RITA Medical to Present at the 2005 Thomas Weisel Partners Healthcare ConferenceFREMONT, Calif., Sept. 2 /PRNewswire-FirstCall/ -- RITA Medical Systems, Inc. (Nasdaq: RITA), a publicly-traded medical device company focused solely on cancer therapies, today announced that it has been invited to present at the Thomas Weisel Partners Healthcare Conference, which will take place at the Four Seasons Hotel in Boston. The Company is scheduled to discuss its business strategy and historical financial performance on Friday, September 9, 2005 at 2:40 p.m.

Attendance at the conference is by invitation only. RITA Medical will offer a live audio webcast of its presentation which may be accessed at the Company's website at www.ritamedical.com. An archived replay will also be available immediately following the presentation at the Company's website which will remain available for 30 days.

About RITA Medical Systems, Inc.

RITA Medical Systems develops, manufactures and markets innovative products for cancer patients including radiofrequency ablation (RFA) systems for treating cancerous tumors as well as percutaneous vascular and spinal access systems. The Company's oncology product lines include implantable ports, some of which feature its proprietary Vortex^® technology; tunneled central venous catheters; safety infusion sets and peripherally inserted central catheters used primarily in cancer treatment protocols. The proprietary RITA system uses radiofrequency energy to heat tissue to a high enough temperature to ablate it or cause cell death. In March 2000, RITA became the first RFA Company to receive specific FDA clearance for unresectable liver lesions in addition to its previous general FDA clearance for the ablation of soft tissue. In October 2002, RITA again became the first company to receive specific FDA clearance, this time, for the palliation of pain associated with metastatic lesions involving bone. The RITA Medical Systems website is at www.ritamedical.com.

SOURCE RITA Medical Systems, Inc.
09/02/2005


CONTACT: Stephen Pedroff, Vice President of Marketing Communications of RITA Medical Systems, Inc., +1-510-771-0400, or spedroff@ritamed.com; or Doug Sherk, dsherk@evcgroup.com, or Jennifer Beugelmans, both at +1-415-896-6820, or Steve DiMattia, +1-646-277-8706, or sdimattia@evcgroup.com, all of EVC Group, for RITA Medical Systems, Inc.
Web site: http://www.ritamedical.com
(RITA)