with Ostial Solutions, LLC ("Ostial"), a Michigan limited liability company, to purchase substantially all of the assets of Ostial. The primary asset of Ostial is the patented Ostial PRO Stent Positioning System, which is designed to facilitate precise stent implantation in coronary and renal aorto-ostial lesions. We accounted for this acquisition as a business combination. We made an initial payment of $10.0 million to Ostial in January 2012 and an additional payment of $6.5 million to Ostial in August 2012. In addition, we are obligated to make contingent purchase price payments of up to $13.5 million based on a percentage of future sales of products utilizing the Ostial PRO Stent Positioning System. The acquisition-date fair value of this contingent consideration liability of $4.3 million has been included as part of the purchase consideration and was determined using a discounted cash flow model based upon the expected timing and amount of these future contingent payments. Acquisition-related costs during the year ended December 31, 2012, which are included in selling, general, and administrative expenses in the consolidated statements of income included in our 2012 Form 10-K, were not material to our financial position. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. During the year ended December 31, 2012, our net sales of products utilizing the Ostial PRO Stent Positioning System were approximately $457,000. It is not practical to separately report the earnings related to the Ostial acquisition, as we cannot split out sales costs related to Ostial products, principally because our sales representatives are selling multiple products (including Ostial products) in the cardiovascular business segment. The total purchase price, which includes the contingent consideration liability described above, was allocated as follows (in thousands):

Assets Acquired
Intangibles
Developed technology	$	10,500
Customer lists	600
Trademark	110
Non-compete agreements	10
Goodwill	9,580
Total assets acquired	$	20,800

With respect to the Ostial assets, we intend to amortize developed technology over 15 years, customer lists on an accelerated basis over eight years, and non-compete agreements over five years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademark for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 14.6 years.

The following table summarizes our unaudited consolidated results of operations for the three and nine-month periods ended September 30, 2012, as well as unaudited pro forma consolidated results of operations as though the Thomas Medical and MediGroup acquisitions had occurred on January 1, 2012 (in thousands, except per common share amounts):

9

	Three Months Ended				Nine Months Ended
	September 30, 2012				September 30, 2012
	As Reported		Pro Forma		As Reported		Pro Forma
Net sales	$	95,907	$	106,600	$	292,057	$	320,843
Net income	7,226		8,707		19,069		22,007
Earnings per common share:
Basic	$	0.17	$	0.21	$	0.45	$	0.52
Diluted	$	0.17	$	0.20	$	0.45	$	0.52

The unaudited pro forma information set forth above is for informational purposes only and includes adjustments related to amortization expense related to acquired intangible assets and interest expense on long-term debt. The pro forma information should not be considered indicative of actual results that would have been achieved if Thomas Medical and the MediGroup assets had been acquired at the beginning of 2012 or results that may be obtained in any future period. The pro forma consolidated results of operations do not include the Ostial acquisition, as we do not deem the pro forma effect of that transaction to be material.

On December 15, 2011, we acquired the intellectual property rights to certain support guide catheter technology. We made an initial payment of $2.0 million in December 2011 and a payment of $1.0 million in May 2012 based on a certain obligation set forth in the acquisition agreement having been met. In January 2013, we made a payment of $1.0 million based on a milestone set forth in the acquisition agreement related to the clearance of the support guide catheter with the U.S. Food and Drug Administration under Section 510(k) of the U.S. Food Drug and Cosmetic Act.

The goodwill arising from the acquisitions discussed above consists largely of the synergies and economies of scale we hope to achieve from combining the acquired assets and operations with our historical operations (see Note 12). The goodwill recognized from these acquisitions is expected to be deductible for income tax purposes.

6. Segment Reporting. We report our operations in two operating segments: cardiovascular and endoscopy. Our cardiovascular segment consists of cardiology and radiology medical device products which assist in diagnosing and treating coronary artery disease, peripheral vascular disease and other non-vascular diseases, including our embolotherapeutic products. Our endoscopy segment consists of gastroenterology and pulmonary medical device products which assist in the palliative treatment of expanding esophageal, tracheobronchial and biliary strictures caused by malignant tumors. We evaluate the performance of our operating segments based on operating income (loss). Financial information relating to our reportable operating segments and reconciliations to the consolidated totals is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2013		2012			2013		2012
Revenues
Cardiovascular	$	110,859	$	92,106		$	316,566	$	280,336
Endoscopy	4,351		3,801			12,467		11,721
Total revenues	115,210		95,907			329,033		292,057
Operating income (loss)
Cardiovascular	7,753		9,169			16,031		26,005
Endoscopy	638		(87		)	897		(694		)
Total operating income	$	8,391	$	9,082		$	16,928	$	25,311

7. Recent Accounting Pronouncements. In March 2013, the Financial Accounting Standards Board (“FASB”) issued amendments to address the accounting for the cumulative translation adjustment when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a non-profit activity or a business within a foreign entity. The amendments are effective prospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2013 (early adoption is permitted). The adoption of this guidance is not expected to have a material effect on our consolidated financial position or results of operations.

In February 2013, the FASB issued amendments to disclosure requirements for presentation of comprehensive income. The standard requires presentation (either in a single note or parenthetically on the face of the financial statements) of the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income

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statement line items affected by the reclassification. If a component is not required to be reclassified to net income in its entirety, a cross reference to the related footnote for additional information is required. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. The adoption of this guidance did not have a material effect on our consolidated financial statements for the three and nine-month periods ended September 30, 2013.

In July 2012, the FASB issued authoritative guidance related to testing indefinite-lived intangible assets for impairment. This guidance simplifies how entities test indefinite-lived intangible assets for impairment and permits an entity to first assess qualitative factors to determine whether it is more likely than not that the indefinite-lived intangible asset is impaired. This guidance is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. The adoption of this guidance did not have a material effect on our consolidated financial statements for the three and nine-month periods ended September 30, 2013.

8. Income Taxes. Our overall effective tax rate for the three months ended September 30, 2013 was 12.9%, compared to 20.0% for the corresponding period of 2012. For the nine months ended September 30, 2013, our effective tax rate was 14.0%, compared to 26.0% for the corresponding period of 2012. The effective income tax rates for the three and nine-month periods ended September 30, 2013, when compared to the corresponding periods of 2012, were lower as a result of a higher mix of earnings from our foreign operations, which are taxed at lower rates than our U.S. operations, and the release of reserves for uncertain tax positions due to statute of limitation expirations. In addition, the effective tax rate for the nine months ended September 30, 2013 was lower than the corresponding prior-year period due to the reinstatement of the federal research and development credit for the 2012 tax year. The credit was reinstated by the American Taxpayer Relief Act of 2012, which was signed on January 2, 2013. We recognized the federal research and development credit as a discrete benefit in the first quarter of 2013, the period in which the reinstatement was enacted.

9. Long-Term Debt. We entered into an Amended and Restated Credit Agreement, dated as of December 19, 2012 (the “Credit Agreement”), with the lenders who are or may become party thereto (the "Lenders") and Wells Fargo Bank, National Association ("Wells Fargo"), as administrative agent for the Lenders. Pursuant to the terms of the Credit Agreement, the Lenders agreed to make revolving credit loans up to an aggregate amount of $175 million. The Lenders also made a term loan in the amount of $100 million, repayable in quarterly installments of $2.5 million until the maturity date of December 19, 2017, at which time the term loan and revolving credit loans, together with accrued interest thereon, will be due and payable. In addition, certain mandatory prepayments are required to be made upon the occurrence of certain events described in the Credit Agreement. Wells Fargo agreed to make swingline loans from time to time through the maturity date of December 19, 2017 in amounts equal to the difference between the amounts actually loaned by the Lenders and the aggregate revolving credit commitment. The Credit Agreement is collateralized by substantially all of our assets. As of September 30, 2013, Wells Fargo was the sole Lender under the Credit Agreement.

On December 19, 2017, all principal, interest and other amounts outstanding under the Credit Agreement are payable in full. At any time prior to the maturity date, we may repay any amounts owing under all revolving credit loans, term loans, and all swingline loans in whole or in part, subject to certain minimum thresholds, without premium or penalty, other than breakage costs.

The term loan and any revolving credit loans made under the Credit Agreement bear interest, at our election, at either (i) the base rate (described below) plus 0.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1), (ii) the London Inter-Bank Offered Rate (“LIBOR”) Market Index Rate (as defined in the Credit Agreement) plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1), or (iii) the LIBOR Rate (as defined in the Credit Agreement) plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1). Currently, the term loan and revolving credit loans under the Credit Agreement bear interest, at our election, at either (x) the base rate plus 1.25%, (y) the LIBOR Market Index Rate, plus 2.25%, or (z) the LIBOR Rate plus 2.25%. Swingline loans bear interest at the LIBOR Market Index Rate plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1). Currently, swingline loans bear interest at the LIBOR Market Index Rate plus 2.25%. Interest on each loan featuring the base rate or the LIBOR Market Index Rate is due and payable on the last business day of each calendar month; interest on each loan featuring the LIBOR Rate is due and payable on the last day of each interest period selected by us when selecting the LIBOR Rate as the benchmark for interest calculation. For purposes of the Credit Agreement, the base rate means the highest of (i) the prime rate (as announced by Wells Fargo), (ii) the federal funds rate plus 0.50%, and (iii) LIBOR for an interest period of one month plus 1.00%. Our obligations under the Credit Agreement and all loans made thereunder are fully secured by a security interest in our assets pursuant to a separate collateral agreement entered into in conjunction with the Credit Agreement.

The Credit Agreement contains customary covenants, representations and warranties and other terms customary for revolving credit loans of this nature. In this regard, the Credit Agreement requires us to not, among other things, (a) permit the Consolidated

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Total Leverage Ratio (as defined in the Credit Agreement) to be greater than 3.5 to 1 as of any fiscal quarter ending during 2013, greater than 3.35 to 1 as of any fiscal quarter ending during 2014, greater than 3 to 1 as of any fiscal quarter ending during 2015, greater than 2.75 to 1 as of any fiscal quarter ending during 2016, and greater than 2.5 to 1 as of any fiscal quarter ending thereafter; (b) for any period of four consecutive fiscal quarters, permit the ratio of Consolidated EBITDA (as defined in the Credit Agreement and subject to certain adjustments) to Consolidated Fixed Charges (as defined in the Credit Agreement) to be less than 1.75 to 1; (c) subject to certain adjustments, permit Consolidated Net Income (as defined in the Credit Agreement) for certain periods to be less than $0; or (d) subject to certain conditions and adjustments, permit the aggregate amount of all Facility Capital Expenditures (as defined in the Credit Agreement) in any fiscal year beginning in 2013 to exceed $30 million. Additionally, the Credit Agreement contains various negative covenants with which we must comply, including, but not limited to, limitations respecting: the incurrence of indebtedness, the creation of liens or pledges on our assets, mergers or similar combinations or liquidations, asset dispositions, the repurchase or redemption of equity interests and debt, the issuance of equity, the payment of dividends and certain distributions, the entrance into related party transactions and other provisions customary in similar types of agreements.

We had originally entered into an unsecured credit agreement, dated September 30, 2010, with certain lenders who were or became party thereto and Wells Fargo, as administrative agent for the lenders. Pursuant to the terms of that credit agreement, the lenders agreed to make revolving credit loans up to an aggregate amount of $125 million. Wells Fargo also agreed to make swingline loans from time to time through the maturity date of September 10, 2015 in amounts equal to the difference between the amount actually loaned by the lenders and the aggregate credit agreement. The unsecured credit agreement was amended and restated as of December 19, 2012, as the Credit Agreement.

In summary, principal balances under our long-term debt as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Term loan	$	95,000	$	100,000
Revolving credit loans	156,157		137,566
Total long-term debt	251,157		237,566
Less current portion	10,000		10,000
Long-term portion	$	241,157	$	227,566

Future minimum principal payments on our long-term debt as of September 30, 2013, were as follows (in thousands):

Years Ending	Future Minimum
December 31	Principal Payments
Remaining 2013	$	2,500
2014	10,000
2015	10,000
2016	10,000
2017	218,657
Total future minimum principal payments	$	251,157

As of September 30, 2013, we had available borrowings under the Credit Agreement of approximately $18.8 million. Our interest rate under the Credit Agreement as of September 30, 2013 was a fixed rate of 3.23% on approximately $146.3 million as a result of an interest rate swap, a variable floating rate of 2.44% on approximately $104.7 million and a variable floating rate of 2.50% on approximately $157,000. Our interest rate as of December 31, 2012 was a fixed rate of 2.98% on $150.0 million, a fixed rate of 2.22% on $87.0 million and a variable floating rate of 2.31% on approximately $566,000.

On October 4, 2013, we entered into a First Amendment to the Credit Agreement, which substantially modified certain terms and conditions of the Credit Agreement. Those modifications are discussed below in Note 14.

10. Derivatives.

Interest Rate Swap.  On December 19, 2012, we entered into a $150.0 million pay-fixed, receive-variable interest rate swap with Wells Fargo to fix the one-month LIBOR rate at 0.98%. The variable portion of the interest rate swap is tied to the one-month LIBOR rate (the benchmark interest rate for the Credit Agreement). The interest rates under both the interest rate swap and the

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underlying debt are reset, the swap is settled with the counterparty, and interest is paid, on a monthly basis. The interest rate swap is scheduled to expire on December 19, 2017. As of September 30, 2013, this interest rate swap qualified as a cash flow hedge. During the three and nine-month periods ended September 30, 2013, the amount reclassified from accumulated other comprehensive income to earnings due to hedge effectiveness was not material. The fair value of our cash flow hedge at September 30, 2013 was an asset of approximately $745,000, which was offset by approximately $290,000 of deferred tax liability.

Foreign Currency Forward Contracts. On August 31, 2013, we forecasted a net exposure for September 30, 2013 (representing the difference between Euro and GBP-denominated receivables and Euro-denominated payables) of approximately 411,000 Euros and 408,000 GBPs. In order to partially offset such risks at August 31, 2013, we entered into a 30-day forward contract for the Euro and GBP with notional amounts of approximately 411,000 Euros and 408,000 GBPs. We enter into similar transactions at various times to partially offset exchange rate risks we bear. These contracts are marked to market at each month-end. The effect on our consolidated statements of income for the three and nine-month periods ended September 30, 2013 and 2012 of all forward contracts, and the fair value of our open positions as of September 30, 2013, were not material to our financial position.

11. Fair Value Measurements. Our financial assets (liabilities) carried at fair value measured on a recurring basis as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	745		$	—	$	745		$	—
				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	December 31, 2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	(1,788	)	$	—	$	(1,788	)	$	—

(1)    The fair value of the interest rate swap is determined based on forward yield curves.

Certain of our business combinations involve the potential for the payment of future contingent consideration, generally based on a percentage of future product sales or upon attaining specified future revenue milestones. See Note 5 for further information regarding these acquisitions. We re-measure the contingent consideration liability at the estimated fair value at each reporting period with the change in fair value recognized in the accompanying consolidated statements of income. We measure the initial liability and re-measure the liability on a recurring basis using Level 3 inputs as defined under authoritative guidance for fair value measurements. Changes in the fair value of our contingent liability during the three and nine-month periods ended September 30, 2013, were as follows (in thousands):

	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2013			2013
Beginning balance	$	6,692		$	6,697
Fair value adjustments recorded to income during the period	(4,108		)	(4,075		)
Contingent payments made	(22		)	(60		)
Ending balance	$	2,562		$	2,562

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The recurring Level 3 measurement of our contingent consideration liability includes the following significant unobservable inputs (amount in thousands):

Contingent consideration liability	Fair value at September 30, 2013		Valuation technique	Unobservable inputs	Range
Revenue-based payments	$	2,266	Discounted Cash Flow	Discount rate	11.0% - 15.0%
				Probability of milestone payment	90%
				Projected year of payments	2013-2028
Other payments	296		Discounted cash flow	Discount rate	5.4%
				Probability of milestone payment	100%
				Projected year of payments	2013-2015

We re-measure the contingent consideration liability to fair value each reporting period using projected revenues, discount rates, probabilities of payment, and projected payment dates. Projected contingent payment amounts are discounted back to the current period using a discounted cash flow model. Projected revenues are based on our most recent internal operational budgets and long-range strategic plans. Increases (decreases) in discount rates and the time to payment may result in lower (higher) fair value measurements. A decrease in the probability of any milestone payment may result in lower fair value measurements. An increase (decrease) in either the discount rate or the time to payment, in isolation, may result in a significantly lower (higher) fair value measurement.

Our determination of the fair value of the contingent consideration liability could change in future periods based upon our ongoing evaluation of these significant unobservable inputs. We intend to record any such change in fair value in our consolidated statements of income. As of September 30, 2013, approximately $2.3 million was reflected in other long-term obligations and $214,000 was reflected in accrued expenses in our consolidated balance sheets. As of December 31, 2012, approximately $5.9 million was reflected in other long-term obligations and $723,000 was reflected in accrued expenses in our consolidated balance sheets. The cash paid to settle the contingent consideration liability recognized at fair value as of the acquisition date (including measurement-period adjustments) has been reflected as a cash outflow from financing activities in the accompanying consolidated statements of cash flows. See Note 12 for further information regarding the $3.8 million of fair value reductions to the contingent consideration liability we incurred in connection with our acquisition of the Ostial assets and the associated intangible asset impairment charge.

During both the three and nine-month periods ended September 30, 2013, we had losses of approximately $8.1 million and $8.2 million, respectively, compared to $17,000 and $27,000 for the corresponding three and nine-month periods ended September 30, 2012, related to the measurement of non-financial assets at fair value on a non-recurring basis subsequent to their initial recognition.

Of the loss amount noted in the preceding paragraph for the three and nine-month periods ended September 30, 2013, approximately $8.1 million related to the impairment of our intangible assets related to our Ostial acquisition (see Note 12). The non-recurring fair values of the Ostial intangible assets as of September 30, 2013 were approximately $1.5 million for developed technology and $160,000 for other intangible assets. Determining the fair value is judgmental in nature and requires the use of significant estimates and assumptions, considered to be level 3 inputs. These values were determined using a discounted cash flow valuation technique. We did not have other intangible assets measured at fair value on a non-recurring basis as of September 30, 2013.

The carrying amount of cash and cash equivalents, trade receivables, and trade payables approximates fair value because of the immediate, short-term maturity of these financial instruments. The carrying amount of long-term debt approximates fair value, as determined by borrowing rates estimated to be available to us for debt with similar terms and conditions. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs, with the exception of cash and cash equivalents (Level 1).

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12. Goodwill and Intangible Assets. The carrying amount of goodwill increased approximately $381,000 for the nine months ended September 30, 2013 due to an adjustment related to a previous acquisition (see Note 5).

Other intangible assets at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	8,906	$	(2,298	)	$	6,608
Distribution agreements	5,176		(1,660		)	3,516
License agreements	2,733		(1,156		)	1,577
Trademarks	7,255		(1,719		)	5,536
Covenants not to compete	1,029		(339		)	690
Customer lists	20,204		(10,213		)	9,991
Royalty agreements	267		(267		)	—
Total	$	45,570	$	(17,652	)	$	27,918

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	7,843	$	(2,045	)	$	5,798
Distribution agreements	5,176		(1,301		)	3,875
License agreements	2,733		(861		)	1,872
Trademarks	7,311		(1,362		)	5,949
Covenants not to compete	1,035		(160		)	875
Customer lists	20,468		(8,038		)	12,430
Royalty agreements	267		(267		)	—
Total	$	44,833	$	(14,034	)	$	30,799

Aggregate amortization expense was approximately $3.4 million and $10.4 million for the three and nine-month periods ended September 30, 2013, respectively, and approximately $1.9 million and $5.7 million for the three and nine-month periods ended September 30, 2012, respectively.

