<html>
  <head>
    <title>
</title>
</head>
  <body bgcolor="#ffffff">
    <div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>UNITED
        STATES</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman"><strong>SECURITIES
        AND EXCHANGE COMMISSION</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington,
        D.C. 20549</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><strong>Form
        8-K</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><strong>Current
        Report</strong></font><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman"><strong>&#160;</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Pursuant
        to Section 13 or 15(d) of the Securities Exchange Act of
        1934</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date
        of
        Report</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>&#160;</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Date
        of
        earliest event reported):</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>
        August 9, 2005</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 24pt; FONT-FAMILY: Times New Roman"><strong>RITA
        Medical Systems, Inc.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
        name of registrant as specified in its charter)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>000-30959</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Commission
        File Number)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
      <div align="left">
        <table cellpadding="0" cellspacing="0" width="100%">

            <tr>
              <td align="left" valign="top" width="50%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>California</strong></font></div>
              </td>
              <td align="left" valign="top" width="50%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>94-3199149</strong></font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="50%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(State
                  or other jurisdiction of</font></div>
              </td>
              <td align="left" valign="top" width="50%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(I.R.S.
                  Employer Identification No.)</font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="50%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">incorporation)</font></div>
              </td>
              <td align="left" valign="top" width="50%">&#160;</td>
            </tr>

        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>46421
        Landing Parkway</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Fremont,
        CA 94538</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Address
        of principal executive offices, with zip code)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>(510)
        771-0400</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Registrant's
        telephone number, including area code)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Check
        the
        appropriate box below if the Form 8-K filing is intended to simultaneously
        satisfy the filing obligation of the registrant under any of the following
        provisions (</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><em>see</em></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
        General
        Instruction A.2. below):</font></div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 18pt">&#160;</td>
              <td style="WIDTH: 18pt"><font style="DISPLAY: inline; FONT-FAMILY: Wingdings" size="2">o</font></td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Written
                  communications pursuant to Rule 425 under the Securities Act (17
                  CFR
                  230.425)</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 18pt">&#160;</td>
              <td style="WIDTH: 18pt"><font size="2" face="Wingdings">o</font></td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Soliciting
                  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                  240.14a-12)</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 18pt">&#160;</td>
              <td style="WIDTH: 18pt"><font size="2" face="Wingdings">o</font></td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement
                  communications pursuant to Rule 14d-2(b) under the Exchange Act
                  (17 CFR
                  240.14d-2(b))</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 18pt">&#160;</td>
              <td style="WIDTH: 18pt"><font size="2" face="Wingdings">o</font></td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement
                  communications pursuant to Rule 13e-4(c) under the Exchange Act
                  (17 CFR
                  240.13e-4(c))</font></div>
              </td>
            </tr>

        </table>
      </div><br>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
          <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
        </div>
        <div id="PN" style="PAGE-BREAK-AFTER: always">
          <div style="WIDTH: 100%; TEXT-ALIGN: center">&#160;</div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
        </div>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
        2.02.</strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Results
        of Operations and Financial Condition</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On
        August
        9, 2005, RITA Medical Systems, Inc., a Delaware corporation (&#8220;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>RITA</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;),
        hosted a conference call </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">during
        which it discussed information regarding its results of operations and financial
        condition for the three and six months ended June 30, 2005. A copy of RITA&#8217;s
        press release announcing these financial results is attached as Exhibit 99.1
        hereto and incorporated by reference herein.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">During
        the conference call, Joseph DeVivo, RITA&#8217;s President and Chief Executive
        Officer, and Richard DeYoung, RITA&#8217;s Senior Director of Finance, discussed such
        information. A copy of the slides accompanying Mr. DeVivo&#8217;s comments during the
        conference call is attached as Exhibit 99.2 hereto and incorporated by reference
        herein. A script of the certain of the remarks of Mr. DeYoung during the
        conference call is attached as Exhibit 99.3 hereto and incorporated by reference
        herein. </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">An
        audio
        replay of the conference call is available until August 16, 2005 via a link
        provided at RITA&#8217;s website at </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>www.ritamedical.com</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.
        The
        audio replay can be accessed by dialing 800-308-7859 for domestic callers
        and
        402-220-3843 for international callers (no passcode is needed). An online
        replay
        of the webcast will be available for one year immediately following the
        broadcast by accessing the same link. </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
        9.01</strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Financial
        Statements and Exhibits.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 36pt">
              </td>
              <td align="left" style="WIDTH: 36pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)</font></td>
              <td align="left">
                <div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibits:</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 72pt">
              </td>
              <td align="left" style="WIDTH: 36pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font></td>
              <td align="left">
                <div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Press
                  Release of RITA Medical Systems, Inc. dated August 9,
                  2005.</font></div>
              </td>
            </tr>

