Tensys® Medical validates accuracy of Non-Invasive, Real-Time Blood Pressure Monitor with presentation of Temporal Performance data at the International Anesthesia Research Society (IARS) annual meeting

San Diego, CA | January 22, 2004 -- Gregory Janelle, M.D. and Nikolaus Gravenstein, M.D., of Shands Hospital at the University of Florida, will present a 25-adult patient study which investigates the long term stability of the T-Line® compared to conventional Invasive Radial Arterial Cannulation (A-Line). This data demonstrates that there is no clinically relevant degradation of performance or accuracy over the course of monitoring with the T-Line® in comparison to an A-line. The poster will be presented in the category of Equipment & Monitoring at the annual IARS Clinical and Scientific Congress. A moderated Poster Discussion is scheduled for Monday, March 29, 2004 from 8:00 AM to 9:30 AM in Grand Ballroom G-J.

"I've experienced the value of the T-Line® not only in research but also in my clinical practice. The beat-to-beat information and real-time waveform are obviously significant, yet the unwavering performance over time is of equal importance," commented Gregory Janelle, M.D., Chief, Division of Cardiothoracic Anesthesiology, University of Florida, Gainesville. "There is no degradation in accuracy or performance of the T-Line® compared to A-line measurements. Moreover, there is no incremental maintenance such as flushing or catheter repositioning, associated with the T-Line® system," continued Dr. Janelle.

"The T-Line® affords the anesthesiologist clinically accurate, beat-to-beat data during periods of suspected hemodynamic instability and also catches those unanticipated hemodynamic events due to its tireless ability to track pressure over the duration of the procedure," said Michael J. Martin, Chief Executive Officer, Tensys® Medical. "The T-Line® offers assurance from the moment it"s applied to the moment it's removed," continued Martin.

The International Anesthesia Research Society (IARS) will hold its 78th annual Clinical & Scientific Congress in Tampa, FL, running March 27 "31, 2004. For more information about this meeting, please visit www.iars.org.

About Tensys® Medical

Tensys® Medical, Inc. is the leader in real-time blood pressure management. The Tensys® T-Line®, the company's lead product, was cleared by the FDA in November 2002 as a medical device providing anesthesiologists with a non-invasive, continuous real-time blood pressure management tool.

The Tensys T-Line® measures a patient's blood pressure at the radial artery. It offers anesthesiologists better, more effective control over patient safety during surgery by allowing them to quickly monitor and manage blood pressure variations. The T-Line®, via its continuous, real-time data, is far more effective than the traditional cuff method and has clinically equivalent accuracy to that of the arterial line (A-line). The device is based on Tensymetry®, the company's proprietary and patented technology for non-invasively extracting the continuous, beat-to-beat pressure waveform from the radial artery without the use of any external calibration device. The science of Tensymetry® is broadly protected and is the result of over six years of research and development. Prior to its official product launch in March 2003, the Tensys® T-Line® was tested in approximately 500 surgical cases nationwide.

Tensys® Medical is based in San Diego, California and was founded in November 1995. For more information, please visit the company's Web site at www.tensysmedical.com.

Company Contacts:

Bill Markle
Vice President, Marketing & Business Development
Tensys® Medical, Inc.
858.522.1941 x211
bmarkle@tensysmedical.com

Media Contacts:

James Forte or Maureen O'Donnell
Townsend Inc.
858.457.4888
jforte@townsendinc.com
modonnell@townsendinc.com