Estimated amortization expense for intangible assets for the next five years consisted of the following as of September 30, 2013 (in thousands):

Year Ending December 31
Remaining 2013	$	3,363
2014	12,684
2015	12,140
2016	11,515
2017	11,150

We evaluate long-lived assets, including amortizing intangible assets, for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. We perform the impairment analysis at the asset group for which the lowest level of identifiable cash flows are largely independent of the cash flows of other assets and liabilities. We compared the carrying value of the amortizing intangible assets acquired in our Ostial acquisition in January 2012 (see Note 5) to the undiscounted cash flows expected to result from the asset group and determined that the carrying amount was not recoverable. We then determined the fair value of the amortizing assets related to the Ostial acquisition based on estimated future cash flows discounted back to their present value using a discount rate that reflects the risk profiles of the underlying activities. Some of the factors that influenced our estimated cash flows were slower than anticipated sales growth in the products acquired from our Ostial acquisition and

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uncertainty about future sales growth. The excess of the carrying value compared to the fair value was recognized as an intangible asset impairment charge. During the three months ended September 30, 2013, we recorded an impairment charge of approximately $8.1 million, which was offset by approximately $3.8 million of fair value reductions to the contingent consideration liability.

13. Commitments and Contingencies.

Litigation. In the ordinary course of business, we are involved in various claims and litigation matters. These claims and litigation matters may include actions involving product liability, intellectual property, contractual disputes and employment matters. We do not believe that any such actions are likely to be, individually or in the aggregate, material to our business, financial condition, results of operations or liquidity. However, in the event of unexpected further developments, it is possible that the ultimate resolution of these matters, or other similar matters, if unfavorable, may be materially adverse to our business, financial condition, results of operations or liquidity. Legal costs for these matters, such as outside counsel fees and expenses, are charged to expense in the period incurred.

14. Subsequent Event. On October 4, 2013, we entered into a First Amendment to the Amended and Restated Credit Agreement, dated as of October 4, 2013 (the “Amendment”), by and among Merit, certain subsidiaries of Merit, the Lenders and Wells Fargo as administrative agent for the Lenders. The Amendment sets forth the terms and conditions upon which Merit, Wells Fargo and the other parties to the Amendment have agreed to amend the Credit Agreement. Among other provisions, the Amendment provides for an increase in our borrowing capacity under the Credit Agreement by $40.0 million, adjusts the maximum Consolidated Total Leverage Ratio (as defined in the Credit Agreement) to be no greater than 4.75 to 1 as of any fiscal quarter ending during 2013, no greater than 4.00 to 1 at March 31, 2014, no greater than 3.75 to 1 at June 30, 2014, no greater than 3.50 to 1 at September 30, 2014, and no greater than 3.25 to 1 at December 31, 2014. The maximum ratio thereafter is unchanged. The Amendment also includes an expanded applicable margin table with pricing levels for the higher allowable maximum Consolidated Total Leverage Ratio.

On October 4, 2013, we acquired certain assets contemplated by an Asset Purchase Agreement we executed with Datascope Corporation, a Delaware corporation. The primary assets we acquired consist of the SAFEGUARD® Pressure Assisted Device, which assists in obtaining and maintaining hemostasis after a femoral procedure, and the AIR-BAND™ Radial Compression Device, which is indicated to assist hemostasis of the radial artery puncture site while maintaining visibility. The purchase price was approximately $27.5 million. The initial accounting for this acquisition has not yet been completed.

On October 4, 2013, we acquired certain assets contemplated by an Asset Purchase Agreement with Radial Assist, LLC, a Georgia limited liability company. The primary assets we acquired consist of the RAD BOARD®, RAD BOARD®XTRA™, RAD TRAC™, and RAD REST® devices. The RAD BOARD is designed to provide a larger work space for physicians and an area for patients to rest their arms during radial procedures. The RAD BOARD XTRA is designed to work in conjunction with the RAD BOARD by extending the usable work space and allowing for a 90-degree perpendicular extension of the arm for physicians who prefer doing procedures at a 90-degree angle. The RAD TRAC is also designed to be used with the RAD BOARD and facilitates placement and removal of the RAD BOARD with the patient still on the table. The RAD REST is a disposable, single-use product designed to stabilize the arm by ergonomically supporting the elbow, forearm and wrist during radial procedures. The purchase price was approximately $2.5 million. The initial accounting for this acquisition has not yet been completed.

ITEM 2.MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF

OPERATIONS

Disclosure Regarding Forward-Looking Statements

This Report includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements in this Report, other than statements of historical fact, are forward-looking statements for purposes of these provisions, including any projections of earnings, revenues or other financial items, any statements of the plans and objectives of our management for future operations, any statements concerning proposed new products or services, any statements regarding the integration, development or commercialization of the business or assets acquired from other parties, any statements regarding future economic conditions or performance, and any statements of assumptions underlying any of the foregoing. All forward-looking statements included in this Report are made as of the date hereof and are based on information available to us as of such date. We assume no obligation to update any forward-looking statement. In some cases, forward-looking statements can be identified by the use of terminology such as “may,” “will,” “expects,” “plans,” “anticipates,” “intends,” “believes,” “estimates,” “potential,” or “continue,” or the negative thereof or other comparable terminology. Although we believe that the expectations reflected in the forward-looking statements contained herein are reasonable, there can be no assurance that any such expectation or any forward-looking statement will prove to be correct. Our actual results will vary, and may vary materially, from those projected or assumed in the forward-

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looking statements. Our financial condition and results of operations, as well as any forward-looking statements, are subject to inherent risks and uncertainties, including risks relating to product recalls and product liability claims; potential restrictions on our liquidity or our ability to operate our business by the Credit Agreement, as amended, and the consequences of any default under that agreement; possible infringement of our technology or the assertion that our technology infringes the rights of other parties; the potential imposition of fines, penalties, or other adverse consequences if our employees or agents violate the U.S. Foreign Corrupt Practices Act or other laws or regulations; expenditures relating to research, development, testing and regulatory approval or clearance of our products and the risk that such products may not be developed successfully or approved for commercial use; greater governmental scrutiny and regulation of the medical device industry; reforms to the 510(k) process administered by the U.S. Food and Drug Administration (the "FDA"); laws targeting fraud and abuse in the healthcare industry; potential for significant adverse changes in, or our failure to comply with, governing regulations; increases in the price of commodity components; negative changes in economic and industry conditions in the United States and other countries; termination or interruption of relationships with our suppliers, or failure of such suppliers to perform; our potential inability to successfully manage growth through acquisitions, including the inability to commercialize technology acquired through recent, proposed or future acquisitions; fluctuations in Euro and GBP exchange rates; our need to generate sufficient cash flow to fund our debt obligations, capital expenditures, and ongoing operations; concentration of a substantial portion of our revenues among a few products and procedures; development of new products and technology that could render our existing products obsolete; market acceptance of new products; volatility in the market price of our common stock; modification or limitation of governmental or private insurance reimbursement policies; changes in health care markets related to health care reform initiatives; failures to comply with applicable environmental laws; changes in key personnel; work stoppage or transportation risks; uncertainties associated with potential healthcare policy changes which may have a material adverse effect on our operations or financial condition; introduction of products in a timely fashion; price and product competition; availability of labor and materials; cost increases; fluctuations in and obsolescence of inventory; potential disruption of our operations due to severe weather conditions or natural disasters; and other factors referred to in our Annual Report on Form 10-K for the year ended December 31, 2012 and other materials filed with the Securities and Exchange Commission. All subsequent forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these cautionary statements. Actual results will differ, and may differ materially, from anticipated results. Financial estimates are subject to change and are not intended to be relied upon as predictions of future operating results, and we assume no obligation to update or disclose revisions to those estimates. Additional factors that may have a direct bearing on our operating results are discussed in Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2012.

OVERVIEW

The following discussion and analysis of our financial condition and results of operation should be read in conjunction with the consolidated financial statements and related condensed notes thereto, which are included in Part I of this Report.

We design, develop, manufacture and market single-use medical products for interventional and diagnostic procedures. For financial reporting purposes, we report our operations in two operating segments: cardiovascular and endoscopy. Our cardiovascular segment consists of cardiology and radiology devices which assist in diagnosing and treating coronary arterial disease, peripheral vascular disease and other non-vascular diseases, including our embolotherapeutic products. Our endoscopy segment consists of gastroenterology and pulmonology medical devices which assist in the palliative treatment of expanding esophageal, tracheobronchial and biliary strictures caused by malignant tumors.

For the quarter ended September 30, 2013, we reported record revenues of $115.2 million, up 20.1% from the three months ended September 30, 2012 of $95.9 million. Revenues for the nine months ended September 30, 2013 were a record $329.0 million, compared to $292.1 million for the first nine months of 2012, an increase of 12.7%.

Gross profit as a percentage of sales decreased to 44.3% and 42.9% for the three and nine-month periods ended September 30, 2013, respectively, compared to 47.3% and 46.7% for the three and nine-month periods ended September 30, 2012, respectively. The reduction in gross profit for both periods was due primarily to higher costs of approximately 1.5% and 1.7% of sales, respectively, resulting from lower production volumes for the three and nine months ended September 30, 2013, amortization of developed technology costs of approximately 1.2% of sales for both periods of 2013 associated with our acquisition of Thomas Medical in December 2012, and the effect of the newly-initiated Medical Device Excise Tax (“MDET”) of approximately 1.0% of sales for both periods of 2013, which was assessed pursuant to the provisions of the Affordable Care Act of 2010. During the three and nine months ended September 30, 2013, we also had non-recurring finished goods inventory mark-up costs of 0.1% and 0.2% of sales, respectively, related to the Thomas Medical acquisition. Excluding the non-recurring Thomas Medical finished goods inventory mark-up costs, gross margins would have been 44.4% and 43.1% of sales, respectively, for the three and nine months ended September 30, 2013. Our gross profit for the third quarter of 2013 improved 150 basis points from the second quarter of 2013. This improvement was largely the result of higher production volumes in the third quarter of 2013, when compared to the second quarter of 2013.

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During the three and nine months ended September 30, 2013, we reduced the amount of the contingent consideration liability related to the Ostial PRO Stent Positioning System, which we acquired in January 2012, by approximately $3.8 million. Under the terms of the Asset Purchase Agreement we executed with Ostial Solutions, LLC ("Ostial"), we are obligated to make contingent purchase price payments based on a percentage of future sales of products utilizing the Ostial PRO Stent Positioning System. The adjustment to the contingent consideration liability triggered a review of our Ostial intangible assets, which resulted in an intangible asset write-down of approximately $8.1 million related to those assets. These adjustments reduced operating income for each of the three and nine-month periods ended September 30, 2013 by approximately $4.3 million, or approximately $2.7 million net of tax. The reduction of the Ostial contingent consideration liability and the impairment of the Ostial intangible assets was the result of our assessment that we are not likely to generate the level of revenues from sales of the Ostial PRO Stent Positioning System that we anticipated at the acquisition date.

Net income for the three months ended September 30, 2013 was $5.6 million, or $.13 per share, compared to $7.2 million, or $.17 per share, for the three months ended September 30, 2012. Net income for the nine-month period ended September 30, 2013 was $10.0 million, or $0.23 per share, compared to $19.1 million, or $0.45 per share, for the corresponding period of 2012. The decrease was primarily attributable to the write-down of intangible assets and reduction of contingent consideration liability related to the Ostial PRO Stent Positioning System, lower gross margins, and higher interest expense included in other expenses. Excluding the write-down of intangible assets and contingent consideration liability related to the Ostial PRO Stent Positioning System of approximately $4.3 million, or approximately $2.7 million net of tax, net income for the three and nine months ended September 30, 2013 would have been approximately $8.3 million and $12.7 million, respectively.

Our endoscopy segment made significant progress and generated operating income of approximately $638,000 and $897,000, respectively, for the three and nine months ended September 30, 2013, when compared to an operating loss of approximately $87,000 and $694,000, respectively, for the corresponding periods of 2012. This increase in operating income for the three and nine months ended September 30, 2013 was largely driven by higher sales and lower operating expenses associated with the endoscopy segment.

Subsequent to the quarter ended September 30, 2013, we completed asset acquisitions from Datascope Corporation for approximately $27.5 million (which consisted primarily of the SAFEGUARD® Pressure Assisted Device and AIR-BAND™ Radial Compression Device) and from Radial Assist, LLC (which consisted primarily of the RAD BOARD®, RAD BOARD®XTRA™, RAD TRAC™, and RAD REST® devices) for $2.5 million. The trailing twelve-month revenues attributable to the assets we acquired in these two acquisitions were approximately $7.5 million. We believe these products will assist us in our efforts to provide a complete offering for radial artery access procedures, which is a growing market in the U.S. and internationally.

We expect to launch a number of new products during the remainder of 2013, including the TIO™ Three-in-One Oral Airway Bite Block, the One Snare™ Single-Loop Device, the basixTOUCH™ Inflation Device, the PHD™ Hemostasis Valve, the ASAP LP™ Aspiration Catheter, the Worley™ Snare System, the Bearing nsPVA™ Embolization Particles, the DialEase™ Splittable Sheath, the EndoMAXX EDT™ Esophageal Stent and the ConcierGE® Guiding Catheter. We believe our earnings will increase if we are successful with the release of new products and the implementation of cost-cutting initiatives. During the second quarter of 2013, we began cost-cutting initiatives related to selling, general and administrative expenses of approximately $4.5 million, which had a positive impact on our financial performance for the three and nine-month periods ended September 30, 2013. Our selling, general and administrative expenses decreased to 27.2% and 28.9% of sales for the three and nine-month periods ended September 30, 2013, respectively, compared to 30.1% and 30.3% for the three and nine-month periods ended September 30, 2012, respectively.

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Results of Operations

The following table sets forth certain operational data as a percentage of sales for the three and nine-month periods ended September 30, 2013 and 2012:

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2013	2012	2013	2012
Net sales	100%	100%	100%	100%
Gross profit	44.3	47.3	42.9	46.7
Selling, general, and administrative expenses	27.2	30.1	28.9	30.3
Research and development expenses	6.3	7.4	7.6	6.9
Intangible asset impairment charge	7.0	-	2.5	-
Contingent consideration benefit	(3.6)	-	(1.2)	-
Acquired in-process research and development	-	0.3	-	0.8
Income from operations	7.3	9.5	5.1	8.7
Other income (expense) — net	(1.7)	-	(1.6)	0.2
Income before income tax expense	5.6	9.4	3.5	8.8
Net income	4.9	7.5	3.0	6.5

Sales. Sales for the three months ended September 30, 2013 increased by 20.1%, or approximately $19.3 million, compared to the corresponding period of 2012. Sales for the nine months ended September 30, 2013 increased by 12.7%, or approximately $37.0 million, compared to the corresponding period of 2012. Listed below are the sales by business segment for the three and nine-month periods ended September 30, 2013 and 2012 (in thousands):

		Three Months Ended					Nine Months Ended
		September 30,					September 30,
	% Change	2013		2012		% Change	2013		2012
Cardiovascular
Stand-alone devices	15%	$	31,792	$	27,528	7%	$	91,577	$	85,869
Custom kits and procedure trays	15%	26,389		22,915		10%	77,163		69,959
Inflation devices	(4)%	16,450		17,092		(8)%	48,012		51,950
Catheters	17%	18,779		16,082		15%	55,013		47,812
Embolization devices	6%	8,977		8,489		(4)%	23,819		24,746
CRM/EP	—%	8,472		—		—%	20,982		—
Total	20%	110,859		92,106		13%	316,566		280,336
Endoscopy
Endoscopy devices	14%	4,351		3,801		6%	12,467		11,721
Total	20%	$	115,210	$	95,907	13%	$	329,033	$	292,057

Our cardiovascular sales growth of 20.4% for the three months ended September 30, 2013, and 12.9% for the nine months ended September 30, 2013, when compared to the corresponding periods of 2012, was largely the result of increased sales of our cardiac rhythm management ("CRM") and electrophysiology ("EP") products acquired from Thomas Medical ($8.5 million and $21.0 million for the three and nine-month periods ended September 30, 2013, respectively), catheters (particularly our peritoneal dialysis catheter acquired from MediGroup, Prelude® sheath product line and micro catheter product line), custom kits and procedure trays, and stand alone devices (particularly our Merit Laureate® hydrophilic guide wires and EN Snare® endovascular snare). 

Our endoscopy sales increased 14.5% for the three months ended September 30, 2013, and increased 6.4% for the nine months ended September 30, 2013, when compared to the corresponding periods of 2012. The increase in sales for the three and nine-month periods ended September 30, 2013, when compared to the corresponding periods of 2012, was primarily the result of sales of our EndoMAXX™ fully-covered esophageal stent.

Gross Profit.Gross profit as a percentage of sales decreased to 44.3% and 42.9% for the three and nine-month periods ended September 30, 2013, respectively, compared to 47.3% and 46.7% for the three and nine-month periods ended September 30, 2012, respectively. The reduction in gross profit for both periods was due primarily to higher costs of approximately 1.5% and 1.7% of sales, respectively, resulting principally from lower production volumes for the three and nine months ended September 30, 2013,

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amortization of developed technology costs of approximately 1.2% of sales for both periods of 2013, associated with the purchase of Thomas Medical, and the effects of the MDET of approximately 1.0% of sales for both periods of 2013. During the three and nine months ended September 30, 2013, we also had non-recurring finished goods inventory mark-up costs of 0.1% and 0.2% of sales, respectively, related to the products we acquired in the Thomas Medical acquisition. Excluding the non-recurring Thomas Medical finished goods inventory mark-up costs, gross margins would have been 44.4% and 43.1% of sales, respectively, for the three and nine months ended September 30, 2013. Our gross profit for the third quarter of 2013 improved 150 basis points from the second quarter of 2013. This improvement was largely the result of higher production volumes in the third quarter of 2013, when compared to the second quarter of 2013.

Operating Expenses. Selling, general and administrative expenses decreased to 27.2% of sales for the three months ended September 30, 2013, from 30.1% of sales for the three months ended September 30, 2012. Selling, general and administrative expenses decreased to 28.9% of sales for the nine months ended September 30, 2013, compared with 30.3% of sales for the nine months ended September 30, 2012. The decrease in both periods was primarily due to the implementation of cost-cutting initiatives in expenses such as shows and conventions, 401(k) employer matching contributions, and bonuses. During the three and nine months ended September 30, 2013, we recorded an intangible write-down of approximately $8.1 million related to the acquisition of our Ostial PRO Stent Positioning System. In connection with this write-down, we lowered the contingent consideration liability related to this acquisition by approximately $3.8 million. These adjustments increased operating expenses for the three and nine months ended September 30, 2013 by approximately $4.3 million.

Research and Development Expenses. Research and development expenses decreased to 6.3% of sales for the three months ended September 30, 2013, compared with 7.4% of sales for the three months ended September 30, 2012. This decrease was primarily the result of an Irish government research and development benefit related to our new Vision building in Galway, Ireland. Research and development expenses increased to 7.6% of sales for the nine months ended September 30, 2013, compared to 6.9% of sales for the nine months ended September 30, 2012. The increase in research and development expenses for the nine months ended September 30, 2013 was primarily due to headcount additions for research and development to support new products, personnel increases in the regulatory department to support registrations in foreign countries to expand international product offerings, and research and development costs associated with our acquisition of Thomas Medical.

During the three and nine months ended September 30, 2013, we did not record any charges for acquired in-process research and development.

Operating Income (Loss). The following table sets forth our operating income or loss by business segment for the three and nine-month periods ended September 30, 2013 and 2012, respectively (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2013		2012			2013		2012
Operating Income (Loss)
Cardiovascular	$	7,753	$	9,169		$	16,031	$	26,005
Endoscopy	638		(87		)	897		(694		)
Total operating income	$	8,391	$	9,082		$	16,928	$	25,311

Cardiovascular Operating Income.  During the three months ended September 30, 2013, we reported income from operations of approximately $7.8 million from our cardiovascular business segment, compared to income from operations of approximately $9.2 million for the corresponding period of 2012. For the nine months ended September 30, 2013, we reported income from operations of approximately $16.0 million from our cardiovascular business segment, compared to income from operations of approximately $26.0 million for the corresponding period of 2012. When compared to the prior-year periods, operating income for the three and nine-month periods ended September 30, 2013 was unfavorably affected by a write-down of intangible assets, offset partially by a decrease in the associated contingent consideration liability, related to the Ostial PRO Stent Positioning System and lower gross margins.

Endoscopy Operating Income (Loss).  During the three months ended September 30, 2013, we reported income from operations of approximately $638,000 from our endoscopy business segment, compared to a loss from operations of approximately $87,000 for the corresponding period of 2012. For the nine months ended September 30, 2013, we reported income from operations of approximately $897,000 from our endoscopy business segment, compared to a loss from operations of approximately $694,000 for the corresponding period of 2012. The improvement in operating results for the three and nine-month periods ended September 30, 2013, when compared to the corresponding periods of 2012, was largely driven by lower operating expenses.