        </table>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 72pt">&#160;</td>
              <td align="left" style="WIDTH: 36pt"><font size="2">99.2</font></td>
              <td align="left"><font size="2">Conference call slides of RITA Medical
                Systems, Inc. dated August 9, 2005.</font></td>
            </tr>

        </table>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 72pt">&#160;</td>
              <td align="left" style="WIDTH: 36pt"><font size="2">99.3</font></td>
              <td align="left"><font size="2">Scripted remarks of Rich DeYoung
                on August 9,
                2005.</font></td>
            </tr>

        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: -31.5pt" align="left"><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><br></div>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
          <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
        </div>
        <div id="PN" style="PAGE-BREAK-AFTER: always">
          <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">-2-</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
        </div>
      </div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SIGNATURES</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
        to the requirements of the Securities Exchange Act of 1934, the Registrant
        has
        duly caused this report to be signed on its behalf by the undersigned hereunto
        duly authorized.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
        <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

            <tr valign="top" bgcolor="#ffffff">
              <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
              <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
              <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
            </tr>
            <tr valign="top" bgcolor="#ffffff">
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
              <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">RITA
                MEDICAL SYSTEMS, INC.</font></td>
            </tr>
            <tr valign="top" bgcolor="#ffffff">
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
            </tr>
            <tr valign="top" bgcolor="#ffffff">
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date:
                August 11, 2005</font></td>
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">By:&#160;&#160;</font></td>
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">/s/
                <font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Joseph
                DeVivo</font></font></td>
            </tr>
            <tr valign="top" bgcolor="#ffffff">
              <td colspan="2"><font style="FONT-FAMILY: Times New Roman" size="1">&#160;</font></td>
              <td align="left">
                <hr style="COLOR: #000000" align="left" noshade size="2" width="80%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Joseph
                DeVivo</font></td>
            </tr>
            <tr valign="top" bgcolor="#ffffff">
              <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
              <td>
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">President
                  and Chief Executive
                  Officer</font></div>
              </td>
            </tr>

        </table><br></div><br>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
          <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
        </div>
        <div id="PN" style="PAGE-BREAK-AFTER: always">
          <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">-3-</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
        </div>
      </div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>RITA
        MEDICAL SYSTEMS, INC.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>INDEX
        TO EXHIBITS</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div align="left">
        <table cellpadding="0" cellspacing="0" width="100%">

