-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 AaFEujqN00L8tI4CcjnOaqOWwxGDDfu8h8KQzmYM/JjtyAdGbfOdtVsNuPehvcH8
 i+GNNNTgk9QpaXpFfETtgQ==

<SEC-DOCUMENT>0000064670-06-000008.txt : 20060213
<SEC-HEADER>0000064670-06-000008.hdr.sgml : 20060213
<ACCEPTANCE-DATETIME>20060213175353
ACCESSION NUMBER:		0000064670-06-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050407
FILED AS OF DATE:		20060213
DATE AS OF CHANGE:		20060213

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MEDTRONIC INC
		CENTRAL INDEX KEY:			0000064670
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
		IRS NUMBER:				410793183
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			0430

	BUSINESS ADDRESS:	
		STREET 1:		710 MEDTRONIC PKWY
		STREET 2:		MS LC300
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55432
		BUSINESS PHONE:		7635144000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JACKSON SHIRLEY A
		CENTRAL INDEX KEY:			0001168019

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07707
		FILM NUMBER:		06605428

	BUSINESS ADDRESS:	
		STREET 1:		C/O RENSSELAER POLYTECHNIC INSTITUTE
		STREET 2:		110 EIGHT ST, TROY BLD., 3RD FL.
		CITY:			TROY
		STATE:			NY
		ZIP:			12180
		BUSINESS PHONE:		9085321971
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-04-07</periodOfReport>

    <issuer>
        <issuerCik>0000064670</issuerCik>
        <issuerName>MEDTRONIC INC</issuerName>
        <issuerTradingSymbol>MDT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001168019</rptOwnerCik>
            <rptOwnerName>JACKSON SHIRLEY A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>RENSSELAER POLYTECHNIC INSTITUTE</rptOwnerStreet1>
            <rptOwnerStreet2>110 8TH ST  TROY BUILDING</rptOwnerStreet2>
            <rptOwnerCity>TROY</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>12180</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-04-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>52.31</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2956.306</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>Neil P. Ayotte, Attorney-in-fact</signatureName>
        <signatureDate>2006-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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