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Other Income (Expense) - Net. Other expense for the three months ended September 30, 2013 was approximately $2.0 million, compared to other expense of approximately $45,000 for the corresponding period in 2012. Other expense for the nine months ended September 30, 2013 was approximately $5.3 million, compared to other income of approximately $457,000 for the corresponding period in 2012. The net increase in other expense for both periods was principally the result of higher average outstanding debt balances and the corresponding increase in interest expense and the absence of any gain on sales of marketable securities, compared to approximately $745,000 of gains on sales of marketable securities recognized during the three and nine-month periods ended September 30, 2012.

Income Taxes.  Our overall effective tax rate for the three months ended September 30, 2013 was 12.9%, compared to 20.0% for the corresponding period of 2012. For the nine months ended September 30, 2013, our effective tax rate was 14.0%, compared to 26.0% for the corresponding period of 2012. The effective income tax rates for the three and nine-month periods ended September 30, 2013, when compared to the corresponding periods of 2012, were lower as a result of a higher mix of earnings from our foreign operations, which are taxed at lower rates than our U.S. operations, and the release of reserves for uncertain tax positions due to statute of limitation expirations. In addition, the effective tax rate for the nine months ended September 30, 2013 was lower than the corresponding prior-year period due to the reinstatement of the federal research and development credit for the 2012 tax year. The credit was reinstated by the American Taxpayer Relief Act of 2012, which was signed on January 2, 2013. We recognized the federal research and development credit as a discrete benefit in the first quarter of 2013, the period in which the reinstatement was enacted.

Net Income.  During the three months ended September 30, 2013, we reported net income of approximately $5.6 million, compared to net income of approximately $7.2 million for the corresponding period of 2012. For the nine months ended September 30, 2013, we reported net income of approximately $10.0 million, compared to net income of approximately $19.1 million for the corresponding period of 2012. The decrease was primarily attributable to a write-down of intangible assets, offset partially by a decrease in the associated contingent consideration liability, related to the Ostial PRO Stent Positioning System acquisition, lower gross margins and higher interest expense included in other expenses.

Liquidity and Capital Resources

Our working capital as of September 30, 2013 and December 31, 2012 was $98.9 million and $89.0 million, respectively. The increase in working capital during the nine months ended September 30, 2013 was primarily the result of a decrease in trade payables, mostly from the outstanding amounts related to the completion of our Rex and Anita Bean Building at our headquarters facility. As of September 30, 2013, we had a current ratio of 2.6 to 1.

At September 30, 2013 and December 31, 2012, we had cash and cash equivalents of approximately $9.1 million and $9.7 million respectively, of which approximately $8.5 million and $8.1 million, respectively, were held by foreign subsidiaries. For each of our foreign subsidiaries, we make an assertion as to whether the earnings are intended to be repatriated to the United States or held by the foreign subsidiary for permanent reinvestment. The cash held by our foreign subsidiaries for permanent reinvestment is generally used to fund the operating activities of our foreign subsidiaries and for further investment in foreign operations. We have accrued a deferred tax liability on our consolidated financial statements for the portion of our foreign earnings that are available to be repatriated to the United States.

In addition, cash held by our subsidiary in China is subject to local laws and regulations that require government approval for the transfer of such funds to entities located outside of China. As of September 30, 2013 and December 31, 2012, we had cash and cash equivalents of approximately $7.4 million and $6.4 million, respectively, held by our subsidiary in China.

During the nine months ended September 30, 2013, our inventory balances decreased by approximately $3.5 million, from $84.6 million at December 31, 2012 to $81.1 million at September 30, 2013. The decrease was primarily the result of an effort to improve inventory turns throughout our company.

Pursuant to the terms of the Credit Agreement, the Lenders have agreed to make revolving credit loans up to an aggregate amount of $175 million. The Lenders also made a term loan in the amount of $100 million, repayable in quarterly installments of $2.5 million until the maturity date of December 19, 2017, at which time the term loan and revolving credit loans, together with accrued interest thereon, will be due and payable. In addition, certain mandatory prepayments are required to be made upon the occurrence of certain events described in the Credit Agreement. Wells Fargo has agreed to make swingline loans from time to time through the maturity date of December 19, 2017 in amounts equal to the difference between the amounts actually loaned by the Lenders and the aggregate revolving credit commitment. The Credit Agreement is collateralized by substantially all of our assets. As of September 30, 2013, Wells Fargo was the sole Lender under the Credit Agreement.

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On December 19, 2017, all principal, interest and other amounts outstanding under the Credit Agreement are payable in full. At any time prior to the maturity date, we may repay any amounts owing under all revolving credit loans, term loans, and all swingline loans in whole or in part, subject to certain minimum thresholds, without premium or penalty, other than breakage costs.

The Credit Agreement contains customary covenants, representations and warranties and other terms customary for revolving credit loans of this nature. In this regard, the Credit Agreement requires us to not, among other things, (a) permit the Consolidated Total Leverage Ratio (as defined in the Credit Agreement) to be greater than 3.5 to 1 as of any fiscal quarter ending during 2013, greater than 3.35 to 1 as of any fiscal quarter ending during 2014, greater than 3 to 1 as of any fiscal quarter ending during 2015, greater than 2.75 to 1 as of any fiscal quarter ending during 2016, and greater than 2.5 to 1 as of any fiscal quarter ending thereafter; (b) for any period of four consecutive fiscal quarters, permit the ratio of Consolidated EBITDA (as defined in the Credit Agreement and subject to certain adjustments) to Consolidated Fixed Charges (as defined in the Credit Agreement) to be less than 1.75 to 1; (c) subject to certain adjustments, permit Consolidated Net Income (as defined in the Credit Agreement) for certain periods to be less than $0; or (d) subject to certain conditions and adjustments, permit the aggregate amount of all Facility Capital Expenditures (as defined in the Credit Agreement) in any fiscal year beginning in 2013 to exceed $30 million. Additionally, the Credit Agreement contains various negative covenants with which we must comply, including, but not limited to, limitations respecting: the incurrence of indebtedness, the creation of liens or pledges on our assets, mergers or similar combinations or liquidations, asset dispositions, the repurchase or redemption of equity interests and debt, the issuance of equity, the payment of dividends and certain distributions, the entrance into related party transactions and other provisions customary in similar types of agreements.

As of September 30, 2013, we had available borrowings under the Credit Agreement of approximately $18.8 million. Our interest rate under the Credit Agreement as of September 30, 2013 was a fixed rate of 3.23% on $146.3 million as a result of an interest rate swap, a variable floating rate of 2.44% on $104.7 million and a variable floating rate of 2.50% on approximately $157,000.

Capital expenditures for property and equipment were approximately $48.0 million and $49.3 million, respectively, for the nine months ended September 30, 2013 and 2012.

Currently, our primary sources of liquidity are cash flows from operations, borrowings under our Credit Agreement (approximately $18.8 million of borrowing availability as of September 30, 2013) and a potential sale/leaseback arrangement involving our Pearland, Texas facility of approximately $24.0 million we anticipate closing during the fourth quarter of 2013.

On October 4, 2013, we entered into a First Amendment to the Amended and Restated Credit Agreement, dated as of October 4, 2013 (the “Amendment”), by and among Merit, certain subsidiaries of Merit, the Lenders and Wells Fargo as administrative agent for the Lenders. The Amendment sets forth the terms and conditions upon which Merit, Wells Fargo and the other parties to the Amendment have agreed to amend the Credit Agreement. Among other provisions, the Amendment provides for an increase in our borrowing capacity under the Credit Agreement by $40.0 million, adjusts the maximum Consolidated Total Leverage Ratio (as defined in the Credit Agreement) to be no greater than 4.75 to 1 as of any fiscal quarter ending during 2013, no greater than 4.00 to 1 at March 31, 2014, no greater than 3.75 to 1 at June 30, 2014, no greater than 3.50 to 1 at September 30, 2014, and no greater than 3.25 to 1 at December 31, 2014. The maximum ratio thereafter is unchanged. The Amendment also includes an expanded applicable margin table with pricing levels for the higher allowable maximum Consolidated Total Leverage Ratio.

We currently believe that our existing cash balances, anticipated future cash flows from operations, borrowings under the Credit Agreement, as amended, and the potential sale/leaseback of our Pearland, Texas facility will be adequate to fund our current and currently planned future operations for the next twelve months and the foreseeable future.

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CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Critical Accounting Policies

The SEC has requested that all registrants address their most critical accounting policies. The SEC has indicated that a “critical accounting policy” is one which is both important to the representation of the registrant’s financial condition and results and requires management’s most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. We base our estimates on past experience and on various other assumptions our management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results will differ, and may differ materially from these estimates under different assumptions or conditions. Additionally, changes in accounting estimates could occur in the future from period to period. Our management has discussed the development and selection of our most critical financial estimates with the audit committee of our Board of Directors. The following paragraphs identify our most critical accounting policies:

Inventory Obsolescence. Our management reviews on a quarterly basis inventory quantities on hand for unmarketable and/or slow-moving products that may expire prior to being sold. This review includes quantities on hand for both raw materials and finished goods. Based on this review, we provide adjustments for any slow-moving finished good products or raw materials that we believe will expire prior to being sold or used to produce a finished good and any products that are unmarketable. This review of inventory quantities for unmarketable and/or slow moving products is based on forecasted product demand prior to expiration lives.

Forecasted unit demand is derived from our historical experience of product sales and production raw material usage. If market conditions become less favorable than those projected by our management, additional inventory write-downs may be required. During the years ended December 31, 2012, 2011 and 2010, we recorded obsolescence expense of approximately $2.3 million, $1.5 million, and $1.9 million, respectively, and wrote off approximately $1.5 million, $1.1 million, and $1.1 million, respectively. Based on this historical trend, we believe that our inventory balances as of September 30, 2013 have been accurately adjusted for any unmarketable and/or slow moving products that may expire prior to being sold.

Allowance for Doubtful Accounts. A majority of our receivables are with hospitals which, over our history, have demonstrated favorable collection rates. Therefore, we have experienced relatively minimal bad debts from hospital customers. In limited circumstances, we have written off bad debts as the result of the termination of our business relationships with foreign distributors. The most significant write-offs over our history have come from U.S. custom procedure tray manufacturers who bundle our products in surgical trays.

We maintain allowances for doubtful accounts relating to estimated losses resulting from the inability of our customers to make required payments. The allowance is based upon historical experience and a review of individual customer balances. If the financial condition of our customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required.

Stock-Based Compensation. We measure stock-based compensation cost at the grant date based on the value of the award and recognize the cost as an expense over the term of the vesting period. Judgment is required in estimating the fair value of share-based awards granted and their expected forfeiture rate. If actual results differ significantly from these estimates, stock-based compensation expense and our results of operations could be materially impacted.

Income Taxes. Under our accounting policies, we initially recognize a tax position in our financial statements when it becomes more likely than not that the position will be sustained upon examination by the tax authorities. Such tax positions are initially and subsequently measured as the largest amount of tax positions that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authorities assuming full knowledge of the position and all relevant facts. Although we believe our provisions for unrecognized tax positions are reasonable, we can make no assurance that the final tax outcome of these matters will not be different from that which we have reflected in our income tax provisions and accruals. The tax law is subject to varied interpretations, and we have taken positions related to certain matters where the law is subject to interpretation. Such differences could have a material impact on our income tax provisions and operating results in the period(s) in which we make such determination.

Goodwill and Intangible Assets Impairment and Contingent Consideration. We test our goodwill balances for impairment as of July 1 of each year, or whenever impairment indicators arise. Over the last several years we have completed a significant number of acquisitions that have increased the value of our goodwill balance, intangible assets and contingent consideration. If we are unable to realize competitive advantages, synergies, forecasted projections or other benefits anticipated in connection with any of

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these acquisitions, we may be required to adjust the carrying amount of these assets. We utilize several reporting units in evaluating goodwill for impairment. We assess the estimated fair value of reporting units based on discounted future cash flows. If the carrying amount of a reporting unit exceeds the fair value of the reporting unit, an impairment charge is recognized in an amount equal to the excess of the carrying amount of the reporting unit goodwill over implied fair value of that goodwill. This analysis requires significant judgments, including estimation of future cash flows and the length of time they will occur, which is based on internal forecasts, and a determination of a discount rate based on our weighted average cost of capital. During our annual test of goodwill balances in 2013 and 2012, which was completed during the third quarter of 2013 and 2012, we determined that the fair value of each reporting unit with goodwill exceeded the carrying amount by a significant amount.

We evaluate the recoverability of an intangible asset whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. This analysis requires similar significant judgments as those discussed above regarding goodwill, except that undiscounted cash flows are compared to the carrying amount of intangible assets to determine if impairment exists. All of our intangible assets are subject to amortization.

Contingent consideration is an obligation by the buyer to transfer additional assets or equity interests to the former owner upon reaching certain performance targets. Certain of our business combinations involve the potential for the payment of future contingent consideration, generally based on a percentage of future product sales or upon attaining specified future revenue milestones. In connection with a business combination, any contingent consideration is recorded on the acquisition date based upon the consideration expected to be transferred in the future. We utilize a discounted cash flow method, which includes a probability factor for milestone payments, in valuing the contingent consideration liability. We re-measure the estimated liability each quarter and record changes in the estimated fair value through operating expense in our consolidated statements of income. Significant increases or decreases in our estimates could result in the estimated fair value of our contingent consideration liability, as the result of changes in the timing and amount of revenue estimates, as well as changes in the discount rate or periods.

During the three and nine months ended September 30, 2013, we reduced the amount of the contingent consideration liability related to the Ostial PRO Stent Positioning System, which we acquired in January 2012, by approximately $3.8 million. Under the terms of the Asset Purchase Agreement we executed with Ostial, we are obligated to make contingent purchase price payments based on a percentage of future sales of products utilizing the Ostial PRO Stent Positioning System. The adjustment to the contingent consideration liability triggered a review of our Ostial intangible assets, which resulted in an intangible asset write-down of approximately $8.1 million related to those assets. These adjustments reduced operating income for each of the three and nine-month periods ended September 30, 2013 by approximately $4.3 million, or approximately $2.7 million net of tax. The reduction of the Ostial contingent consideration liability and the impairment of the Ostial intangible assets was the result of our assessment that we are not likely to generate the level of revenues from sales of the Ostial PRO Stent Positioning System that we anticipated at the acquisition date.

ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our principal market risk relates to changes in the value of the Euro and Great Britain Pound ("GBP") relative to the value of the U.S. Dollar. We also have a limited market risk relating to the Chinese Yuan, Hong Kong Dollar and the Swedish and Danish Kroner. Our consolidated financial statements are denominated in, and our principal currency is, the U.S. Dollar. For the quarter ended September 30, 2013, a portion of our revenues (approximately $19.8 million, representing approximately 17.1% of our aggregate revenues), was attributable to sales that were denominated in foreign currencies. All other international sales were denominated in U.S. Dollars. Certain of our expenses for the quarter ended September 30, 2013 were also denominated in foreign currencies, which partially offset risks associated with fluctuations of exchange rates between foreign currencies on the one hand, and the U.S. Dollar on the other hand. During the quarter ended September 30, 2013, fluctuations in the exchange rate between our foreign currencies against the U.S. Dollar resulted in an increase in our gross revenues of approximately $347,000, or .30%, and a decrease in our gross profit by .26%.

On August 31, 2013, we forecasted a net exposure for September 30, 2013 (representing the difference between Euro and GBP-denominated receivables and Euro-denominated payables) of approximately 411,000 Euros and 408,000 GBPs. In order to partially offset such risks at August 31, 2013, we entered into a 30-day forward contract for the Euro and GBP with notional amounts of approximately 411,000 Euros and 408,000 GBPs. We enter into similar transactions at various times during the year to partially offset exchange rate risks we bear throughout the year. These contracts are marked to market at each month-end. The effect on our consolidated statements of income for the three months ended September 30, 2013 and 2012 of all forward contracts, and the fair value of our open positions as of September 30, 2013, were not material to our financial position.

As discussed in Note 9 to our consolidated financial statements, as of September 30, 2013, we had outstanding borrowings of approximately $251.2 million under the Credit Agreement. As part of our efforts to mitigate interest rate risk, on December 19, 2012, we entered into a $150.0 million pay-fixed, receive-variable interest rate swap with Wells Fargo to fix the one-month LIBOR

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rate at 0.98%. The variable portion of the interest rate swap is tied to the one-month LIBOR rate (the benchmark interest rate for the Credit Agreement). This instrument is intended to reduce our exposure to interest rate fluctuations and was not entered into for speculative purposes. Excluding the $146.3 million that is subject to a fixed rate under the interest rate swap and assuming the current level of borrowings remained the same, it is estimated that our interest expense and income before income taxes would change by approximately $1.1 million annually for each one percentage point change in the average interest rate under these borrowings.

In the event of an adverse change in interest rates, our management would likely take actions to mitigate our exposure. However, due to the uncertainty of the actions that would be taken and their possible effects, additional analysis is not possible at this time. Further, such analysis would not consider the effects of the change in the level of overall economic activity that could exist in such an environment.

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ITEM 4.  CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as of September 30, 2013. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Based on that evaluation, our chief executive officer and chief financial officer concluded that our disclosure controls and procedures are designed at a reasonable assurance level and are effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms, and that such information is accumulated and communicated to our management, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

Except as set forth below, during the quarter ended September 30, 2013, there were no changes in our internal control over financial reporting that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934).

On December 19, 2012, we completed our acquisition of Thomas Medical. We are currently integrating policies, processes, employees, technology and operations of Thomas Medical. Management will continue to evaluate our internal control over financial reporting as we execute acquisition integration activities.

PART II - OTHER INFORMATION

ITEM 1.   LEGAL PROCEEDINGS

In the ordinary course of business we are involved in litigation and claims which management believes will not have a material effect on our financial position or results of operations.

ITEM 1A.   RISK FACTORS

In addition to other information set forth in this Report, you should carefully consider the factors discussed in Part I, Item 1A. "Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2012, which could materially affect our business, financial condition or future results. The risks described in our Annual Report on Form 10-K are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially and adversely affect our business, financial condition and/or operating results.

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ITEM  6.  EXHIBITS

Exhibit No.	Description
10.1	First Amendment to Amended and Restated Credit Agreement, dated as of October 4, 2013, by and among Merit Medical Systems, Inc., certain subsidiaries of Merit Medical Systems, Inc., the Lenders identified therein and Wells Fargo as administrative agent for the Lenders**
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following financial information from the quarterly report on Form 10-Q of Merit Medical Systems, Inc. for the quarter ended September 30, 2013, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Statements of Income, (ii) Consolidated Balance Sheets, (iii) Consolidated Statements of Comprehensive Income, (iv) Consolidated Statements of Cash Flows, and (v) Notes to the Consolidated Financial Statements

** Certain confidential portions of this exhibit were omitted. This exhibit, with the omitted information, has been filed separately with the SEC pursuant to an Application for Confidential Treatment under Rule 24b-2 under the Securities Exchange Act of 1934.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

MERIT MEDICAL SYSTEMS, INC.

REGISTRANT

Date:	November 12, 2013	/s/ FRED P. LAMPROPOULOS
		FRED P. LAMPROPOULOS PRESIDENT AND CHIEF EXECUTIVE OFFICER
Date:	November 12, 2013	/s/ KENT W. STANGER
		KENT W. STANGER CHIEF FINANCIAL OFFICER

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EX-10.1

CERTAIN PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED PURSUANT TO RULE 24B-2 AND ARE SUBJECT TO A CONFIDENTIAL TREATMENT REQUEST. COPIES OF THIS EXHIBIT CONTAINING THE OMITTED INFORMATION HAVE BEEN FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION. THE OMITTED PORTIONS OF THIS DOCUMENT ARE MARKED WITH A [***].

FIRST AMENDMENT TO

AMENDED AND RESTATED CREDIT AGREEMENT

Dated as of October 4, 2013

This FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) is by and among MERIT MEDICAL SYSTEMS, INC., a Utah corporation (the “Borrower”), certain subsidiaries of the Borrower party hereto (the “Subsidiary Guarantors”), the lenders who are party to this Amendment (the “Consenting Lenders”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banking association, as administrative agent for the Lenders (in such capacity, the “Administrative Agent”).

