<SUBMISSION>
<ACCESSION-NUMBER>0000950129-06-003470
<TYPE>NT 10-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20051231
<FILING-DATE>20060331
<DATE-OF-FILING-DATE-CHANGE>20060331
<EFFECTIVENESS-DATE>20060331
<FILER>
<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>
<FILING-VALUES>
<FORM-TYPE>NT 10-K
<ACT>34
<FILE-NUMBER>000-21982
<FILM-NUMBER>06727900
</FILING-VALUES>
<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>
</FILER>
<DOCUMENT>
<TYPE>NT 10-K
<SEQUENCE>1
<FILENAME>v19180ntnt10vk.htm
<DESCRIPTION>DIAMETRICS MEDICAL, INC. - 12/31/2005
<TEXT>
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<TD width="1%" style="border-left: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
<TD align="center" valign="top" style="border-top: 1px solid #000000">OMB APPROVAL</TD>
<TD width="1%" style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
</TR>

<TR valign="bottom">
<TD width="1%" style="border-left: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
<TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">OMB Number:&nbsp;3235-0058</DIV></TD>
<TD width="1%" style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
</TR>

<TR valign="bottom">
<TD width="1%" style="border-left: 1px solid #000000">&nbsp;</TD>
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Expires:&nbsp;March&nbsp;31, 2006</DIV></TD>
<TD width="1%" style="border-right: 1px solid #000000">&nbsp;</TD>
</TR>

<TR valign="bottom">
<TD width="1%" style="border-left: 1px solid #000000">&nbsp;</TD>
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Estimated average burden
hours per response ... 2.50</DIV></TD>
<TD width="1%" style="border-right: 1px solid #000000">&nbsp;</TD>
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<TD nowrap align="left" colspan="3" style="border-top: 1px solid #000000">&nbsp;</TD>
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<TD width="1%" style="border-left: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
<TD align="center" valign="top" style="border-top: 1px solid #000000">SEC FILE NUMBER<BR>0-21982</TD>
<TD width="1%" style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
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<TD width="1%" style="border-left: 1px solid #000000">&nbsp;</TD>
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD width="1%" style="border-right: 1px solid #000000">&nbsp;</TD>
</TR>

<TR valign="bottom" style="font-size: 2pt">
<TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
<TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
<TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
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<TD width="1%" style="border-left: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
<TD align="center" valign="top" style="border-top: 1px solid #000000">CUSIP
NUMBER<BR>
252532 10 6</TD>
<TD width="1%" style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
</TR>

<TR style="font-size: 1px" valign="bottom">
<TD width="1%" style="border-left: 1px solid #000000">&nbsp;</TD>
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD width="1%" style="border-right: 1px solid #000000">&nbsp;</TD>
</TR>

<TR style="font-size: 1px" valign="bottom">
<TD nowrap align="left" colspan="3" style="border-top: 1px solid #000000">&nbsp;</TD>
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</DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 1pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>FORM 12b-25</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>NOTIFICATION OF LATE FILING</B>
</DIV>




