Net revenues

The Company primarily generates revenue from the sale of medical devices including single use disposable devices and, to a lesser extent, reusable devices, instruments and capital equipment. Revenue is recognized when obligations under the terms of a contract with the Company’s customer are satisfied; this occurs upon the transfer of control of the products. Generally, transfer of control to the customer occurs at the point in time when the Company’s products are shipped from the manufacturing or distribution facility. For the Company’s Original Equipment and Development Services ("OEM") segment, most revenue is recognized over time because the OEM segment generates revenue from the sale of custom products that have no alternative use and the Company has an enforceable right to payment to the extent that performance has been completed. The Company markets and sells products through its direct sales force and distributors to customers within the following end markets: (1) hospitals and healthcare providers; (2) other medical device manufacturers; and (3) home care providers such as pharmacies, which comprised 87%, 10% and 3% of consolidated net revenues, respectively, for the three months ended March 31, 2019. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. With respect to the custom products sold in the OEM segment, revenue is measured using the units produced output method. Payment is generally due 30 days from the date of invoice.

The following table disaggregates revenue by global product category for the three months ended March 31, 2019 and April 1, 2018.



	Three Months Ended
	March 31, 2019		April 1, 2018
	(Dollars in thousands)
Vascular access	$	143,897	$	144,028
Anesthesia	80,252		84,922
Interventional	103,184		90,142
Surgical	86,719		85,621
Interventional urology	59,731		42,300
OEM	54,238		45,854
Other₍₁₎	85,563		94,363
Net revenues ₍₂₎	$	613,584	$	587,230

(1) Revenues in the "Other" category in the table above include revenues generated from sales of the Company’s respiratory and urology products. For the three months ended March 31, 2019, the Company reclassified its cardiac products from "Other" to "Interventional". The comparative prior year period has been restated to conform to the current period presentation.

(2)

The product categories listed above are presented on a global basis; in contrast, the Company’s reportable segments are defined exclusively based on the geographic location of segment operations (with the exception of the OEM reportable segment, which operates globally). The Company’s geographically based reportable segments include net revenues from each of the non-OEM product categories listed above.