PRELIMINARY STATEMENTS

WHEREAS, the Borrower, the lenders party thereto (the “Lenders”), and the Administrative Agent entered into that certain Amended and Restated Credit Agreement dated as of December 19, 2012 (as amended hereby and as further amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”); and

WHEREAS, the Borrower has requested that the Administrative Agent and the Lenders agree to amend the Credit Agreement as specifically set forth herein and, subject to the terms of this Amendment, the Administrative Agent and the Consenting Lenders have agreed to grant such request of the Borrowers.

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto hereby agree as follows:

Section 1.Capitalized Terms. All capitalized terms not otherwise defined in this Amendment (including without limitation in the introductory paragraph and the Preliminary Statements hereto) shall have the meanings as specified in the Credit Agreement.

Section 2.Amendments to Credit Agreement. Subject to and in accordance with the terms and conditions set forth herein, the Administrative Agent and each of the Consenting Lenders hereby agrees as follows:

(a)Section 1.1 of the Credit Agreement is hereby amended by:

(i)inserting the following new definitions in appropriate alphabetical order:

(A)    ““Datascope Acquisition” means the acquisition by the Borrower of certain of the assets, including, without limitation, the medical devices known as the AIR-BAND and the SAFEGUARD and all of the intellectual property, technology, contracts, books, customer lists, inventory, molds, equipment, records, contract rights and other tangible and intangible personal property related thereto,

of Datascope Corp., a Delaware corporation, pursuant to the terms of the Datascope Acquisition Agreement.”

(B)    ““Datascope Acquisition Agreement” means that certain Asset Purchase Agreement (including all schedules and exhibits thereto), dated as of October 4, 2013, between Datascope Corp., a Delaware corporation, and the Borrower, as amended, restated, supplemented or otherwise modified in accordance with the terms hereof.”

(C)    [***]

(D)    ““First Amendment Effective Date” means October 4, 2013.”

(E)    ““Pearland Facility” means the Borrower’s manufacturing facility in Pearland, Texas.”

(F)    ““Pearland Sale-Leaseback” means that certain sale-leaseback transaction by and between the Borrower, as seller, and Woodbury Strategic Partners Fund, L.P., a Utah limited partnership, or any of its Affiliates, or any other third party reasonably satisfactory to the Administrative Agent, as buyer, in connection with the Pearland Facility; provided that (a) such sale is effected no later than March 31, 2014, (b) at the time of such sale-leaseback, no Default or Event of Default shall exist or would result from such sale-leaseback, (c) such sale is made for approximately $24,000,000, (d) the consideration received in connection with such sale shall be shall be no less than one hundred percent (100%) in cash, (e) the triple net base rent payable under such leaseback is not greater than 7.75% of the total purchase price in the initial year, subject to annual increases not greater than 2.5% each year thereafter, and (f) the requirements of Sections 2.4(d)(ii), Section 2.5(e) and 4.4(b) are complied with in connection therewith.”

(ii)amending the definition of “Applicable Margin” by deleting the table contained therein and the first paragraph following the table contained therein in their entirety and replacing such table and such first paragraph with the following:

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			Revolving Credit Loans		Term Loan
Pricing Level	Consolidated Total Leverage Ratio	Commitment Fee	LIBOR +	Base Rate +	LIBOR +	Base Rate +
I	Less than 2.25 to 1.00	0.20%	1.25%	0.25%	1.25%	0.25%
II	Less than 2.50 to 1.00 but greater than or equal to 2.25 to 1.00	0.20%	1.50%	0.50%	1.50%	0.50%
III	Less than 2.75 to 1.00 but greater than or equal to 2.50 to 1.00	0.30%	1.75%	0.75%	1.75%	0.75%
IV	Less than 3.25 to 1.00 but greater than or equal to 2.75 to 1.00	0.40%	2.00%	1.00%	2.00%	1.00%
V	Less than 3.50 to 1.00 but greater than or equal to 3.25 to 1.00	0.40%	2.25%	1.25%	2.25%	1.25%
VI	Less than 3.75 to 1.00 but greater than or equal to 3.50 to 1.00	0.40%	2.75%	1.75%	2.75%	1.75%
VII	Less than 4.00 to 1.00 but greater than or equal to 3.75 to 1.00	0.50%	3.00%	2.00%	3.00%	2.00%
VIII	Less than 4.50 to 1.00 but greater than or equal to 4.00 to 1.00	0.50%	3.25%	2.25%	3.25%	2.25%
IX	Greater than or equal to 4.50 to 1.00	0.50%	3.50%	2.50%	3.50%	2.50%

The Applicable Margin shall be determined and adjusted quarterly on the date (each a “Calculation Date”) ten (10) Business Days after the day by which the Borrower is required to provide an Officer’s Compliance Certificate pursuant to Section 8.2 for the most recently ended fiscal quarter of the Borrower; provided that (a) the Applicable Margin shall be based on Pricing Level VIII from the First Amendment Effective Date until the first Calculation Date occurring after the fiscal quarter ending December 31, 2013 and, thereafter the Pricing Level shall be determined by reference to the Consolidated Total Leverage Ratio as of the last day of the most recently ended fiscal quarter of the Borrower preceding the applicable Calculation Date (provided that if, based on the Officer’s Compliance Certificate as required by Section 8.2 for the fiscal quarter ending September 30, 2013, Pricing Level IX would be applicable, the Applicable Margin shall be based on Pricing Level IX until the next Calculation Date), and (b) if the Borrower fails to provide the Officer’s Compliance Certificate as required by Section 8.2 for the most recently ended fiscal quarter of the Borrower preceding the applicable Calculation Date, the Applicable Margin from such Calculation Date shall be based on Pricing Level IX until such time as an appropriate Officer’s Compliance Certificate is provided, at which time

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the Pricing Level shall be determined by reference to the Consolidated Total Leverage Ratio as of the last day of the most recently ended fiscal quarter of the Borrower preceding such Calculation Date. The applicable Pricing Level shall be effective from one Calculation Date until the next Calculation Date. Any adjustment in the Pricing Level shall be applicable to all Extensions of Credit then existing or subsequently made or issued.

(iii)amending the definition of “Capital Expenditures” by inserting the words “and the Datascope Acquisition” immediately following the reference to “(excluding any Permitted Acquisition” and prior to the reference to “)”.

(iv)amending the definition of “Consolidated EBITDA” by inserting (A) the words “and the Datascope Acquisition” immediately following the reference to “(other than the Thomas Acquisition”) contained in clause (b)(vii) therein and (B) the following sentence at the end of such definition:

“Notwithstanding the foregoing or anything to the contrary contained herein, for purposes of this definition, the Pro Forma Basis adjustment for the Datascope Acquisition for each of the fiscal quarters ended December 31, 2012, March 31, 2013, June 30, 2013 and September 30, 2013 shall be deemed to equal the amount for each such fiscal quarter set forth on Schedule 1.2.”

(v)amending the definition of “Excess Cash Flow” by (A) deleting the words “and Permitted Acquisitions” contained in clause (i)(A) therein and replacing them with “, Permitted Acquisitions and the Datascope Acquisition”, (B) deleting the words “or Permitted Acquisitions which, in either case” contained in clause (i)(B) therein and replacing them with “, Permitted Acquisitions or the Datascope Acquisition which, in each case”, and (C) inserting the words “, the Datascope Acquisition” immediately following the reference to “Permitted Acquisition” contained in clause (i)(C) therein.

(vi)amending the definition of “Pro Forma Basis” by inserting the words “and the Datascope Acquisition” immediately following the words “in the case of a Permitted Acquisition” at the beginning of clause (a)(ii) therein.

(vii)amending the definition of “Revolving Credit Commitment” by deleting the last sentence of such definition in its entirety and replacing it with the following:

“The aggregate Revolving Credit Commitment of all the Revolving Credit Lenders on the First Amendment Effective Date shall be $215,000,000.”

(viii)amending the definition of “Specified Transactions” by deleting the “.” at the end of such definition and replacing it with the following:

“and (f) the Datascope Acquisition.”

(ix)amending the definition of “Swingline Commitment” by deleting such definition in its entirety and replacing it with the following:

““Swingline Commitment” means the lesser of (a) $215,000,000 and (b) the Revolving Credit Commitment.”

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(x)amending the definition of “Transaction Costs” by inserting the words (A) “and, solely with respect to clause (vii) of the definition of “Consolidated EBITDA”, the Datascope Acquisition” immediately following the reference to “Permitted Acquisition” contained in clause (a) therein and (B) “and, solely with respect to clause (vii) of the definition of “Consolidated EBITDA”, the Datascope Acquisition” immediately following the parenthetical contained in clause (b) therein.

(b)Section 2.4(d) of the Credit Agreement is hereby amended by deleting such Section in its entirety and replacing it with the following:

“(d)    Prepayment of Revolving Credit Loans in connection with Mandatory Prepayments.

(i)    Except as otherwise provided in clause (ii) below, in the event that:

(A)     proceeds remain after the prepayments of Term Loan Facility pursuant to Section 4.4(b); or

(B)     the Revolving Extensions or Credit are required to be directly prepaid pursuant to Sections 4.4(b)(iii) and 4.4(b)(vi) in connection with [***];

the amount of such excess proceeds shall be used on the date of the required prepayment under Section 4.4(b) to prepay the outstanding principal amount of the Revolving Extensions of Credit, without a corresponding reduction of the Revolving Credit Commitment, with remaining proceeds, if any, refunded to the Borrower.

(ii)    The outstanding principal amount of the Revolving Extensions of Credit shall be prepaid, with a corresponding reduction of the Revolving Credit Commitment as required pursuant to Section 2.5(e), in connection with the Pearland Sale-Leaseback.

(iii)    Each prepayment pursuant to this subsection (d) shall be applied first, to the principal amount of outstanding Swingline Loans until paid in full, second to the principal amount of outstanding Revolving Credit Loans until paid in full and third, with respect to any Letters of Credit then outstanding, a payment of cash collateral into a cash collateral account opened by the Administrative Agent, for the benefit of the Revolving Credit Lenders, in an amount equal to the aggregate L/C Obligations then outstanding (such cash collateral to be applied in accordance with Section 12.2(b)).”

(c)Section 2.5 of the Credit Agreement is hereby amended by (i) re-numbering subsections “(b)” and “(c)” thereof as subsections “(c)” and “(d)”, respectively and (ii) inserting the following new subsections (b) and (e) in appropriate alphabetical order:

“(b)    Scheduled Reduction.     The Revolving Credit Commitment shall be automatically and permanently reduced, without premium or penalty, to (i) $190,000,000 on March 31, 2014 and (ii) $175,000,000 on October 1, 2014; provided that no such reduction to the Revolving Credit Commitment shall be required on the foregoing dates to the extent that the Revolving Credit Commitment has been already reduced to, or below, the applicable

5

amount set forth above pursuant to Sections 2.5(a) or 2.5(e). The reductions of the Revolving Credit Commitment shall be applied to the Revolving Credit Commitment of each Revolving Credit Lender according to its Revolving Credit Commitment Percentage. All Commitment Fees accrued until the effective date of any termination of the Revolving Credit Commitment shall be paid on the effective date of such termination.”

“(e)    Mandatory Reduction.     The Revolving Credit Commitment shall be automatically and permanently reduced pursuant to, and in accordance with, Section 4.4(b)(vi) in connection with the Pearland Sale-Leaseback.”

(d)Section 4.4 of the Credit Agreement is hereby amended by

(i)inserting the following sentence at the end of subsection (b)(ii) thereof:

“Notwithstanding anything to the contrary in this Section 4.4(b)(ii), at any time on or before October 1, 2014, the Borrower shall have the right ,within five (5)Business Days after the date of receipt of Net Cash Proceeds from any Equity Issuance,to apply all or any portion of such Net Cash Proceeds to permanently reduce the Revolving Credit Commitment pursuant to Section 2.5(a); provided that, to the extent that the Borrower elects to apply less than fifty percent (50%) of Net Cash Proceeds from any such Equity Issuance to permanently reduce the Revolving Credit Commitment pursuant to Section 2.5(a), the difference between fifty percent (50%) of Net Cash Proceeds from any such Equity Issuance and the amount applied to permanently reduce the Revolving Credit Commitment pursuant to Section 2.5(a) shall be subject to the mandatory prepayment set forth in this Section 4.4(b)(ii).”

(ii)deleting subsection (b)(iii) in its entirety and replacing it with the following:

“(iii)    Asset Dispositions. The Borrower shall make mandatory principal prepayments of the Loans in the manner set forth in clause (vi) below in amounts equal to one hundred percent (100%) of the aggregate Net Cash Proceeds from any Asset Disposition (other than any Asset Disposition permitted pursuant to, and in accordance with, Section 11.5). Such prepayments shall be made within three (3) Business Days after the date of receipt of the Net Cash Proceeds of any such Asset Disposition by such Credit Party or any of its Subsidiaries; provided that, other than with respect to the Net Cash Proceeds of the Pearland Sale-Leaseback and [***], so long as no Event of Default has occurred and is continuing, no prepayment shall be required under this Section 4.4(b)(iii) to the extent that such Net Cash Proceeds are committed to be reinvested pursuant to a legally binding agreement in assets used or useful in the business of the Borrower and its Subsidiaries within nine (9) months after receipt of such Net Cash Proceeds and are thereafter actually reinvested in assets used or useful in the business of the Borrower and its Subsidiaries within twelve (12) months after receipt of such Net Cash Proceeds by such Credit Party or such Subsidiary; providedfurther that any portion of such Net Cash Proceeds not committed to be reinvested pursuant to a legally binding agreement within such nine (9) month period or actually reinvested within such twelve (12) month period shall be prepaid in accordance with this Section 4.4(b)(iii) on or before the last day of such applicable period.”

(iii)inserting the following sentence at the end subsection (b)(vi) thereof:

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“Notwithstanding anything to the contrary in this Section 4.4(b)(vi), within three (3) Business Days after the date of receipt of Net Cash Proceeds attributable to:

(A)     the Pearland Sale-Leaseback, one hundred percent (100%) of the aggregate Net Cash Proceeds from such sale shall be applied as follows: (1) first, to repay the Revolving Extensions of Credit pursuant to Section 2.4(d)(ii), with a corresponding reduction in the Revolving Credit Commitment pursuant to Section 2.5(e) and (2) second, to the extent of any excess, to reduce in inverse order to maturity the remaining scheduled principal installments of the Term Loan, pursuant to Section 4.3; and

(B)     [***]

(e)Section 7.24 of the Credit Agreement is hereby amended by deleting such Section in its entirety and replacing it with the following:

SECTION 7.24 Investment Bankers’ and Similar Fees. No Credit Party has any obligation to any Person in respect of any finders’, brokers’, investment banking or other similar fee in connection with any of the Transactions or the Datascope Acquisition.

(f)Section 9.12(b) of the Credit Agreement is hereby amended by deleting such Section in its entirety and replacing it with the following:

“Revolving Credit Loans, Swingline Loans or any Letter of Credit. The Borrower shall use the proceeds of the Revolving Credit Loans, Swingline Loans or any Letter of Credit (i) to finance a portion of the consideration payable in connection with the consummation of the transactions contemplated pursuant to the Thomas Purchase Agreement, (ii) to finance a portion of the consideration payable in connection with the consummation of the transactions contemplated pursuant to the Datascope Acquisition Agreement, (iii) to refinance certain Indebtedness of the Borrower and its Subsidiaries (after giving effect to the Thomas Acquisition and Datascope Acquisition) including, without limitation, the Existing Credit Agreement and (iv) for working capital and general corporate purposes of the Borrower and its Subsidiaries, including the payment of certain fees and expenses incurred in connection with the Transactions, the Datascope Acquisition, the Pearland Sale‑Leaseback, [***] and this Agreement.”

(g)Section 10.1 of the Credit Agreement is hereby amended by deleting the table contained therein in its entirety and replacing it with the following:

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Period	Maximum Ratio
First Amendment Effective Date through fiscal quarter ending December 31, 2013	4.75 to 1.00
Fiscal quarter ending March 31, 2014	4.00 to 1.00
Fiscal quarter ending June 30, 2014	3.75 to 1.00
Fiscal quarter ending September 30, 2014	3.50 to 1.00
Fiscal quarter ending December 31, 2014	3.25 to 1.00
Each fiscal quarter ending during Fiscal Year 2015	3.00 to 1.00
Each fiscal quarter ending during Fiscal Year 2016	2.75 to 1.00
Each fiscal quarter thereafter	2.50 to 1.00

(h)Section 11.3 of the Credit Agreement is hereby amended by (i) re-numbering the existing subsection “(h)” as subsection “(i)” and (ii) inserting the following new subsection (h) therein:

“(h)    the Datascope Acquisition; and”

(i)Section 11.5 of the Credit Agreement is hereby amended by (i) re-numbering the existing subsection “(j)” as subsection “(l)” and (ii) inserting the following new subsections (j) and (k) therein:

“(j)    the sale of the Pearland Facility pursuant to the Pearland Sale-Leaseback;

(k)    [***]; and”

(j)Section 11.12 of the Credit Agreement is hereby amended by adding the following at the end of the last sentence thereof:

“provided, however, the Pearland Sale‑Leaseback shall not be subject to the restrictions set forth in this Section 11.12.”

Section 3.Conditions of Effectiveness. The effectiveness of this Amendment shall be subject to the satisfaction of each of the following conditions precedent (provided that the parties hereto hereby agree that the amendment to Section 10.1, as set forth in Section 2(g) of this Amendment, shall be effective as of September 30, 2013):

(a)Executed Amendment. The Administrative Agent shall have received counterparts of this Amendment executed by the Borrower, each other Credit Party, the Administrative Agent and the Lenders;

(b)Officer’s Certificate. The Borrower shall have delivered to the Administrative Agent a certificate, in form and substance satisfactory to the Administrative Agent, from a Responsible Officer (solely in its capacity as a Responsible Officer) of the Borrower certifying that (i) since the

8

date of execution of the Datascope Acquisition Agreement, there has not occurred a Material Adverse Effect, (ii) the conditions set forth in Section 3 of this Amendment have been satisfied and (iii) the representations and warranties contained in Section 4 of this Amendment are true and correct;

(c)Certificates of Secretary and Organizational Documents. The Borrower shall have delivered to the Administrative Agent, with respect to each Credit Party, a certificate of a Responsible Officer of each such Person certifying as to the incumbency and genuineness of the signature of each officer of such Person executing this Amendment and certifying that attached thereto is a true, correct and complete copy of:

(A)  (1) articles or certificate of incorporation or formation of such Person and all amendments thereto, certified as of a recent date by the appropriate Governmental Authority in its jurisdiction of incorporation or formation and (2) the bylaws or other governing document of such Person as in effect on the First Amendment Effective Date or, in each case, that no changes have been made to the articles or certificate of incorporation or formation and/or bylaws or other governing document, as applicable, since the same was delivered pursuant to Section 6.1(b)(ii) of the Credit Agreement;

(B)     resolutions duly adopted by the board of directors (or other governing body) of such Person authorizing the transactions contemplated hereunder and the execution, delivery and performance of this Amendment; and

(C)     certificates as of a recent date of the good standing of each such Person under the laws of its jurisdiction of incorporation or formation and, to the extent requested by the Administrative Agent, each other jurisdiction where such Person is qualified to do business;

(d)Opinions of Counsel. The Administrative Agent shall have received favorable opinions of counsel to the Credit Parties addressed to the Administrative Agent and the Lenders with respect to the Credit Parties, this Amendment and the transactions contemplated hereby and such other matters as the Lenders shall request;

(e)Collateral.