<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TD width="10%">&nbsp;</TD>
<TD width="2%">&nbsp;</TD>
<TD width="10%">&nbsp;</TD>
<TD width="8%">&nbsp;</TD>
<TD width="2%">&nbsp;</TD>
<TD width="69%">&nbsp;</TD>
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<TR valign="bottom">
<TD nowrap valign="top"><I>(Check one):</I></TD>
<TD>&nbsp;</TD>
<TD colspan="4" valign="top" align="left">
<FONT face="wingdings">&#120;</FONT>&nbsp; Form&nbsp;10-KSB
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;20-F
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;11-K
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;10-Q
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;10-D
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;N-SAR
<FONT face="wingdings">&#111;</FONT>&nbsp; Form&nbsp;N-CSR
</TD>
</TR>
<TR valign="bottom" style="line-height: 6pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
<TD>&nbsp;</TD>
<TD nowrap align="left" valign="top">For Period Ended:</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top" colspan="2">December 31, 2005</TD>
</TR>
<TR style="font-size: 1px">
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD colspan="3" align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD colspan="3" valign="top" align="left"><FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp; Transition Report on Form&nbsp;10-K</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD colspan="3" valign="top" align="left"><FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp; Transition Report on Form&nbsp;20-F</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD colspan="3" valign="top" align="left"><FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp; Transition Report on Form&nbsp;11-K</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD colspan="3" valign="top" align="left"><FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp; Transition Report on Form&nbsp;10-Q</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD nowrap colspan="3" valign="top" align="left"><FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp; Transition Report on Form&nbsp;N-SAR</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="line-height: 6pt"><!-- Blank Space -->
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
<TD>&nbsp;</TD>
<TD colspan="2" align="left" valign="top" nowrap>For the Transition Period Ended:
</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top"></TD>
<TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD colspan="2" align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
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</TABLE>
</DIV>
<P>
<DIV style="width: 100%; border: 1px solid black; padding: 12px;">

<DIV align="center" style="font-size: 10pt; margin-top: 6pt"><I>Read Instruction (on back page) Before Preparing Form. Please Print or Type.</I>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.</B></DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">If the notification relates to a portion of the filing checked above, identify the Item(s) to which
the notification relates:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>PART I &#151; REGISTRANT INFORMATION</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 18pt">Diametrics Medical, Inc.<DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 2pt">Full Name of Registrant
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 18pt">N/A<DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 2pt">Former Name if Applicable
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 18pt"><BR>6245 Bristol Parkway, #263<DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 2pt">Address of Principal Executive Office <I>(Street and Number)</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 18pt">Culver City, California 90230<DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 2pt">City, State and Zip Code
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>PART II &#151; RULES 12b-25(b) AND (c)</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule&nbsp;12b-25(b), the following should be completed. (Check box if appropriate)
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
<TD width="5%">&nbsp;</TD>
<TD width="1%">&nbsp;</TD><!-- VRule -->
<TD width="1%">&nbsp;</TD>
<TD width="3%">&nbsp;</TD>
<TD width="2%">&nbsp;</TD>
<TD width="88%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->

<TR valign="bottom">
<TD valign="middle" rowspan="5"><DIV style="margin-left:15px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>

<TR valign="bottom">
<TD style="border-right: 1px solid #000000">&nbsp;</TD>
<TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="wingdings">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD align="left" valign="top">(a)
</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">The reason described in reasonable detail in Part III of this form could not be
eliminated without unreasonable effort or expense</TD>
</TR>


<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD style="border-right: 1px solid #000000">&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
<TD style="border-right: 1px solid #000000">&nbsp;</TD>
<TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="wingdings">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD align="left" valign="top">(b)
</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">The subject annual report, semi-annual report, transition report on Form&nbsp;10-K, Form&nbsp;20-F, Form&nbsp;11-K, Form&nbsp;N-SAR or Form&nbsp;N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form&nbsp;10-Q or subject distribution report on Form&nbsp;10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and </TD>
</TR>
<TR valign="bottom" style="line-height: 3pt"><!-- Blank Space -->
<TD style="border-right: 1px solid #000000">&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
<TD>&nbsp;</TD>
<TD style="border-right: 1px solid #000000">&nbsp;</TD>
<TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD align="left" valign="top">(c)
</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">The accountant&#146;s statement or other exhibit required by Rule&nbsp;12b-25(c) has been attached if applicable.</TD>
</TR>
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</TABLE>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>PART III &#151; NARRATIVE</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q,10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Diametrics Medical, Inc. (the &#147;Company&#148;) could not file its Annual Report on Form&nbsp;10-KSB for the year ended December&nbsp;31, 2005 (the &#147;Report&#148;) within the prescribed time period because the Company has not yet completed its financial statements for years presented in the Report. The Company undertakes the responsibility to file the Report no later than 15&nbsp;days after its original filing date.</DIV>


