-----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,
 SxHuhXfLFaONuZaef4bsVDd3/7X6GWnoL9fH1IUIABnALyosrnE2AJmanagcOitt
 zVlLwJHP+KQv9h9SXhtbMA==

<SEC-DOCUMENT>0001209191-10-045406.txt : 20100908
<SEC-HEADER>0001209191-10-045406.hdr.sgml : 20100908
<ACCEPTANCE-DATETIME>20100908150643
ACCESSION NUMBER:		0001209191-10-045406
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100907
FILED AS OF DATE:		20100908
DATE AS OF CHANGE:		20100908

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMPSON DAVID J
		CENTRAL INDEX KEY:			0001245907

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33744
		FILM NUMBER:		101062125

	MAIL ADDRESS:	
		STREET 1:		C/O REGENERATION TECHNOLOGIES INC
		STREET 2:		1162 RESEARCH CIRCLE
		CITY:			ALACHUA
		STATE:			FL
		ZIP:			32615

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRANS1 INC
		CENTRAL INDEX KEY:			0001230355
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		411 LANDMARK DRIVE
		CITY:			WILMINGTON
		STATE:			NC
		ZIP:			28412-6303
		BUSINESS PHONE:		910-509-3100

	MAIL ADDRESS:	
		STREET 1:		411 LANDMARK DRIVE
		CITY:			WILMINGTON
		STATE:			NC
		ZIP:			28412-6303
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c05735_4x0.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-09-07</periodOfReport>

    <issuer>
        <issuerCik>0001230355</issuerCik>
        <issuerName>TRANS1 INC</issuerName>
        <issuerTradingSymbol>TSON</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001245907</rptOwnerCik>
            <rptOwnerName>SIMPSON DAVID J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRANS1, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>301 GOVERNMENT CENTER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-09-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1181</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.47</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By David J. Simpson Revocable Living Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <ownerSignature>
        <signatureName>/s/ Bruce Feuchter, attorney-in-fact</signatureName>
        <signatureDate>2010-09-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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