(i)Filings and Recordings. The Administrative Agent shall have received all filings and recordations that are necessary to perfect the security interests of the Administrative Agent, on behalf of the Secured Parties, in all assets acquired pursuant to the Datascope Acquisition, including, without limitation, all intellectual property acquired pursuant to the Datascope Acquisition, and the Administrative Agent shall have received evidence reasonably satisfactory to the Administrative Agent that upon such filings and recordations such security interests constitute valid and perfected first priority Liens thereon (subject to Permitted Liens);

(ii)Lien Searches. The Administrative Agent shall have received the results of a Lien search (including a search as to intellectual property matters), in form and substance reasonably satisfactory thereto, made against the assets acquired pursuant to the Datascope Acquisition under the Uniform Commercial Code (or applicable judicial docket) as in effect in each jurisdiction in which filings or recordations under the Uniform Commercial Code should be made to evidence or perfect security interests in all such assets, indicating among

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other things that each such asset is free and clear of any Lien (except for Permitted Liens); and

(iii)Lien Releases. To the extent that the results of any Lien search described in clause (ii) above identify any Lien (except for any Permitted Lien) on any assets acquired pursuant to the Datascope Acquisition, the Administrative Agent shall have received all filings and recordations necessary to evidence that such Lien has been discharged and released;

(f)Datascope Acquisition.

(i)The Administrative Agent shall have received a true, correct and fully executed copy of the Datascope Acquisition Agreement, together with all of the exhibits, schedules and annexes thereto, all of which shall be in form and substance reasonably satisfactory to the Administrative Agent;

(ii)The Datascope Acquisition shall be consummated in accordance with the Datascope Acquisition Agreement without giving effect to any amendments, modifications or waivers thereof that are materially adverse to the interests of the Lenders (as reasonably determined by the Administrative Agent), unless approved by the Administrative Agent;

(iii)Each of the representations made by Datascope Corp., a Delaware corporation, or its Subsidiaries or Affiliates or with respect to the assets to be acquired pursuant to the Datascope Acquisition Agreement that are material to the interests of the Lenders are accurate, but only to the extent that, in the event of a breach of such representations, the Borrower or its Affiliates have the right to terminate their respective obligations under the Datascope Acquisition Agreement or otherwise decline to close the Datascope Acquisition as a result of a breach of any such representations or any such representations not being accurate (determined without regard to any notice requirement); and

(iv)The aggregate purchase price for the Datascope Acquisition shall not exceed $27,500,000;

(g)Governmental and Third Party Approvals. The Credit Parties shall have received all governmental, shareholder and third party consents and approvals necessary in connection with this Amendment and the transactions contemplated hereby and all such governmental, shareholder and third party consents and approvals shall be in full force and effect;

(h)PATRIOT Act. At least five (5) Business Days prior to the date of effectiveness of this Amendment, the Borrower and each of the Subsidiary Guarantors shall have provided to the Administrative Agent and the Lenders the documentation and other information requested by the Administrative Agent in order to comply with requirements of the Act, applicable “know your customer” and anti-money laundering rules and regulations, but only to the extent that such documentation or other information was requested at least ten (10) Business Days prior to such date;

(i)Notice of Borrowing. The Administrative Agent shall have received a Notice of Borrowing from the Borrower in accordance with Section 2.3(a) of the Credit Agreement;

10

(j)Schedule 1.2 to Credit Agreement. The Administrative Agent shall have received Schedule 1.2 to the Credit Agreement in form and substance reasonably satisfactory to the Administrative Agent; and

(k)Payment of Fees. The Borrower shall have paid (A) to the Arranger and the Administrative Agent, for their own respective accounts, fees in the amounts and at the times specified in the separate fee letter agreement dated September 3, 2013 among the Borrower, the Administrative Agent and the Arranger, (B) all fees, charges and disbursements of counsel to the Administrative Agent (directly to such counsel if requested by the Administrative Agent) to the extent accrued and unpaid prior to or on the First Amendment Date, plus such additional amounts of such fees, charges and disbursements as shall constitute its reasonable estimate of such fees, charges and disbursements incurred or to be incurred by it through the closing proceedings (provided that such estimate shall not thereafter preclude a final settling of accounts between the Borrower and the Administrative Agent) and (C) to any other Person such amount as may be due thereto in connection with the transactions contemplated hereby, including all taxes, fees and other charges in connection with the execution, delivery, recording, filing and registration of any of the Loan Documents.

Section 4.Representations and Warranties. The Borrower and each Subsidiary Guarantor hereby represents and warrants to the Administrative Agent and the Lenders that:

(a)both before and after giving effect to this Amendment, the Datascope Acquisition and any Indebtedness incurred in connection herewith or therewith, each of the representations and warranties set forth in the Credit Agreement and the other Loan Documents is true, correct and complete in all material respects as of the date hereof, except for any representation and warranty made as of an earlier date, which representation and warranty shall remain true, correct and complete as of such earlier date; provided, that any representation or warranty that is qualified by materiality or by reference to Material Adverse Effect shall be true, correct and complete in all respects as of the date hereof;

(b)except to the extent a Default or Event of Default may have occurred under Section 12.1(d) of the Credit Agreement as a result of any breach of Section 10.1 of the Credit Agreement prior to giving effect to this Amendment, no Default or Event of Default has occurred or is continuing both before and after giving effect to this Amendment, the Datascope Acquisition and any Indebtedness incurred in connection herewith or therewith;

(c)it has the right, power and authority and has taken all necessary corporate and other action to authorize the execution, delivery and performance of this Amendment and each of the other documents executed in connection herewith to which it is a party in accordance with their respective terms and the transactions contemplated hereby; and

(d)this Amendment and each other document executed in connection herewith has been duly executed and delivered by the duly authorized officers of the Borrower and each Subsidiary Guarantor, and each such document constitutes the legal, valid and binding obligation of the Borrower and each Subsidiary Guarantor, enforceable in accordance with its terms, except as such enforceability may be limited by Debtor Relief Laws from time to time in effect which affect the enforcement of creditors’ rights in general and the availability of equitable remedies.

Section 5.Limited Effect. Except as expressly provided herein, the Credit Agreement and the other Loan Documents shall remain unmodified and in full force and effect. Except as expressly provided herein, this Agreement shall not be deemed (a) to be a waiver of, or consent to, or a modification or amendment

11

of, any other term or condition of the Credit Agreement or any other Loan Document, (b) to prejudice any right or rights which the Administrative Agent or the Lenders may now have or may have in the future under or in connection with the Credit Agreement or the other Loan Documents or any of the instruments or agreements referred to therein, as the same may be amended, restated, supplemented or modified from time to time, (c) to be a commitment or any other undertaking or expression of any willingness to engage in any further discussion with the Borrower, any of its Subsidiaries or any other Person with respect to any waiver, amendment, modification or any other change to the Credit Agreement or the Loan Documents or any rights or remedies arising in favor of the Lenders or the Administrative Agent, or any of them, under or with respect to any such documents or (d) to be a waiver of, or consent to or a modification or amendment of, any other term or condition of any other agreement by and among the Borrower or any of its Subsidiaries, on the one hand, and the Administrative Agent or any other Lender, on the other hand. References in the Credit Agreement to “this Agreement” (and indirect references such as “hereunder”, “hereby”, “herein”, “hereof” or other words of like import) and in any Loan Document to the “Credit Agreement” shall be deemed to be references to the Credit Agreement as modified hereby.

Section 6.Acknowledgement and Reaffirmation. Each Borrower and each Subsidiary Guarantor (a) agrees that the transactions contemplated by this Amendment shall not limit or diminish the obligations of such Person under, or release such Person from any obligations under, the Credit Agreement, the Guaranty Agreement, the Collateral Agreement and each other Security Document to which it is a party, (b) confirms and reaffirms its obligations under the Credit Agreement, the Guaranty Agreement, the Collateral Agreement and each other Security Document to which it is a party and (c) agrees that the Credit Agreement, the Guaranty Agreement, the Collateral Agreement and each other Security Document to which it is a party remain in full force and effect and are hereby reaffirmed.

Section 7.Costs, Expenses and Taxes. The Borrower agrees to pay on demand all reasonable out-of-pocket costs and expenses of the Administrative Agent in connection with the preparation, execution, delivery, administration, modification and amendment of this Amendment and the other instruments and documents to be delivered hereunder, including, without limitation, the reasonable fees and out-of-pocket expenses of counsel for the Administrative Agent with respect thereto and with respect to advising the Administrative Agent as to its rights and responsibilities hereunder and thereunder.

Section 8.Execution in Counterparts. This Amendment may be executed in counterparts (and by different parties hereto in different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract. Delivery of an executed counterpart of a signature page of this Amendment by facsimile or in electronic (i.e., “pdf” or “tif”) format shall be effective as delivery of a manually executed counterpart of this Amendment.

Section 9.Governing Law. This Amendment and any claim, controversy, dispute or cause of action (whether in contract or tort or otherwise) based upon, arising out of or relating to this Amendment and the transactions contemplated hereby and thereby shall be governed by, and construed in accordance with, the law of the State of New York.

Section 10.Entire Agreement. This Amendment and the other Loan Documents, and any separate letter agreements with respect to fees payable to the Administrative Agent, the Issuing Lender, the Swingline Lender and/or the Arranger, constitute the entire agreement among the parties relating to the subject matter hereof and supersede any and all previous agreements and understandings, oral or written, relating to the subject matter hereof.

[Signature Pages Follow]

12

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed by their respective officers thereunto duly authorized, as of the date first above written.

MERIT MEDICAL SYSTEMS, INC., as Borrower

By: /s/Fred P. Lampropoulos            

Name:    Fred P. Lampropoulos
Title: Chief Executive Officer

MERIT HOLDINGS, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President     

MERIT SENSOR SYSTEMS, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

MERIT SERVICES, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

BIOSPHERE MEDICAL, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

BSMD VENTURES, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

Merit Medical Systems, Inc.

First Amendment to the Amended and Restated Credit Agreement

Signature Page

BIOSPHERE MEDICAL JAPAN, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

THOMAS MEDICAL PRODUCTS, INC., as Subsidiary Guarantor

By: /s/Fred P. Lampropoulos            

Name:     Fred P. Lampropoulos
Title: President

Merit Medical Systems, Inc.

First Amendment to the Amended and Restated Credit Agreement

Signature Page

ADMINISTRATIVE AGENT AND LENDERS:

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Administrative Agent, Swingline Lender, Issuing Lender and Lender

By: /s/ Richard Lambert                

Name: Richard Lambert

Title: Senior Vice President

Merit Medical Systems, Inc.

First Amendment to the Amended and Restated Credit Agreement

Signature Page

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Fred P. Lampropoulos, certify that:

1.      I have reviewed this Quarterly Report on Form 10-Q (the “Report”) of Merit Medical Systems, Inc. (the “Registrant”);

2.      Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3.      Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Report;

4.      The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Report based on such evaluation; and

(d) disclosed in this Report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5.      The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 12, 2013

/s/ Fred P. Lampropoulos

Fred P. Lampropoulos

President and Chief Executive Officer

(principal executive officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Kent W. Stanger, certify that:

1.      I have reviewed this Quarterly Report on Form 10-Q (the “Report”) of Merit Medical Systems, Inc. (the “Registrant”);

2.      Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3.      Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Report;

4.      The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Report based on such evaluation; and

(d) disclosed in this Report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5.      The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 12, 2013

/s/ Kent W. Stanger

Kent W. Stanger

Chief Financial Officer

(principal financial officer)

EX-32.1

EXHIBIT 32.1

Certification of Principal Executive Officer

Pursuant to 18 U.S.C. Section 1350, as Adopted

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Merit Medical Systems, Inc. (the “Company”) for the quarter ended September 30, 2013 (the “Report”), I, Fred P. Lampropoulos, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)   The Report fully complies with the requirements of Section 13(a) or 15 (d) of the Securities Exchange Act of 1934; and

(2)   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 12, 2013	/s/ Fred P. Lampropoulos
	Fred P. Lampropoulos
	President and Chief Executive Officer
	(principal executive officer)

This certification accompanies the foregoing Report pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.  A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

Certification of Principal Executive Officer

Pursuant to 18 U.S.C. Section 1350, as Adopted

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Merit Medical Systems, Inc. (the “Company”) for the quarter ended September 30, 2013 (the “Report”), I, Kent W. Stanger, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)   The Report fully complies with the requirements of Section 13(a) or 15 (d) of the Securities Exchange Act of 1934; and

(2)   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 12, 2013	/s/ Kent W. Stanger
	Kent W. Stanger
	Chief Financial Officer
	(principal financial officer)

This certification accompanies the foregoing Report pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.  A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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Long-Term Debt

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt. We entered into an Amended and Restated Credit Agreement, dated as of December 19, 2012 (the “Credit Agreement”), with the lenders who are or may become party thereto (the "Lenders") and Wells Fargo Bank, National Association ("Wells Fargo"), as administrative agent for the Lenders. Pursuant to the terms of the Credit Agreement, the Lenders agreed to make revolving credit loans up to an aggregate amount of $175 million. The Lenders also made a term loan in the amount of $100 million, repayable in quarterly installments of $2.5 million until the maturity date of December 19, 2017, at which time the term loan and revolving credit loans, together with accrued interest thereon, will be due and payable. In addition, certain mandatory prepayments are required to be made upon the occurrence of certain events described in the Credit Agreement. Wells Fargo agreed to make swingline loans from time to time through the maturity date of December 19, 2017 in amounts equal to the difference between the amounts actually loaned by the Lenders and the aggregate revolving credit commitment. The Credit Agreement is collateralized by substantially all of our assets. As of September 30, 2013, Wells Fargo was the sole Lender under the Credit Agreement.

On December 19, 2017, all principal, interest and other amounts outstanding under the Credit Agreement are payable in full. At any time prior to the maturity date, we may repay any amounts owing under all revolving credit loans, term loans, and all swingline loans in whole or in part, subject to certain minimum thresholds, without premium or penalty, other than breakage costs.

The term loan and any revolving credit loans made under the Credit Agreement bear interest, at our election, at either (i) the base rate (described below) plus 0.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1), (ii) the London Inter-Bank Offered Rate (“LIBOR”) Market Index Rate (as defined in the Credit Agreement) plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1), or (iii) the LIBOR Rate (as defined in the Credit Agreement) plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1). Currently, the term loan and revolving credit loans under the Credit Agreement bear interest, at our election, at either (x) the base rate plus 1.25%, (y) the LIBOR Market Index Rate, plus 2.25%, or (z) the LIBOR Rate plus 2.25%. Swingline loans bear interest at the LIBOR Market Index Rate plus 1.25% (subject to adjustment if the Consolidated Total Leverage Ratio, as defined in the Credit Agreement, is at or greater than 2.25 to 1). Currently, swingline loans bear interest at the LIBOR Market Index Rate plus 2.25%. Interest on each loan featuring the base rate or the LIBOR Market Index Rate is due and payable on the last business day of each calendar month; interest on each loan featuring the LIBOR Rate is due and payable on the last day of each interest period selected by us when selecting the LIBOR Rate as the benchmark for interest calculation. For purposes of the Credit Agreement, the base rate means the highest of (i) the prime rate (as announced by Wells Fargo), (ii) the federal funds rate plus 0.50%, and (iii) LIBOR for an interest period of one month plus 1.00%. Our obligations under the Credit Agreement and all loans made thereunder are fully secured by a security interest in our assets pursuant to a separate collateral agreement entered into in conjunction with the Credit Agreement.

The Credit Agreement contains customary covenants, representations and warranties and other terms customary for revolving credit loans of this nature. In this regard, the Credit Agreement requires us to not, among other things, (a) permit the Consolidated Total Leverage Ratio (as defined in the Credit Agreement) to be greater than 3.5 to 1 as of any fiscal quarter ending during 2013, greater than 3.35 to 1 as of any fiscal quarter ending during 2014, greater than 3 to 1 as of any fiscal quarter ending during 2015, greater than 2.75 to 1 as of any fiscal quarter ending during 2016, and greater than 2.5 to 1 as of any fiscal quarter ending thereafter; (b) for any period of four consecutive fiscal quarters, permit the ratio of Consolidated EBITDA (as defined in the Credit Agreement and subject to certain adjustments) to Consolidated Fixed Charges (as defined in the Credit Agreement) to be less than 1.75 to 1; (c) subject to certain adjustments, permit Consolidated Net Income (as defined in the Credit Agreement) for certain periods to be less than $0; or (d) subject to certain conditions and adjustments, permit the aggregate amount of all Facility Capital Expenditures (as defined in the Credit Agreement) in any fiscal year beginning in 2013 to exceed $30 million. Additionally, the Credit Agreement contains various negative covenants with which we must comply, including, but not limited to, limitations respecting: the incurrence of indebtedness, the creation of liens or pledges on our assets, mergers or similar combinations or liquidations, asset dispositions, the repurchase or redemption of equity interests and debt, the issuance of equity, the payment of dividends and certain distributions, the entrance into related party transactions and other provisions customary in similar types of agreements.

We had originally entered into an unsecured credit agreement, dated September 30, 2010, with certain lenders who were or became party thereto and Wells Fargo, as administrative agent for the lenders. Pursuant to the terms of that credit agreement, the lenders agreed to make revolving credit loans up to an aggregate amount of $125 million. Wells Fargo also agreed to make swingline loans from time to time through the maturity date of September 10, 2015 in amounts equal to the difference between the amount actually loaned by the lenders and the aggregate credit agreement. The unsecured credit agreement was amended and restated as of December 19, 2012, as the Credit Agreement.

In summary, principal balances under our long-term debt as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Term loan	$	95,000	$	100,000
Revolving credit loans	156,157		137,566
Total long-term debt	251,157		237,566
Less current portion	10,000		10,000
Long-term portion	$	241,157	$	227,566

Future minimum principal payments on our long-term debt as of September 30, 2013, were as follows (in thousands):

Years Ending	Future Minimum
December 31	Principal Payments
Remaining 2013	$	2,500
2014	10,000
2015	10,000
2016	10,000
2017	218,657
Total future minimum principal payments	$	251,157

As of September 30, 2013, we had available borrowings under the Credit Agreement of approximately $18.8 million. Our interest rate under the Credit Agreement as of September 30, 2013 was a fixed rate of 3.23% on approximately $146.3 million as a result of an interest rate swap, a variable floating rate of 2.44% on approximately $104.7 million and a variable floating rate of 2.50% on approximately $157,000. Our interest rate as of December 31, 2012 was a fixed rate of 2.98% on $150.0 million, a fixed rate of 2.22% on $87.0 million and a variable floating rate of 2.31% on approximately $566,000.

On October 4, 2013, we entered into a First Amendment to the Credit Agreement, which substantially modified certain terms and conditions of the Credit Agreement. Those modifications are discussed below in Note 14.

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CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
NET SALES	$ 115,210	$ 95,907	$ 329,033	$ 292,057
COST OF SALES	64,180	50,572	188,025	155,528
GROSS PROFIT	51,030	45,335	141,008	136,529
OPERATING EXPENSES:
Selling, general, and administrative	31,350	28,880	95,002	88,638
Research and development	7,308	7,098	25,064	20,130
Write-off of patents and intangible assets	8,116	17	8,169	27
Fair value adjustments recorded to income during the period	(4,108)	0	(4,075)	0
Acquired in-process research and development	0	275	0	2,450
Total operating expenses	42,639	36,253	124,080	111,218
INCOME FROM OPERATIONS	8,391	9,082	16,928	25,311
OTHER INCOME (EXPENSE):
Interest income	69	57	200	176
Interest expense	(1,916)	(128)	(5,297)	(352)
Other income (expense)	(104)	26	(174)	633
Other income (expense) — net	(1,951)	(45)	(5,271)	457
INCOME BEFORE INCOME TAXES	6,440	9,037	11,657	25,768
INCOME TAX EXPENSE	833	1,811	1,627	6,699
NET INCOME	5,607	7,226	10,030	19,069
EARNINGS PER COMMON SHARE:
Basic (in dollars per share)	$ 0.13	$ 0.17	$ 0.24	$ 0.45
Diluted (in dollars per share)	$ 0.13	$ 0.17	$ 0.23	$ 0.45
AVERAGE COMMON SHARES:
Basic (in shares)	42,596	42,202	42,560	42,087
Diluted (in shares)	42,872	42,692	42,793	42,536
Ostial Solutions, LLC [Member]
OPERATING EXPENSES:
Write-off of patents and intangible assets	$ 8,089	$ 0	$ 8,089	$ 0

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Inventories

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Inventories

Inventories. Inventories are stated at the lower of cost or market. Inventories at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Finished goods	$	37,196	$	48,233
Work-in-process	9,782		6,051
Raw materials	34,079		30,315
Total	$	81,057	$	84,599

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Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Stock-based compensation expense before income taxes for the three and nine-month periods ended September 30, 2013 and 2012 consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of goods sold	$	18	$	49	$	98	$	190
Research and development	20		26		69		93
Selling, general, and administrative	251		354		905		1,171
Stock-based compensation expense before income taxes	$	289	$	429	$	1,072	$	1,454

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

During the three and nine-month periods ended September 30, 2013, we granted awards representing 172,500 and 347,500 shares, respectively, of our common stock. During the three and nine-month periods ended September 30, 2012, we granted awards representing 7,500 and 127,500 shares of common stock, respectively. We use the Black-Scholes methodology to value stock-based compensation expense for options. In applying the Black-Scholes methodology to our outstanding option grants, we used the following assumptions:

	Nine Months Ended
	September 30,
	2013	2012
Risk-free interest rate	0.65% - 1.16%	0.54% - 0.95%
Expected option life	4.2 - 6.0 years	4.2 - 6.0 years
Expected dividend yield	—	—
Expected price volatility	34.08% - 41.67%	42.01% - 44.56%

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Derivatives

9 Months Ended

Sep. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Derivatives.

