<SUBMISSION>
<ACCESSION-NUMBER>0001181431-06-047652
<TYPE>3
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20060313
<FILING-DATE>20060815
<DATE-OF-FILING-DATE-CHANGE>20060815
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>DIAMETRICS MEDICAL INC
<CIK>0000895380
<ASSIGNED-SIC>3845
<IRS-NUMBER>411663185
<STATE-OF-INCORPORATION>MN
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>2658 PATTON RD
<CITY>ROSEVILLE
<STATE>MN
<ZIP>55113
<PHONE>6516398035
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2658 PATTON ROAD
<CITY>ROSEVILLE
<STATE>MN
<ZIP>55113
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>GALLEBERG PAUL A
<CIK>0001214984
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>3
<ACT>34
<FILE-NUMBER>000-21982
<FILM-NUMBER>061034406
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>2160 EAST GRAND AVENUE
<CITY>EL SEGUNDO
<STATE>CA
<ZIP>90245-1022
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd127532.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2006-03-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000895380</issuerCik>
        <issuerName>DIAMETRICS MEDICAL INC</issuerName>
        <issuerTradingSymbol>DMMC.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001214984</rptOwnerCik>
            <rptOwnerName>GALLEBERG PAUL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2721 VIA ELEVADO</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PALOS VERDES ESTATES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90274</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Paul A. Galleberg</signatureName>
        <signatureDate>2006-08-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