<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
<TD width="15%"></TD>
<TD width="1%"></TD>
<TD width="84"></TD>
</TR>
<TR valign="top">
<TD valign="middle" nowrap align="left">SEC 1344 (03-05)</TD>
<TD>&nbsp;</TD>
<TD><B>Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.</B></TD>
</TR>
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-size: 10pt; font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 6pt">(Attach extra Sheets if Needed)<BR>
<B>PART IV &#151; OTHER INFORMATION</B>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">(1)</TD>
<TD width="1%">&nbsp;</TD>
<TD>Name and telephone number of person to contact in regard to this notification</TD>
</TR>
</TABLE>
</DIV>
<DIV align="right">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="98%">
<!-- Begin Table Head -->
<TR valign="bottom">
<TD width="47%">&nbsp;</TD>
<TD width="5%">&nbsp;</TD>
<TD width="8%">&nbsp;</TD>
<TD width="5%">&nbsp;</TD>
<TD width="35%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR style="font-size: 10pt">
<TD align="center" valign="top" style="border-bottom: 1px solid #000000">Heng Chuk&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="center" valign="top" style="border-bottom: 1px solid #000000">(310)&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="center" valign="top" style="border-bottom: 1px solid #000000">745-1652&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD valign="top" align="center"><DIV style="margin-left:0px; text-indent:-0px">(Name)</DIV></TD>
<TD>&nbsp;</TD>
<TD nowrap align="center" valign="bottom">(Area Code)
</TD>
<TD>&nbsp;</TD>
<TD align="center" valign="bottom">(Telephone Number)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">(2)</TD>
<TD width="1%">&nbsp;</TD>
<TD>Have all other periodic reports required under Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934 or Section&nbsp;30 of the Investment Company Act of 1940 during the preceding 12&nbsp;months or for such shorter period that the registrant was required to file such report(s) been filed ? If answer is no, identify report(s).</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent; margin-top: 1pt">
<TD width="1%" nowrap align="left">&nbsp;</TD>
<TD width="1%">&nbsp;</TD>
<TD align="right">Yes&nbsp;<FONT face="wingdings">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;<FONT face="wingdings">&#111;</FONT></TD>
</TR>

<TR>
<TD style="font-size: 6pt">&nbsp;</TD>
</TR>

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;</TD>
<TD width="1%">&nbsp;</TD>
<TD><DIV style="border-bottom: 1px solid #000000; font-size: 10pt">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">(3)</TD>
<TD width="1%">&nbsp;</TD>
<TD>Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent; margin-top: 1pt">
<TD width="1%" nowrap align="left">&nbsp;</TD>
<TD width="1%">&nbsp;</TD>
<TD align="right">Yes&nbsp;<FONT face="wingdings">&#111;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;<FONT face="wingdings">&#120;</FONT></TD>
</TR>

<TR>
<TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;</TD>
<TD width="1%">&nbsp;</TD>
<TD><DIV style="border-bottom: 1px solid #000000; font-size: 10pt">&nbsp;</DIV></TD>
</TR>


<TR>
<TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;</TD>
<TD width="1%">&nbsp;</TD>
<TD>If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.</TD>
</TR>
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV style="border-bottom: 3px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 24pt"><DIV style="border-bottom: 1px solid #000000; font-size: 10pt; width: 75%">Diametrics Medical, Inc.&nbsp;</DIV>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 2pt">(Name of Registrant as Specified in Charter)
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.
</DIV>

<DIV align="center">
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<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Date
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<TD align="left" valign="top">March 31, 2006</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">By</TD>
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<TD align="left" valign="top">/s/ Heng Chuk</TD>
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<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">&nbsp;</TD>
<TD>&nbsp;</TD>
<TD align="left" valign="top">Heng Chuk, Chief Financial Officer and Secretary</TD>
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