Interest Rate Swap.  On December 19, 2012, we entered into a $150.0 million pay-fixed, receive-variable interest rate swap with Wells Fargo to fix the one-month LIBOR rate at 0.98%. The variable portion of the interest rate swap is tied to the one-month LIBOR rate (the benchmark interest rate for the Credit Agreement). The interest rates under both the interest rate swap and the underlying debt are reset, the swap is settled with the counterparty, and interest is paid, on a monthly basis. The interest rate swap is scheduled to expire on December 19, 2017. As of September 30, 2013, this interest rate swap qualified as a cash flow hedge. During the three and nine-month periods ended September 30, 2013, the amount reclassified from accumulated other comprehensive income to earnings due to hedge effectiveness was not material. The fair value of our cash flow hedge at September 30, 2013 was an asset of approximately $745,000, which was offset by approximately $290,000 of deferred tax liability.

Foreign Currency Forward Contracts. On August 31, 2013, we forecasted a net exposure for September 30, 2013 (representing the difference between Euro and GBP-denominated receivables and Euro-denominated payables) of approximately 411,000 Euros and 408,000 GBPs. In order to partially offset such risks at August 31, 2013, we entered into a 30-day forward contract for the Euro and GBP with notional amounts of approximately 411,000 Euros and 408,000 GBPs. We enter into similar transactions at various times to partially offset exchange rate risks we bear. These contracts are marked to market at each month-end. The effect on our consolidated statements of income for the three and nine-month periods ended September 30, 2013 and 2012 of all forward contracts, and the fair value of our open positions as of September 30, 2013, were not material to our financial position.

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Goodwill and Intangible Assets (Amortization Expense) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Aggregate amortization expense	$ 3,400,000	$ 1,900,000	$ 10,400,000	$ 5,700,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Remaining 2013	3,363,000		3,363,000
2014	12,684,000		12,684,000
2015	12,140,000		12,140,000
2016	11,515,000		11,515,000
2017	$ 11,150,000		$ 11,150,000

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Income Taxes (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	12.90%	20.00%	14.00%	26.00%

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Financial information relating to our reportable operating segments and reconciliations to the consolidated totals is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2013		2012			2013		2012
Revenues
Cardiovascular	$	110,859	$	92,106		$	316,566	$	280,336
Endoscopy	4,351		3,801			12,467		11,721
Total revenues	115,210		95,907			329,033		292,057
Operating income (loss)
Cardiovascular	7,753		9,169			16,031		26,005
Endoscopy	638		(87		)	897		(694		)
Total operating income	$	8,391	$	9,082		$	16,928	$	25,311

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Acquisitions (Tables)

9 Months Ended

Sep. 30, 2013

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information

The following table summarizes our unaudited consolidated results of operations for the three and nine-month periods ended September 30, 2012, as well as unaudited pro forma consolidated results of operations as though the Thomas Medical and MediGroup acquisitions had occurred on January 1, 2012 (in thousands, except per common share amounts):

	Three Months Ended				Nine Months Ended
	September 30, 2012				September 30, 2012
	As Reported		Pro Forma		As Reported		Pro Forma
Net sales	$	95,907	$	106,600	$	292,057	$	320,843
Net income	7,226		8,707		19,069		22,007
Earnings per common share:
Basic	$	0.17	$	0.21	$	0.45	$	0.52
Diluted	$	0.17	$	0.20	$	0.45	$	0.52

Thomas Medical Products, Inc [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The total purchase price was preliminarily allocated as follows (in thousands):

Assets Acquired
Trade receivables	$	6,507
Inventories	5,078
Prepaid expenses	340
Property and equipment	2,685
Intangibles
Developed technology	43,000
Non-compete agreements	500
Customer lists	5,000
Trademarks	1,400
Goodwill	102,788
Total assets acquired	167,298
Liabilities Assumed
Trade payables	588
Accrued expenses	1,094
Total liabilities assumed	1,682
Net assets acquired, net of cash acquired of $1,829	$	165,616

MediGroup [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The total purchase price, which includes the contingent consideration liability described above, was preliminarily allocated as follows (in thousands):

Assets Acquired
Inventories	$	263
Property and equipment	79
Intangibles
Developed technology	2,000
Non-compete agreements	210
Customer lists	110
Trademarks	80
Goodwill	1,697
Total assets acquired	$	4,439

Ostial Solutions, LLC [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The total purchase price, which includes the contingent consideration liability described above, was allocated as follows (in thousands):

Assets Acquired
Intangibles
Developed technology	$	10,500
Customer lists	600
Trademark	110
Non-compete agreements	10
Goodwill	9,580
Total assets acquired	$	20,800

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Fair Value Measurements (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended						3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Other Long-Term Obligations [Member]	Dec. 31, 2012 Other Long-Term Obligations [Member]	Sep. 30, 2013 Accrued Expenses [Member]	Dec. 31, 2012 Accrued Expenses [Member]	Sep. 30, 2013 Ostial Solutions, LLC [Member]	Sep. 30, 2012 Ostial Solutions, LLC [Member]	Sep. 30, 2013 Ostial Solutions, LLC [Member]	Sep. 30, 2012 Ostial Solutions, LLC [Member]	Sep. 30, 2013 Developed Technology Rights [Member] Ostial Solutions, LLC [Member]	Sep. 30, 2013 Other Intangible Assets [Member] Ostial Solutions, LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability in other long-term obligations					$ 2,300,000	$ 5,900,000
Contingent consideration liability in accrued expenses							214,000	723,000
Reductions to contingent consideration liability											3,800,000
Write-off of patents and intangible assets	8,116,000	17,000	8,169,000	27,000					8,089,000	0	8,089,000	0
Finite-lived Intangible Assets, Fair Value Disclosure													$ 1,500,000	$ 160,000

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Acquisitions (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	1 Months Ended		12 Months Ended	0 Months Ended													1 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 19, 2012 Thomas Medical Products, Inc [Member]	Sep. 30, 2013 Thomas Medical Products, Inc [Member]	Sep. 30, 2013 Thomas Medical Products, Inc [Member]	Dec. 31, 2012 Thomas Medical Products, Inc [Member]	Nov. 19, 2012 MediGroup [Member]	Dec. 31, 2012 MediGroup [Member]	Jan. 31, 2012 Ostial Solutions, LLC [Member]	Aug. 31, 2012 Ostial Solutions, LLC [Member]	Jan. 31, 2012 Ostial Solutions, LLC [Member]	Dec. 31, 2012 Ostial Solutions, LLC [Member]	Dec. 19, 2012 Developed Technology Rights [Member] Thomas Medical Products, Inc [Member]	Nov. 19, 2012 Developed Technology Rights [Member] MediGroup [Member]	Jan. 31, 2012 Developed Technology Rights [Member] Ostial Solutions, LLC [Member]	Dec. 19, 2012 Customer Lists [Member] Thomas Medical Products, Inc [Member]	Nov. 19, 2012 Customer Lists [Member] MediGroup [Member]	Jan. 31, 2012 Customer Lists [Member] Ostial Solutions, LLC [Member]	Dec. 19, 2012 Noncompete Agreements [Member] Thomas Medical Products, Inc [Member]	Nov. 19, 2012 Noncompete Agreements [Member] MediGroup [Member]	Jan. 31, 2012 Noncompete Agreements [Member] Ostial Solutions, LLC [Member]	Dec. 19, 2012 Trademarks [Member] Thomas Medical Products, Inc [Member]	Nov. 19, 2012 Trademarks [Member] MediGroup [Member]	Jan. 31, 2012 Trademarks [Member] Ostial Solutions, LLC [Member]	Dec. 19, 2012 Credit Agreement [Member]	Jan. 31, 2013 Intellectual Property Rights [Member]	May 31, 2012 Intellectual Property Rights [Member]	Dec. 31, 2011 Intellectual Property Rights [Member]
Business Acquisition [Line Items]
Goodwill, Allocation Adjustment							$ 381,000
Payments to acquire businesses					167,000,000				4,000,000			6,500,000	10,000,000
Business combination, liabilities incurred					445,000
Pro forma information, revenue								1,900,000		169,000				457,000
Pro forma information, income before tax								51,000
Acquired receivables, gross contractual amount					6,500,000
Acquired receivables, estimated uncollectible					34,000
Useful life															8 years	8 years	15 years	12 years	8 years	8 years	3 years	7 years	5 years	15 years	15 years	15 years
Weighted-average amortization period					8 years 6 months 18 days				8 years 1 month 24 days		14 years 7 months 6 days
Payments of long-term debt issuance costs																											3,700,000
Acquisition-related costs						32,000	526,000	2,700,000
Contingent consideration, payment in 2013									150,000
Contingent consideration, payment in 2014									150,000
Contingent consideration, payment in 2015									150,000
Contingent consideration, potential payment in 2016									150,000
Contingent consideration, potential payment in 2017									150,000
Contingent consideration, potential payment in 2018									150,000
Contingent consideration, potential payment in 2019									150,000
Contingent consideration, potential payment in 2020									150,000
Contingent consideration, potential payment in 2021									150,000
Contingent consideration, potential payment in 2022									150,000
Contingent consideration, potential payment, annual increase in net sales, minimum percent									8.00%
Contingent consideration, liability									403,000		4,300,000		4,300,000
Contingent consideration, potential payment											13,500,000
Acquired in-process research and development	$ 0	$ 275,000	$ 0	$ 2,450,000																								$ 1,000,000	$ 1,000,000	$ 2,000,000

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Long-Term Debt (Principal Balances under Long Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total long-term debt	$ 251,157	$ 237,566
Current portion of long-term debt	10,000	10,000
LONG-TERM DEBT	241,157	227,566
Term Loan [Member]
Debt Instrument [Line Items]
Total long-term debt	95,000	100,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 156,157	$ 137,566

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Subsequent Event (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 04, 2013
Datascope Corporation [Member]
Subsequent Event [Line Items]
Consideration transferred	$ 27.5
Radial Assist, LLC [Member]
Subsequent Event [Line Items]
Consideration transferred	2.5
Credit Agreement [Member]
Subsequent Event [Line Items]
Increase in borrowing capacity	$ 40.0
Consolidated Total Leverage Ratio, remainder of year, maximum	4.75
Consolidated Total Leverage Ratio, In next 6 months, maximum	4
Consolidated Total Leverage Ratio, In next 9 months, maximum	3.75
Consolidated Total Leverage Ratio, In next 12 months, maximum	3.5
Consolidated Total Leverage Ratio, In next 15 months, maximum	3.25

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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Finished goods	$ 37,196	$ 48,233
Work-in-process	9,782	6,051
Raw materials	34,079	30,315
Total	$ 81,057	$ 84,599

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Fair Value Measurements (Financial Assets and Liabilities Carried at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	$ 745
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0	[1]
Interest Rate Cash Flow Hedge Liability at Fair Value			0	[1]
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	745	[1]
Interest Rate Cash Flow Hedge Liability at Fair Value			(1,788)	[1]
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0	[1]
Interest Rate Cash Flow Hedge Liability at Fair Value			0	[1]
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	745	[1]
Interest Rate Cash Flow Hedge Liability at Fair Value			$ (1,788)	[1]

[1] The fair value of the interest rate swap is determined based on forward yield curves.

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Earnings Per Common Share (EPS) (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The computation of weighted-average shares outstanding and the basic and diluted earnings per common share for the following periods consisted of the following (in thousands, except per share amounts):

	Three Months					Nine Months
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Period ended September 30, 2013
Basic EPS	$	5,607	42,596	$	0.13	$	10,030	42,560	$	0.24
Effect of dilutive stock options and warrants			276					233
Diluted EPS	$	5,607	42,872	$	0.13	$	10,030	42,793	$	0.23
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,857					2,125
Period ended September 30, 2012
Basic EPS	$	7,226	42,202	$	0.17	$	19,069	42,087	$	0.45
Effect of dilutive stock options and warrants			490					449
Diluted EPS	$	7,226	42,692	$	0.17	$	19,069	42,536	$	0.45
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,542					1,608

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Unrealized holding gain arising during the period, tax	$ 0	$ 2	$ 0	$ 214
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	0	328	0	63
Interest rate swap, tax	281	0	985	0
Foreign currency translation adjustment, tax	$ (8)	$ (21)	$ (16)	$ (8)

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Statement of Cash Flows [Abstract]
Capitalized interest	$ 797	$ 289
Stock Surrendered During Period Shares Stock Options Exercised	45	71

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Stock-based Compensation

9 Months Ended

Sep. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based Compensation

Stock-based Compensation. Stock-based compensation expense before income taxes for the three and nine-month periods ended September 30, 2013 and 2012 consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of goods sold	$	18	$	49	$	98	$	190
Research and development	20		26		69		93
Selling, general, and administrative	251		354		905		1,171
Stock-based compensation expense before income taxes	$	289	$	429	$	1,072	$	1,454

As of September 30, 2013, the total remaining unrecognized compensation cost related to non-vested stock options, net of expected forfeitures, was approximately $4.7 million and is expected to be recognized over a weighted-average period of 3.5 years.

During the three and nine-month periods ended September 30, 2013, we granted awards representing 172,500 and 347,500 shares, respectively, of our common stock. During the three and nine-month periods ended September 30, 2012, we granted awards representing 7,500 and 127,500 shares of common stock, respectively. We use the Black-Scholes methodology to value stock-based compensation expense for options. In applying the Black-Scholes methodology to our outstanding option grants, we used the following assumptions:

	Nine Months Ended
	September 30,
	2013	2012
Risk-free interest rate	0.65% - 1.16%	0.54% - 0.95%
Expected option life	4.2 - 6.0 years	4.2 - 6.0 years
Expected dividend yield	—	—
Expected price volatility	34.08% - 41.67%	42.01% - 44.56%

For purposes of the foregoing analysis, the average risk-free interest rate is determined using the U.S. Treasury rate in effect as of the date of grant, based on the expected term of the stock option. The expected term of the stock options is determined using the historical exercise behavior of employees. The expected price volatility is determined using a weighted average of daily historical volatility of our stock price over the corresponding expected option life and implied volatility based on recent trends of the daily historical volatility. For options with a vesting period, compensation expense is recognized on a straight-line basis over the service period, which corresponds to the vesting period.

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Basis of Presentation

9 Months Ended

Sep. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation. The interim consolidated financial statements of Merit Medical Systems, Inc. ("Merit," "we" or "us") for the three and nine months ended September 30, 2013 and 2012 are not audited. Our consolidated financial statements are prepared in accordance with the requirements for unaudited interim periods, and consequently, do not include all disclosures required to be made in conformity with accounting principles generally accepted in the United States of America. In the opinion of management, the accompanying consolidated financial statements contain all adjustments, consisting of normal recurring accruals, necessary for a fair presentation of our financial position as of September 30, 2013, and our results of operations and cash flows for the three and nine-month periods ended September 30, 2013 and 2012. The results of operations for the three and nine-month periods ended September 30, 2013 are not necessarily indicative of the results for a full-year period. These interim consolidated financial statements should be read in conjunction with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Commission (the "SEC").

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Long-Term Debt (Future Minimum Principal Payments on Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
Remaining 2013	$ 2,500
2014	10,000
2015	10,000
2016	10,000
2017	218,657
Total long-term debt	$ 251,157	$ 237,566

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Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

In summary, principal balances under our long-term debt as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Term loan	$	95,000	$	100,000
Revolving credit loans	156,157		137,566
Total long-term debt	251,157		237,566
Less current portion	10,000		10,000
Long-term portion	$	241,157	$	227,566

Schedule of Maturities of Long-term Debt

Future minimum principal payments on our long-term debt as of September 30, 2013, were as follows (in thousands):

Years Ending	Future Minimum
December 31	Principal Payments
Remaining 2013	$	2,500
2014	10,000
2015	10,000
2016	10,000
2017	218,657
Total future minimum principal payments	$	251,157

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Stock-based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	$ 289,000	$ 429,000	$ 1,072,000	$ 1,454,000
Total remaining unrecognized compensation cost related to non-vested stock options	4,700,000		4,700,000
Total remaining unrecognized compensation cost related to non-vested stock options, recogniztion period			3 years 6 months 10 days
Stock awards granted	172,500	7,500	347,500	127,500
Expected dividend yield			0.00%	0.00%
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	18,000	49,000	98,000	190,000
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	20,000	26,000	69,000	93,000
Selling General And Administrative Stock Based Compensation Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	$ 251,000	$ 354,000	$ 905,000	$ 1,171,000
Minimum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Risk-free interest rate			0.65%	0.54%
Expected option life			4 years 2 months 12 days	4 years 2 months 12 days
Expected price volatility			34.08%	42.10%
Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Risk-free interest rate			1.16%	0.95%
Expected option life			6 years	6 years
Expected price volatility			41.67%	44.56%

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Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 115,210	$ 95,907	$ 329,033	$ 292,057
Operating Income (Loss)	8,391	9,082	16,928	25,311
Cardiovascular Segment [Member]
Segment Reporting Information [Line Items]
Net sales	110,859	92,106	316,566	280,336
Operating Income (Loss)	7,753	9,169	16,031	26,005
Endoscopy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	4,351	3,801	12,467	11,721
Operating Income (Loss)	$ 638	$ (87)	$ 897	$ (694)

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Fair Value Measurements (Fair Value Inputs, Liabilities, Quantitative Information) (Details) (Contingent Consideration [Member], USD $) In Thousands, unless otherwise specified					9 Months Ended				9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Revenue-based Payments [Member]	Sep. 30, 2013 Revenue-based Payments [Member] Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member]	Sep. 30, 2013 Revenue-based Payments [Member] Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member] Minimum [Member]	Sep. 30, 2013 Revenue-based Payments [Member] Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member] Maximum [Member]	Sep. 30, 2013 Other Payments [Member]	Sep. 30, 2013 Other Payments [Member] Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities - Contingent consideration liability	$ 2,562	$ 6,692	$ 6,697	$ 2,266				$ 296
Discount rate						11.00%	15.00%		5.40%
Probability of milestone payment					90.00%				100.00%

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Trade receivables, allowance for uncollectible accounts	$ 779	$ 892
STOCKHOLDERS’ EQUITY:
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Common stock, no par value
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	42,612	42,489
Developed Technology Rights [Member]
OTHER ASSETS:
Intangible assets, accumulated amortization	14,970	8,146
Other Intangible Assets [Member]
OTHER ASSETS:
Intangible assets, accumulated amortization	$ 17,652	$ 14,034

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Segment Reporting

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting. We report our operations in two operating segments: cardiovascular and endoscopy. Our cardiovascular segment consists of cardiology and radiology medical device products which assist in diagnosing and treating coronary artery disease, peripheral vascular disease and other non-vascular diseases, including our embolotherapeutic products. Our endoscopy segment consists of gastroenterology and pulmonary medical device products which assist in the palliative treatment of expanding esophageal, tracheobronchial and biliary strictures caused by malignant tumors. We evaluate the performance of our operating segments based on operating income (loss). Financial information relating to our reportable operating segments and reconciliations to the consolidated totals is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2013		2012			2013		2012
Revenues
Cardiovascular	$	110,859	$	92,106		$	316,566	$	280,336
Endoscopy	4,351		3,801			12,467		11,721
Total revenues	115,210		95,907			329,033		292,057
Operating income (loss)
Cardiovascular	7,753		9,169			16,031		26,005
Endoscopy	638		(87		)	897		(694		)
Total operating income	$	8,391	$	9,082		$	16,928	$	25,311