            <tr>
              <td valign="top" width="15%" style="BORDER-BOTTOM: medium none">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Exhibit
                  Number</u></font></div>
              </td>
              <td colspan="2" valign="top" width="85%" style="BORDER-BOTTOM: medium none">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Description</u></font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="15%" style="BORDER-BOTTOM: #000000 thin solid">&#160;</td>
              <td align="left" colspan="2" valign="top" width="85%" style="BORDER-BOTTOM: #000000 thin solid">&#160;</td>
            </tr>
            <tr>
              <td align="left" valign="top" width="15%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font></div>
              </td>
              <td align="left" colspan="2" valign="top" width="85%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Press
                  Release of RITA Medical Systems, Inc. dated August 9,
                  2005.</font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="15%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: -31.5pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.2</font></div>
              </td>
              <td align="left" colspan="2" valign="top" width="85%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: -31.5pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Conference
                  call slides of RITA Medical Systems, Inc. dated August 9,
                  2005.</font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="15%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: -31.5pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.3</font></div>
              </td>
              <td align="justify" colspan="2" valign="top" width="85%" style="BORDER-BOTTOM: #000000 thin solid">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: -31.5pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Scripted
                  remarks of Rich DeYoung on August 9,
                  2005.</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
          <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
        </div>
        <div id="PN">
          <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">-4-</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
        </div>
      </div>
    </div>
  </body>
</html>
{"company-data": {"conformed-name": "RITA MEDICAL SYSTEMS INC", "cik": "0001056421", "assigned-sic": "3845", "irs-number": "943199149", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-30959", "film-number": "051015536"}, "business-address": {"street1": "967 N SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94013", "phone": "6503858500"}, "mail-address": {"street1": "967 NORTH SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94043"}}
UNITED
        STATES
SECURITIES
        AND EXCHANGE COMMISSION
Washington,
        D.C. 20549
Form
        8-K
Current
        Report
Pursuant
        to Section 13 or 15(d) of the Securities Exchange Act of
        1934
Date
        of
        Report
(Date
        of
        earliest event reported):
August 9, 2005
RITA
        Medical Systems, Inc.
(Exact
        name of registrant as specified in its charter)
000-30959
(Commission
        File Number)
California
94-3199149
(State
                  or other jurisdiction of
(I.R.S.
                  Employer Identification No.)
incorporation)
46421
        Landing Parkway
Fremont,
        CA 94538
(Address
        of principal executive offices, with zip code)
(510)
        771-0400
(Registrant's
        telephone number, including area code)
Check
        the
        appropriate box below if the Form 8-K filing is intended to simultaneously
        satisfy the filing obligation of the registrant under any of the following
        provisions (
see
General
        Instruction A.2. below):
o
Written
                  communications pursuant to Rule 425 under the Securities Act (17
                  CFR
                  230.425)
o
Soliciting
                  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                  240.14a-12)
o
Pre-commencement
                  communications pursuant to Rule 14d-2(b) under the Exchange Act
                  (17 CFR
                  240.14d-2(b))
o
Pre-commencement
                  communications pursuant to Rule 13e-4(c) under the Exchange Act
                  (17 CFR
                  240.13e-4(c))
Item
        2.02.
Results
        of Operations and Financial Condition
On
        August
        9, 2005, RITA Medical Systems, Inc., a Delaware corporation ("
RITA
"),
        hosted a conference call
during
        which it discussed information regarding its results of operations and financial
        condition for the three and six months ended June 30, 2005. A copy of RITA's
        press release announcing these financial results is attached as Exhibit 99.1
        hereto and incorporated by reference herein.
During
        the conference call, Joseph DeVivo, RITA's President and Chief Executive
        Officer, and Richard DeYoung, RITA's Senior Director of Finance, discussed such
        information. A copy of the slides accompanying Mr. DeVivo's comments during the
        conference call is attached as Exhibit 99.2 hereto and incorporated by reference
        herein. A script of the certain of the remarks of Mr. DeYoung during the
        conference call is attached as Exhibit 99.3 hereto and incorporated by reference
        herein.
An
        audio
        replay of the conference call is available until August 16, 2005 via a link
        provided at RITA's website at
www.ritamedical.com
.
        The
        audio replay can be accessed by dialing 800-308-7859 for domestic callers
        and
        402-220-3843 for international callers (no passcode is needed). An online
        replay
        of the webcast will be available for one year immediately following the
        broadcast by accessing the same link.
Item
        9.01
Financial
        Statements and Exhibits.
(c)
Exhibits:
99.1
Press
                  Release of RITA Medical Systems, Inc. dated August 9,
                  2005.
99.2
Conference call slides of RITA Medical
                Systems, Inc. dated August 9, 2005.
99.3
Scripted remarks of Rich DeYoung
                on August 9,
                2005.
-2-
SIGNATURES
Pursuant
        to the requirements of the Securities Exchange Act of 1934, the Registrant
        has
        duly caused this report to be signed on its behalf by the undersigned hereunto
        duly authorized.
RITA
                MEDICAL SYSTEMS, INC.
Date:
                August 11, 2005
By:
/s/
Joseph
                DeVivo
Joseph
                DeVivo
President
                  and Chief Executive
                  Officer
-3-
RITA
        MEDICAL SYSTEMS, INC.
INDEX
        TO EXHIBITS
Exhibit
                  Number
Description
99.1
Press
                  Release of RITA Medical Systems, Inc. dated August 9,
                  2005.
99.2
Conference
                  call slides of RITA Medical Systems, Inc. dated August 9,
                  2005.
99.3
Scripted
                  remarks of Rich DeYoung on August 9,
                  2005.
-4-