Hansen Medical Featured in Live Case Transmission During Heart Rhythm Congress 2007

Patient Suffering From Atrial Fibrillation to Be Treated Utilizing Robotic Catheter Navigation System LONDON--(Marketwire - October 29, 2007) - Hansen Medical, Inc. (NASDAQ: HNSN) announced today that its Sensei(TM) Robotic Catheter System will be used during a complex ablation procedure to treat atrial fibrillation that will be transmitted live during the Heart Rhythm Congress 2007. The live case will be transmitted from the Wessex Cardiothoracic Centre at the Southampton General Hospital, October 30, 9:00 a.m., to the Congress' main auditorium at the Hilton Birmingham Metropole Hotel. During the procedure, Wyn Davies, M.D., consultant cardiologist for St. Mary's Hospital of London, and his team will use the Sensei system to guide an ablation catheter in the treatment of a patient suffering from atrial fibrillation (AF). In addition, Professor John Morgan, consultant cardiologist at Southampton General Hospital will be in attendance. According to the European Society of Cardiology (ESC), AF is the most common heart rhythm disturbance and it increases the risk for stroke, heart failure and all causes of death, especially in women. "We will use the revolutionary robotic catheter navigation system to guide and accurately control the catheters during this complex ablation procedure," said Dr. Davies. "I have been using the Sensei technology in my clinical practice because it allows for precision and control of catheter movement, which is difficult to achieve manually. During this case we will demonstrate how this exciting advance offers the potential to treat more patients suffering from AF and ultimately reduce their clinical risk associated with this condition." With the Sensei system, physicians of differing skill level are able to successfully employ this remote catheter navigation system within their practices. Additionally, physicians in the European Union are able to combine the use of the Sensei system's remote navigation capability with state-of-the-art irrigated catheters to deliver more effective therapy during complex cardiac procedures. In Europe, Hansen Medical is the only company to provide robotic control of irrigated ablation catheter technology for atrial fibrillation because its remote navigation system has an open architecture. This open architecture permits the use of irrigated catheters from third party manufacturers, which are approved to treat atrial fibrillation in Europe. Irrigated catheters prevent the formation of dangerous clots on the tip of the catheter during ablation procedures. As a result of this technology, ablation procedures and treatment in Europe are more effective and the risk of stroke is expected to be significantly decreased. The combination of the Sensei system's ability to accurately position catheters at targeted cardiac anatomy along with the more effective lesions created by irrigated catheters should have a powerful effect on procedure outcomes. "The prevalence of AF in Europe and worldwide is growing and we feel it is imperative that electrophysiologists of all skill levels are equipped with effective solutions to help them detect, diagnose and treat heart disease earlier," said Frederic Moll, M.D., founder and CEO of Hansen Medical. "The adoption of our technology into treatment centers of varying sizes is extremely encouraging to us in our efforts to help improve clinical outcomes." Hansen Medical has installed a total of five Sensei(TM) Robotic Catheter systems in the United States and four in Europe since receiving both FDA and CE Mark clearance in May 2007. The installation sites range from large teaching institutions and university medical centers to community hospitals. The Sensei system is designed to allow physicians to place mapping catheters in hard-to-reach anatomical locations within the heart easily, accurately and with stability during the diagnostic phase of complex cardiac arrhythmia treatment. The system is compatible with fluoroscopy, ultrasound, 3D surface map and patient electrocardiogram data. About Hansen Medical, Inc. Hansen Medical, based in Mountain View, Calif., was founded in 2002 to develop products and technology using robotics for the accurate positioning, manipulation and stable control of catheters and catheter-based technologies. Additional information can be found at www.hansenmedical.com. This press release contains forward-looking statements that are subject to a number of risks and uncertainties, including statements about the potential for success and timing of sales in the United States and Europe of the Sensei System and Artisan Control Catheter. Actual results may differ materially from those set forth in this press release due to the risks and uncertainties inherent in our business, including potential safety issues; the scope of potential use of our products; the scope and validity of intellectual rights applicable to our products; competition from other companies; our ability to obtain additional financing to support our operations; our ability to successfully launch and market our product; and other risks detailed in the "Risk Factors" section of our Quarterly Report on Form 10Q for the quarter ended June 30, 2007. We undertake no obligation to revise or update information herein to reflect events or circumstances in the future, even if new information becomes available. Hansen Medical has pending trademark applications for "Hansen Medical," "Sensei," "Artisan," "Hansen Artisan," as well as the Hansen Medical "heart design" logo. Media Contact: Amy Cook 925.552.7893 amy_cook@hansenmedical.com Investor Contact: Steven Van Dick 650.404.5800 steve_vandick@hansenmedical.com --- End of Message --- Hansen Medical, Inc. 380 North Bernardo Avenue Mountain View United States of America WKN: A0LHLD; ISIN: US4113071017; ;