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$ 5,607	$ 7,226	$ 10,030	$ 19,069
Other comprehensive income (loss):
Unrealized holding gain arising during the period, net of tax of $0 and $2 for the three months and $0 and $214 for the nine months ended September 30, 2013 and 2012, respectively	0	(3)	0	336
Less: reclassification adjustment for gains included in net income, net of tax of $0 and $328 for the three months and $0 and $63 for the nine months ended September 30, 2013 and 2012, respectively	0	(98)	0	(516)
Interest rate swap, net of tax of $281 and $0 for the three months and $985 and $0 for the nine months ended September 30, 2013 and 2012, respectively	(441)	0	1,548	0
Foreign currency translation adjustment, net of tax of $8 and $21 for the three months and $16 and $8 for the nine months ended September 30, 2013 and 2012, respectively	334	(206)	261	(154)
Total other comprehensive income (loss)	(107)	(307)	1,809	(334)
Total comprehensive income	$ 5,500	$ 6,919	$ 11,839	$ 18,735

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CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 9,115	$ 9,719
Trade receivables — net of allowance for uncollectible accounts — 2013 — $779 and 2012 — $892	57,279	53,402
Employee receivables	249	169
Other receivables	2,502	2,672
Inventories	81,057	84,599
Prepaid expenses	4,922	4,133
Prepaid income taxes	1,266	1,250
Deferred income tax assets	4,989	4,976
Income tax refund receivable	1,102	1,076
Total current assets	162,481	161,996
PROPERTY AND EQUIPMENT:
Land and land improvements	17,989	17,346
Buildings	126,340	81,223
Manufacturing equipment	136,013	117,601
Furniture and fixtures	32,154	26,307
Leasehold improvements	14,184	13,236
Construction-in-progress	43,276	74,643
Total property and equipment	369,956	330,356
Less accumulated depreciation	(107,993)	(95,553)
Property and equipment — net	261,963	234,803
OTHER ASSETS:
Goodwill	175,489	175,108
Deferred income tax assets	4,237	4,237
Other assets	12,208	11,034
Total other assets	293,739	308,510
TOTAL	718,183	705,309
CURRENT LIABILITIES:
Trade payables	23,637	34,637
Accrued expenses	27,308	27,269
Current portion of long-term debt	10,000	10,000
Advances from employees	729	551
Income taxes payable	1,871	547
Total current liabilities	63,545	73,004
LONG-TERM DEBT	241,157	227,566
DEFERRED INCOME TAX LIABILITIES	2,436	2,373
LIABILITIES RELATED TO UNRECOGNIZED TAX BENEFITS	2,035	2,938
DEFERRED COMPENSATION PAYABLE	6,821	5,956
DEFERRED CREDITS	3,107	2,980
OTHER LONG-TERM OBLIGATIONS	3,456	8,915
Total liabilities	322,557	323,732
Commitments and Contingencies
STOCKHOLDERS’ EQUITY:
Preferred stock — 5,000 shares authorized as of September 30, 2013 and December 31, 2012; no shares issued	0	0
Common stock — no par value; 100,000 shares authorized; 42,612 and 42,489 shares issued at September 30, 2013 and December 31, 2012, respectively	174,551	172,341
Retained earnings	220,448	210,418
Accumulated other comprehensive income (loss)	627	(1,182)
Total stockholders’ equity	395,626	381,577
TOTAL	718,183	705,309
Developed Technology Rights [Member]
OTHER ASSETS:
Intangible Assets	73,887	87,332
Other Intangible Assets [Member]
OTHER ASSETS:
Intangible Assets	$ 27,918	$ 30,799

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Our financial assets (liabilities) carried at fair value measured on a recurring basis as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	745		$	—	$	745		$	—
				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	December 31, 2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	(1,788	)	$	—	$	(1,788	)	$	—

(1)    The fair value of the interest rate swap is determined based on forward yield curves.

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

Changes in the fair value of our contingent liability during the three and nine-month periods ended September 30, 2013, were as follows (in thousands):

	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2013			2013
Beginning balance	$	6,692		$	6,697
Fair value adjustments recorded to income during the period	(4,108		)	(4,075		)
Contingent payments made	(22		)	(60		)
Ending balance	$	2,562		$	2,562

Fair Value Inputs, Liabilities, Quantitative Information

The recurring Level 3 measurement of our contingent consideration liability includes the following significant unobservable inputs (amount in thousands):

Contingent consideration liability	Fair value at September 30, 2013		Valuation technique	Unobservable inputs	Range
Revenue-based payments	$	2,266	Discounted Cash Flow	Discount rate	11.0% - 15.0%
				Probability of milestone payment	90%
				Projected year of payments	2013-2028
Other payments	296		Discounted cash flow	Discount rate	5.4%
				Probability of milestone payment	100%
				Projected year of payments	2013-2015

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Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013		December 31, 2012
Finished goods	$	37,196	$	48,233
Work-in-process	9,782		6,051
Raw materials	34,079		30,315
Total	$	81,057	$	84,599

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Fair Value Measurements (Liability Measured on Recurring Basis, Unobservable Input Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value adjustments recorded to income during the period	$ (4,108)	$ 0	$ (4,075)	$ 0
Contingent Consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	6,692		6,697
Fair value adjustments recorded to income during the period	(4,108)		(4,075)
Contingent payments made	(22)		(60)
Ending balance	$ 2,562		$ 2,562

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Long-Term Debt (Narrative) (Details) (USD $)	9 Months Ended				0 Months Ended
	Sep. 30, 2013 Credit Agreement [Member] quarter	Dec. 31, 2012 Credit Agreement [Member]	Dec. 19, 2012 Revolving Credit Facility [Member] Credit Agreement [Member]	Sep. 30, 2010 Revolving Credit Facility [Member] Wells Fargo [Member]	Dec. 19, 2012 Term Loan [Member] Credit Agreement [Member]	Sep. 30, 2013 Base Rate [Member] Credit Agreement [Member]	Dec. 19, 2012 Base Rate [Member] Credit Agreement [Member]	Sep. 30, 2013 Base Rate [Member] Bridge Loan [Member] Credit Agreement [Member]	Sep. 30, 2013 London Interbank Offered Rate (LIBOR) Market Index Rate [Member] Credit Agreement [Member]	Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Market Index Rate [Member] Credit Agreement [Member]	Sep. 30, 2013 London Interbank Offered Rate (LIBOR) Market Index Rate [Member] Bridge Loan [Member] Credit Agreement [Member]	Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Market Index Rate [Member] Bridge Loan [Member] Credit Agreement [Member]	Sep. 30, 2013 Federal Funds Rate [Member] Credit Agreement [Member]	Sep. 30, 2013 London Interbank Offered Rate (LIBOR) [Member] Credit Agreement [Member]	Dec. 19, 2012 London Interbank Offered Rate (LIBOR) [Member] Credit Agreement [Member]	Sep. 30, 2013 Variable Rate 1 [Member] Credit Agreement [Member]	Dec. 31, 2012 Variable Rate 1 [Member] Credit Agreement [Member]	Sep. 30, 2013 Variable Rate 2 [Member] Credit Agreement [Member]	Dec. 31, 2012 Variable Rate 2 [Member] Credit Agreement [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 175,000,000	$ 125,000,000	$ 100,000,000
Periodic payment					2,500,000
Basis spread on variable rate						0.25%	1.25%		1.25%	2.25%	1.25%	2.25%		1.25%	2.25%
Covenant terms, consolidated total leverage ratio, minimum						2.25		2.25	2.25					2.25
Basis spread on base rate													0.0050	0.01
Covenant terms, consolidated total leverage ratio, next twelve months, maximum	3.5
Covenant terms, consolidated total leverage ratio, year two, maximum	3.35
Covenant terms, consolidated total leverage ratio, year three, maximum	3
Covenant terms, consolidated total leverage ratio, year four, maximum	2.75
Covenant terms, consolidated total leverage ratio, year five, maximum	2.5
Covenant terms, consolidated EBITDA to fixed charges ratio, number of consecutive quarters	4
Covenant terms, consolidated EBITDA to fixed charges ratio, Minimum	1.75
Covenant terms, consolidated net income, maximum	0
Covenant terms, facility capital expenditures, next twelve months, maximum	30,000,000
Remaining borrowing capacity	18,800,000
Debt, percentage bearing fixed interest, percentage rate	3.23%	2.98%
Debt, percentage bearing fixed interest, amount	146,300,000	150,000,000
Debt, percentage bearing variable interest, percentage rate																2.44%	2.22%	2.50%	2.31%
Debt, percentage bearing variable interest, amount																$ 104,700,000	$ 87,000,000	$ 157,000	$ 566,000

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Acquisitions (Net Assets Acquired) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Jan. 31, 2012 Ostial Solutions, LLC [Member]	Nov. 19, 2012 MediGroup [Member]	Dec. 19, 2012 Thomas Medical Products, Inc [Member]	Jan. 31, 2012 Developed Technology Rights [Member] Ostial Solutions, LLC [Member]	Nov. 19, 2012 Developed Technology Rights [Member] MediGroup [Member]	Dec. 19, 2012 Developed Technology Rights [Member] Thomas Medical Products, Inc [Member]	Jan. 31, 2012 Noncompete Agreements [Member] Ostial Solutions, LLC [Member]	Nov. 19, 2012 Noncompete Agreements [Member] MediGroup [Member]	Dec. 19, 2012 Noncompete Agreements [Member] Thomas Medical Products, Inc [Member]	Jan. 31, 2012 Customer Lists [Member] Ostial Solutions, LLC [Member]	Nov. 19, 2012 Customer Lists [Member] MediGroup [Member]	Dec. 19, 2012 Customer Lists [Member] Thomas Medical Products, Inc [Member]	Jan. 31, 2012 Trademarks [Member] Ostial Solutions, LLC [Member]	Nov. 19, 2012 Trademarks [Member] MediGroup [Member]	Dec. 19, 2012 Trademarks [Member] Thomas Medical Products, Inc [Member]
Business Acquisition [Line Items]
Trade receivables					$ 6,507
Inventories				263	5,078
Prepaid expenses					340
Property and equipment				79	2,685
Intangibles						10,500	2,000	43,000	10	210	500	600	110	5,000	110	80	1,400
Goodwill	175,489	175,108	9,580	1,697	102,788
Total assets acquired			20,800	4,439	167,298
Trade payables					588
Accrued expenses					1,094
Total liabilities assumed					1,682
Net assets acquired, net of cash acquired					165,616
Net assets acquired, cash acquired					$ 1,829

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Acquisitions (Pro Forma) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Business Combinations [Abstract]
Net sales	$ 115,210	$ 95,907	$ 329,033	$ 292,057
Net sales, Pro Forma		106,600		320,843
Net income	5,607	7,226	10,030	19,069
Net Income, Pro Forma		$ 8,707		$ 22,007
Basic (in dollars per share)	$ 0.13	$ 0.17	$ 0.24	$ 0.45
Basic, Pro Forma (in dollars per share)		$ 0.21		$ 0.52
Diluted (in dollars per share)	$ 0.13	$ 0.17	$ 0.23	$ 0.45
Diluted, Pro Forma (in dollars per share)		$ 0.20		$ 0.52

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Acquisitions

9 Months Ended

Sep. 30, 2013

Business Combinations [Abstract]

Acquisitions

Acquisitions. On December 19, 2012, we consummated the transactions contemplated by a Stock Purchase Agreement with Vital Signs, Inc., an affiliate of GE Healthcare (“Vital Signs”), as seller, and purchased all of the issued and outstanding shares of Thomas Medical Products, Inc. (“Thomas Medical”), a Pennsylvania corporation. At the time we completed the acquisition, the primary assets of Thomas Medical were patents, trademarks, other intellectual property and business assets related to introducers, hemostatic valves and sheaths. Using the Thomas Medical splittable hemostatic introducer sheath as an entry product, we intend to develop a portfolio of premium accessories for electrophysiology physicians. We accounted for the acquisition as a business combination. We made an initial payment of $167.0 million to Vital Signs in December 2012. We also accrued an additional $445,000 at December 31, 2012, reflecting the final payment made to Vital Signs in February 2013 for net working capital received in excess of the target net working capital specified. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. Our consolidated financial statements for the year ended December 31, 2012 include approximately $1.9 millionand $51,000 of net sales and income before tax, respectively, related to the operations of Thomas Medical. The total purchase price was preliminarily allocated as follows (in thousands):

Assets Acquired
Trade receivables	$	6,507
Inventories	5,078
Prepaid expenses	340
Property and equipment	2,685
Intangibles
Developed technology	43,000
Non-compete agreements	500
Customer lists	5,000
Trademarks	1,400
Goodwill	102,788
Total assets acquired	167,298
Liabilities Assumed
Trade payables	588
Accrued expenses	1,094
Total liabilities assumed	1,682
Net assets acquired, net of cash acquired of $1,829	$	165,616

During the nine months ended September 30, 2013, the goodwill related to the Thomas Medical acquisition was increased by approximately $381,000 due to an adjustment related to inventory. The preliminary allocation is subject to adjustment as we continue to evaluate new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement amounts recognized as of the acquisition date.

The gross amount of trade receivables we acquired in the Thomas Medical transaction was approximately $6.5 million, of which $34,000 was expected, at the acquisition date, to be uncollectible. With respect to the Thomas Medical assets, we intend to amortize developed technology over eight years, customer lists on an accelerated basis over 12 years, and non-compete agreements over three years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademarks for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 8.55 years.

In connection with our Thomas Medical acquisition, we paid approximately $3.7 million in long-term debt issuance costs to Wells Fargo Bank related to our Credit Agreement (see Note 9). These costs consisted primarily of loan origination fees and related legal costs that we intend to amortize over five years, which is the contract term of our Credit Agreement. We also incurred approximately $32,000 and $526,000 of acquisition-related costs during the three and nine months ended September 30, 2013, respectively, and $2.7 million for the year ended December 31, 2012, which are included in selling, general and administrative expenses in the accompanying consolidated statements of operations.

On November 19, 2012, we entered into an Asset Purchase Agreement with Janin Group, Inc. (dba MediGroup) ("MediGroup"), an Illinois corporation, to purchase substantially all of the assets of MediGroup. The primary assets of MediGroup are the patented Flex-Neck® Peritoneal Dialysis Catheters and Y-TEC™ Peritoneal Dialysis Implantation Kits. We accounted for this acquisition as a business combination. We made an initial payment to MediGroup of approximately $4.0 million in November 2012. In addition, we are obligated to make contingent payments of up to $150,000 per year during 2013, 2014 and 2015. Furthermore, we are obligated to make contingent purchase price payments of $150,000 per year in 2016 through 2022 if net sales of Medigroup products increase at least 8% in each subsequent year. If net sales of MediGroup products have not increased by the percentage set forth in any year, our obligation to make these contingent payments shall cease. The acquisition-date fair value of the contingent consideration liability of approximately $403,000 has been included as part of the purchase consideration. Acquisition-related costs during the year ended December 31, 2012, which are included in selling, general, and administrative expenses in the consolidated statements of income included in our Annual Report on Form 10-K for the year ended December 31, 2012, filed with the SEC on March 1, 2013 (the "2012 Form 10-K"), were not material to our financial position. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. During the year ended December 31, 2012, our net sales of MediGroup products were approximately $169,000. It is not practical to separately report the earnings related to the MediGroup acquisition, as we cannot split out sales costs related to MediGroup products, principally because our sales representatives are selling multiple products (including MediGroup products) in the cardiovascular business segment. The total purchase price, which includes the contingent consideration liability described above, was preliminarily allocated as follows (in thousands):

Assets Acquired
Inventories	$	263
Property and equipment	79
Intangibles
Developed technology	2,000
Non-compete agreements	210
Customer lists	110
Trademarks	80
Goodwill	1,697
Total assets acquired	$	4,439

With respect to the MediGroup assets, we intend to amortize developed technology over eight years, customer lists on an accelerated basis over eight years, and non-compete agreements over seven years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademarks for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 8.15 years.

On January 31, 2012, we consummated the transactions contemplated by an Asset Purchase Agreement with Ostial Solutions, LLC ("Ostial"), a Michigan limited liability company, to purchase substantially all of the assets of Ostial. The primary asset of Ostial is the patented Ostial PRO Stent Positioning System, which is designed to facilitate precise stent implantation in coronary and renal aorto-ostial lesions. We accounted for this acquisition as a business combination. We made an initial payment of $10.0 million to Ostial in January 2012 and an additional payment of $6.5 million to Ostial in August 2012. In addition, we are obligated to make contingent purchase price payments of up to $13.5 million based on a percentage of future sales of products utilizing the Ostial PRO Stent Positioning System. The acquisition-date fair value of this contingent consideration liability of $4.3 million has been included as part of the purchase consideration and was determined using a discounted cash flow model based upon the expected timing and amount of these future contingent payments. Acquisition-related costs during the year ended December 31, 2012, which are included in selling, general, and administrative expenses in the consolidated statements of income included in our 2012 Form 10-K, were not material to our financial position. The results of operations related to this acquisition have been included in our cardiovascular segment since the acquisition date. During the year ended December 31, 2012, our net sales of products utilizing the Ostial PRO Stent Positioning System were approximately $457,000. It is not practical to separately report the earnings related to the Ostial acquisition, as we cannot split out sales costs related to Ostial products, principally because our sales representatives are selling multiple products (including Ostial products) in the cardiovascular business segment. The total purchase price, which includes the contingent consideration liability described above, was allocated as follows (in thousands):

Assets Acquired
Intangibles
Developed technology	$	10,500
Customer lists	600
Trademark	110
Non-compete agreements	10
Goodwill	9,580
Total assets acquired	$	20,800

With respect to the Ostial assets, we intend to amortize developed technology over 15 years, customer lists on an accelerated basis over eight years, and non-compete agreements over five years. While U.S. trademarks can be renewed indefinitely, we currently estimate that we will generate cash flow from the acquired trademark for a period of 15 years from the acquisition date. The total weighted-average amortization period for these acquired intangible assets is 14.6 years.

The following table summarizes our unaudited consolidated results of operations for the three and nine-month periods ended September 30, 2012, as well as unaudited pro forma consolidated results of operations as though the Thomas Medical and MediGroup acquisitions had occurred on January 1, 2012 (in thousands, except per common share amounts):

	Three Months Ended				Nine Months Ended
	September 30, 2012				September 30, 2012
	As Reported		Pro Forma		As Reported		Pro Forma
Net sales	$	95,907	$	106,600	$	292,057	$	320,843
Net income	7,226		8,707		19,069		22,007
Earnings per common share:
Basic	$	0.17	$	0.21	$	0.45	$	0.52
Diluted	$	0.17	$	0.20	$	0.45	$	0.52

The unaudited pro forma information set forth above is for informational purposes only and includes adjustments related to amortization expense related to acquired intangible assets and interest expense on long-term debt. The pro forma information should not be considered indicative of actual results that would have been achieved if Thomas Medical and the MediGroup assets had been acquired at the beginning of 2012 or results that may be obtained in any future period. The pro forma consolidated results of operations do not include the Ostial acquisition, as we do not deem the pro forma effect of that transaction to be material.

On December 15, 2011, we acquired the intellectual property rights to certain support guide catheter technology. We made an initial payment of $2.0 million in December 2011 and a payment of $1.0 million in May 2012 based on a certain obligation set forth in the acquisition agreement having been met. In January 2013, we made a payment of $1.0 million based on a milestone set forth in the acquisition agreement related to the clearance of the support guide catheter with the U.S. Food and Drug Administration under Section 510(k) of the U.S. Food Drug and Cosmetic Act.

The goodwill arising from the acquisitions discussed above consists largely of the synergies and economies of scale we hope to achieve from combining the acquired assets and operations with our historical operations (see Note 12). The goodwill recognized from these acquisitions is expected to be deductible for income tax purposes.

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets by Major Class

Other intangible assets at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	8,906	$	(2,298	)	$	6,608
Distribution agreements	5,176		(1,660		)	3,516
License agreements	2,733		(1,156		)	1,577
Trademarks	7,255		(1,719		)	5,536
Covenants not to compete	1,029		(339		)	690
Customer lists	20,204		(10,213		)	9,991
Royalty agreements	267		(267		)	—
Total	$	45,570	$	(17,652	)	$	27,918

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	7,843	$	(2,045	)	$	5,798
Distribution agreements	5,176		(1,301		)	3,875
License agreements	2,733		(861		)	1,872
Trademarks	7,311		(1,362		)	5,949
Covenants not to compete	1,035		(160		)	875
Customer lists	20,468		(8,038		)	12,430
Royalty agreements	267		(267		)	—
Total	$	44,833	$	(14,034	)	$	30,799

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated amortization expense for intangible assets for the next five years consisted of the following as of September 30, 2013 (in thousands):

Year Ending December 31
Remaining 2013	$	3,363
2014	12,684
2015	12,140
2016	11,515
2017	11,150

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Derivatives (Details)			0 Months Ended
	Sep. 30, 2013 USD ($)	Dec. 19, 2012 USD ($)	Feb. 28, 2013 30 Day Forward Contract EURO [Member] EUR (€)	Feb. 28, 2013 30 Day Forward Contract GBP [Member] GBP (£)
Derivative [Line Items]
Total Variable-Rate Debt Outstanding		$ 150,000,000
Derivative, Fixed Interest Rate		0.98%
Forward Contract Term			30 days	30 days
Interest Rate Cash Flow Hedge Asset at Fair Value	745,000
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax	(290,000)
Derivative, Notional Amount			€ 411,000	£ 408,000

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Income Taxes

9 Months Ended

Sep. 30, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes. Our overall effective tax rate for the three months ended September 30, 2013 was 12.9%, compared to 20.0% for the corresponding period of 2012. For the nine months ended September 30, 2013, our effective tax rate was 14.0%, compared to 26.0% for the corresponding period of 2012. The effective income tax rates for the three and nine-month periods ended September 30, 2013, when compared to the corresponding periods of 2012, were lower as a result of a higher mix of earnings from our foreign operations, which are taxed at lower rates than our U.S. operations, and the release of reserves for uncertain tax positions due to statute of limitation expirations. In addition, the effective tax rate for the nine months ended September 30, 2013 was lower than the corresponding prior-year period due to the reinstatement of the federal research and development credit for the 2012 tax year. The credit was reinstated by the American Taxpayer Relief Act of 2012, which was signed on January 2, 2013. We recognized the federal research and development credit as a discrete benefit in the first quarter of 2013, the period in which the reinstatement was enacted.

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Earnings Per Common Share (EPS)

9 Months Ended

Sep. 30, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Earnings Per Common Share (EPS)

Earnings Per Common Share (EPS). The computation of weighted-average shares outstanding and the basic and diluted earnings per common share for the following periods consisted of the following (in thousands, except per share amounts):

	Three Months					Nine Months
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Period ended September 30, 2013
Basic EPS	$	5,607	42,596	$	0.13	$	10,030	42,560	$	0.24
Effect of dilutive stock options and warrants			276					233
Diluted EPS	$	5,607	42,872	$	0.13	$	10,030	42,793	$	0.23
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,857					2,125
Period ended September 30, 2012
Basic EPS	$	7,226	42,202	$	0.17	$	19,069	42,087	$	0.45
Effect of dilutive stock options and warrants			490					449
Diluted EPS	$	7,226	42,692	$	0.17	$	19,069	42,536	$	0.45
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive			1,542					1,608

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 10,030	$ 19,069
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23,926	16,724
Loss (gain) on sales and/or abandonment of property and equipment	102	(1)
Write-off of patents and intangible assets	8,169	27
Acquired in-process research and development	0	2,450
Amortization of deferred credits	(97)	(140)
Amortization of long-term debt issuance costs	598	0
Realized gain on sale of marketable securities	0	(745)
Deferred income taxes	(13)	14
Excess tax benefits from stock-based compensation	(145)	(716)
Stock-based compensation expense	1,072	1,454
Changes in operating assets and liabilities, net of effects from acquisitions:
Trade receivables	(3,700)	(7,521)
Employee receivables	(78)	(78)
Other receivables	(435)	(490)
Inventories	3,161	(8,884)
Prepaid expenses	(702)	(598)
Prepaid income taxes	(17)	2
Income tax refund receivable	527	259
Other assets	(923)	(869)
Trade payables	(4,078)	5,805
Accrued expenses	(149)	2,793
Advances from employees	164	408
Income taxes payable	(138)	2,670
Liabilities related to unrecognized tax benefits	(903)	(993)
Deferred compensation payable	865	838
Other long-term obligations	(3,612)	684
Total adjustments	23,594	13,093
Net cash provided by operating activities	33,624	32,162
Capital expenditures for:
Property and equipment	(48,035)	(49,264)
Patents and trademarks	(1,143)	(1,059)
Proceeds from the sale of marketable securities	0	3,248
Proceeds from the sale of property and equipment	72	9
Cash paid in acquisitions	(1,000)	(23,555)
Net cash used in investing activities	(50,106)	(70,621)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	1,159	3,326
Borrowings under long-term debt	110,225	127,914
Payments on long-term debt	(96,634)	(94,151)
Excess tax benefits from stock-based compensation	145	716
Proceeds from industrial assistant grants	900	324
Contingent payments related to acquisitions	(60)	(36)
Payment of taxes related to an exchange of common stock	(21)	(287)
Net cash provided by financing activities	15,714	37,806
EFFECT OF EXCHANGE RATES ON CASH	164	(10)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(604)	(663)
CASH AND CASH EQUIVALENTS:
Beginning of period	9,719	10,128
End of period	9,115	9,465
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION-Cash paid during the period for:
Interest (net of capitalized interest of $797 and $289, respectively)	5,381	238
Income taxes	2,024	4,629
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment purchases in accounts payable	5,340	7,429
Acquisition purchases in accrued expenses and other long-term obligations	0	5,000
Acquisition of Customer List in Exchange for Settlement of Trade Receivables	0	378
Merit common stock surrendered (45 and 103 shares, respectively) in exchange for exercise of stock options	$ 452	$ 1,032

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Goodwill and Intangible Assets (Intangible Assets) (Details) (USD $)	3 Months Ended		9 Months Ended																		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Other Intangible Assets [Member]	Dec. 31, 2012 Other Intangible Assets [Member]	Sep. 30, 2013 Patents [Member]	Dec. 31, 2012 Patents [Member]	Sep. 30, 2013 Distribution Rights [Member]	Dec. 31, 2012 Distribution Rights [Member]	Sep. 30, 2013 Licensing Agreements [Member]	Dec. 31, 2012 Licensing Agreements [Member]	Sep. 30, 2013 Trademarks [Member]	Dec. 31, 2012 Trademarks [Member]	Sep. 30, 2013 Noncompete Agreements [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Sep. 30, 2013 Customer Lists [Member]	Dec. 31, 2012 Customer Lists [Member]	Sep. 30, 2013 Royalty Agreements [Member]	Dec. 31, 2012 Royalty Agreements [Member]	Sep. 30, 2013 Ostial Solutions, LLC [Member]	Sep. 30, 2012 Ostial Solutions, LLC [Member]	Sep. 30, 2013 Ostial Solutions, LLC [Member]	Sep. 30, 2012 Ostial Solutions, LLC [Member]
Finite-Lived Intangible Assets [Line Items]
Write-off of patents and intangible assets	$ 8,116,000	$ 17,000	$ 8,169,000	$ 27,000																	$ 8,089,000	$ 0	$ 8,089,000	$ 0
Gross Carrying Amount					45,570,000	44,833,000	8,906,000	7,843,000	5,176,000	5,176,000	2,733,000	2,733,000	7,255,000	7,311,000	1,029,000	1,035,000	20,204,000	20,468,000	267,000	267,000
Accumulated Amortization					(17,652,000)	(14,034,000)	(2,298,000)	(2,045,000)	(1,660,000)	(1,301,000)	(1,156,000)	(861,000)	(1,719,000)	(1,362,000)	(339,000)	(160,000)	(10,213,000)	(8,038,000)	(267,000)	(267,000)
Net Carrying Amount					27,918,000	30,799,000	6,608,000	5,798,000	3,516,000	3,875,000	1,577,000	1,872,000	5,536,000	5,949,000	690,000	875,000	9,991,000	12,430,000	0	0
Reductions to contingent consideration liability																							$ 3,800,000

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Earnings Per Common Share (EPS) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share, Basic and Diluted [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic	$ 5,607	$ 7,226	$ 10,030	$ 19,069
Shares, Basic EPS	42,596	42,202	42,560	42,087
Per Share Amount, Basic EPS	$ 0.13	$ 0.17	$ 0.24	$ 0.45
Shares, Effect of dilutive stock options and warrants	276	490	233	449
Net Income, Diluted EPS	$ 5,607	$ 7,226	$ 10,030	$ 19,069
Shares, Diluted EPS	42,872	42,692	42,793	42,536
Per Share Amount, Diluted EPS	$ 0.13	$ 0.17	$ 0.23	$ 0.45
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive	1,857	1,542	2,125	1,608

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Fair Value Measurements

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements. Our financial assets (liabilities) carried at fair value measured on a recurring basis as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	745		$	—	$	745		$	—
				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	December 31, 2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	(1,788	)	$	—	$	(1,788	)	$	—

(1)    The fair value of the interest rate swap is determined based on forward yield curves.

Certain of our business combinations involve the potential for the payment of future contingent consideration, generally based on a percentage of future product sales or upon attaining specified future revenue milestones. See Note 5 for further information regarding these acquisitions. We re-measure the contingent consideration liability at the estimated fair value at each reporting period with the change in fair value recognized in the accompanying consolidated statements of income. We measure the initial liability and re-measure the liability on a recurring basis using Level 3 inputs as defined under authoritative guidance for fair value measurements. Changes in the fair value of our contingent liability during the three and nine-month periods ended September 30, 2013, were as follows (in thousands):

	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2013			2013
Beginning balance	$	6,692		$	6,697
Fair value adjustments recorded to income during the period	(4,108		)	(4,075		)
Contingent payments made	(22		)	(60		)
Ending balance	$	2,562		$	2,562

The recurring Level 3 measurement of our contingent consideration liability includes the following significant unobservable inputs (amount in thousands):

Contingent consideration liability	Fair value at September 30, 2013		Valuation technique	Unobservable inputs	Range
Revenue-based payments	$	2,266	Discounted Cash Flow	Discount rate	11.0% - 15.0%
				Probability of milestone payment	90%
				Projected year of payments	2013-2028
Other payments	296		Discounted cash flow	Discount rate	5.4%
				Probability of milestone payment	100%
				Projected year of payments	2013-2015

We re-measure the contingent consideration liability to fair value each reporting period using projected revenues, discount rates, probabilities of payment, and projected payment dates. Projected contingent payment amounts are discounted back to the current period using a discounted cash flow model. Projected revenues are based on our most recent internal operational budgets and long-range strategic plans. Increases (decreases) in discount rates and the time to payment may result in lower (higher) fair value measurements. A decrease in the probability of any milestone payment may result in lower fair value measurements. An increase (decrease) in either the discount rate or the time to payment, in isolation, may result in a significantly lower (higher) fair value measurement.

Our determination of the fair value of the contingent consideration liability could change in future periods based upon our ongoing evaluation of these significant unobservable inputs. We intend to record any such change in fair value in our consolidated statements of income. As of September 30, 2013, approximately $2.3 million was reflected in other long-term obligations and $214,000 was reflected in accrued expenses in our consolidated balance sheets. As of December 31, 2012, approximately $5.9 million was reflected in other long-term obligations and $723,000 was reflected in accrued expenses in our consolidated balance sheets. The cash paid to settle the contingent consideration liability recognized at fair value as of the acquisition date (including measurement-period adjustments) has been reflected as a cash outflow from financing activities in the accompanying consolidated statements of cash flows. See Note 12 for further information regarding the $3.8 million of fair value reductions to the contingent consideration liability we incurred in connection with our acquisition of the Ostial assets and the associated intangible asset impairment charge.

During both the three and nine-month periods ended September 30, 2013, we had losses of approximately $8.1 million and $8.2 million, respectively, compared to $17,000 and $27,000 for the corresponding three and nine-month periods ended September 30, 2012, related to the measurement of non-financial assets at fair value on a non-recurring basis subsequent to their initial recognition.

Of the loss amount noted in the preceding paragraph for the three and nine-month periods ended September 30, 2013, approximately $8.1 million related to the impairment of our intangible assets related to our Ostial acquisition (see Note 12). The non-recurring fair values of the Ostial intangible assets as of September 30, 2013 were approximately $1.5 million for developed technology and $160,000 for other intangible assets. Determining the fair value is judgmental in nature and requires the use of significant estimates and assumptions, considered to be level 3 inputs. These values were determined using a discounted cash flow valuation technique. We did not have other intangible assets measured at fair value on a non-recurring basis as of September 30, 2013.

The carrying amount of cash and cash equivalents, trade receivables, and trade payables approximates fair value because of the immediate, short-term maturity of these financial instruments. The carrying amount of long-term debt approximates fair value, as determined by borrowing rates estimated to be available to us for debt with similar terms and conditions. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs, with the exception of cash and cash equivalents (Level 1).

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2013

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements. In March 2013, the Financial Accounting Standards Board (“FASB”) issued amendments to address the accounting for the cumulative translation adjustment when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a non-profit activity or a business within a foreign entity. The amendments are effective prospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2013 (early adoption is permitted). The adoption of this guidance is not expected to have a material effect on our consolidated financial position or results of operations.

In February 2013, the FASB issued amendments to disclosure requirements for presentation of comprehensive income. The standard requires presentation (either in a single note or parenthetically on the face of the financial statements) of the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. If a component is not required to be reclassified to net income in its entirety, a cross reference to the related footnote for additional information is required. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. The adoption of this guidance did not have a material effect on our consolidated financial statements for the three and nine-month periods ended September 30, 2013.

In July 2012, the FASB issued authoritative guidance related to testing indefinite-lived intangible assets for impairment. This guidance simplifies how entities test indefinite-lived intangible assets for impairment and permits an entity to first assess qualitative factors to determine whether it is more likely than not that the indefinite-lived intangible asset is impaired. This guidance is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. The adoption of this guidance did not have a material effect on our consolidated financial statements for the three and nine-month periods ended September 30, 2013.

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Subsequent Event (Notes)

9 Months Ended

Sep. 30, 2013

Subsequent Events [Abstract]

Subsequent Event

Subsequent Event. On October 4, 2013, we entered into a First Amendment to the Amended and Restated Credit Agreement, dated as of October 4, 2013 (the “Amendment”), by and among Merit, certain subsidiaries of Merit, the Lenders and Wells Fargo as administrative agent for the Lenders. The Amendment sets forth the terms and conditions upon which Merit, Wells Fargo and the other parties to the Amendment have agreed to amend the Credit Agreement. Among other provisions, the Amendment provides for an increase in our borrowing capacity under the Credit Agreement by $40.0 million, adjusts the maximum Consolidated Total Leverage Ratio (as defined in the Credit Agreement) to be no greater than 4.75 to 1 as of any fiscal quarter ending during 2013, no greater than 4.00 to 1 at March 31, 2014, no greater than 3.75 to 1 at June 30, 2014, no greater than 3.50 to 1 at September 30, 2014, and no greater than 3.25 to 1 at December 31, 2014. The maximum ratio thereafter is unchanged. The Amendment also includes an expanded applicable margin table with pricing levels for the higher allowable maximum Consolidated Total Leverage Ratio.

On October 4, 2013, we acquired certain assets contemplated by an Asset Purchase Agreement we executed with Datascope Corporation, a Delaware corporation. The primary assets we acquired consist of the SAFEGUARD® Pressure Assisted Device, which assists in obtaining and maintaining hemostasis after a femoral procedure, and the AIR-BAND™ Radial Compression Device, which is indicated to assist hemostasis of the radial artery puncture site while maintaining visibility. The purchase price was approximately $27.5 million. The initial accounting for this acquisition has not yet been completed.

On October 4, 2013, we acquired certain assets contemplated by an Asset Purchase Agreement with Radial Assist, LLC, a Georgia limited liability company. The primary assets we acquired consist of the RAD BOARD®, RAD BOARD®XTRA™, RAD TRAC™, and RAD REST® devices. The RAD BOARD is designed to provide a larger work space for physicians and an area for patients to rest their arms during radial procedures. The RAD BOARD XTRA is designed to work in conjunction with the RAD BOARD by extending the usable work space and allowing for a 90-degree perpendicular extension of the arm for physicians who prefer doing procedures at a 90-degree angle. The RAD TRAC is also designed to be used with the RAD BOARD and facilitates placement and removal of the RAD BOARD with the patient still on the table. The RAD REST is a disposable, single-use product designed to stabilize the arm by ergonomically supporting the elbow, forearm and wrist during radial procedures. The purchase price was approximately $2.5 million. The initial accounting for this acquisition has not yet been completed.

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets. The carrying amount of goodwill increased approximately $381,000 for the nine months ended September 30, 2013 due to an adjustment related to a previous acquisition (see Note 5).

Other intangible assets at September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

	September 30, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	8,906	$	(2,298	)	$	6,608
Distribution agreements	5,176		(1,660		)	3,516
License agreements	2,733		(1,156		)	1,577
Trademarks	7,255		(1,719		)	5,536
Covenants not to compete	1,029		(339		)	690
Customer lists	20,204		(10,213		)	9,991
Royalty agreements	267		(267		)	—
Total	$	45,570	$	(17,652	)	$	27,918

	December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	7,843	$	(2,045	)	$	5,798
Distribution agreements	5,176		(1,301		)	3,875
License agreements	2,733		(861		)	1,872
Trademarks	7,311		(1,362		)	5,949
Covenants not to compete	1,035		(160		)	875
Customer lists	20,468		(8,038		)	12,430
Royalty agreements	267		(267		)	—
Total	$	44,833	$	(14,034	)	$	30,799

Aggregate amortization expense was approximately $3.4 million and $10.4 million for the three and nine-month periods ended September 30, 2013, respectively, and approximately $1.9 million and $5.7 million for the three and nine-month periods ended September 30, 2012, respectively.

Estimated amortization expense for intangible assets for the next five years consisted of the following as of September 30, 2013 (in thousands):

Year Ending December 31
Remaining 2013	$	3,363
2014	12,684
2015	12,140
2016	11,515
2017	11,150

We evaluate long-lived assets, including amortizing intangible assets, for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. We perform the impairment analysis at the asset group for which the lowest level of identifiable cash flows are largely independent of the cash flows of other assets and liabilities. We compared the carrying value of the amortizing intangible assets acquired in our Ostial acquisition in January 2012 (see Note 5) to the undiscounted cash flows expected to result from the asset group and determined that the carrying amount was not recoverable. We then determined the fair value of the amortizing assets related to the Ostial acquisition based on estimated future cash flows discounted back to their present value using a discount rate that reflects the risk profiles of the underlying activities. Some of the factors that influenced our estimated cash flows were slower than anticipated sales growth in the products acquired from our Ostial acquisition and uncertainty about future sales growth. The excess of the carrying value compared to the fair value was recognized as an intangible asset impairment charge. During the three months ended September 30, 2013, we recorded an impairment charge of approximately $8.1 million, which was offset by approximately $3.8 million of fair value reductions to the contingent consideration liability.

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Document and Entity Information Document	9 Months Ended
	Sep. 30, 2013	Nov. 05, 2013
Entity Information [Line Items]
Entity Registrant Name	MERIT MEDICAL SYSTEMS INC
Entity Central Index Key	0000856982
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		42,746,098

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Commitment and Contingencies

9 Months Ended

Sep. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitment and Contingencies

Commitments and Contingencies.

Litigation. In the ordinary course of business, we are involved in various claims and litigation matters. These claims and litigation matters may include actions involving product liability, intellectual property, contractual disputes and employment matters. We do not believe that any such actions are likely to be, individually or in the aggregate, material to our business, financial condition, results of operations or liquidity. However, in the event of unexpected further developments, it is possible that the ultimate resolution of these matters, or other similar matters, if unfavorable, may be materially adverse to our business, financial condition, results of operations or liquidity. Legal costs for these matters, such as outside counsel fees and expenses, are charged to expense in the period incurred.