Board of Directors

Henry A. Plain, Jr.

Chairman of the Board

Mr. Plain has been the Chairman of the board of directors since August 2000. Since August 2007, Mr. Plain has been a Partner with Morgenthaler Ventures. Since July 2000, Mr. Plain has been the Vice Chairman of the board of directors of The Foundry, which identifies and develops new medical device technologies. From February 1993 to November 1999, Mr. Plain was the President and Chief Executive Officer and a director of Perclose, Inc., a medical device company acquired by Abbott Laboratories in November 1999. Following the acquisition of Perclose by Abbott Laboratories, Mr. Plain served as the President of Perclose and Vice President of Hospital Products Division at Abbott Laboratories until May 2000. Mr. Plain also serves on the boards of directors of Xtent, Inc. and several privately held medical device companies. Mr. Plain holds a B.S. in Business Administration from the University of Missouri, Columbia.

Sanjiv Arora

Director

Mr. Arora has been a member of the board of directors since June 2006. Since August 2003, he has been a managing director with Cargill Ventures, the venture capital arm of Cargill, Incorporated. Prior to joining Cargill Ventures, he spent eight years as an equity analyst covering the medical technology industry for both UBS Warburg (2001-2003) and RBC Capital Markets (1996-2001). Prior to RBC Capital Markets, Mr. Arora held positions with Guidant Corporation, St. Jude Medical and Boston Scientific Corporation. Mr. Arora holds a B.S. in Chemical Engineering from the University of Minnesota, an M.S. in Biomedical Engineering from Duke University and an M.B.A. from Duke University.

Joshua Baltzell

Director

Mr. Baltzell has been a member of the board of directors since October 2004. He currently holds the title of director at Split Rock Partners and has been with the firm since its inception in June 2004. Split Rock Partners is a venture firm focused on early stage investments in health care and software. From 2002 to 2004, Mr. Baltzell was with St. Paul Venture Capital. Prior to joining St. Paul Venture Capital, Mr. Baltzell was an investment banker at Piper Jaffray, where he focused primarily on mergers and acquisitions in the medical device sector. Mr. Baltzell also held various marketing and business development positions with SCIMED/Boston Scientific. Mr. Baltzell holds a B.A. in Economics from St. Olaf College and an M.B.A. from the University of Minnesota’s Carlson School of Management.

Michael A. Bates

Director

Mr. Bates has been a member of the board of directors since August 2007. From January 2005 to January 2007, Mr. Bates served as Chief Financial Officer of St. Francis Medical Technologies, Inc., a medical device company, which was acquired by Kyphon Inc. in January 2007. From April 2000 to October 2004, Mr. Bates served as Vice President of Finance and Administration and Chief Financial Officer of Silicon Genetics, a bioinformatics company. From January 1999 to February 2000, Mr. Bates served as Vice President of Finance and Chief Financial Officer of Collagen Aesthetics, Inc., a medical device company. From 1995 to 1998, Mr. Bates served in various financial positions at Penederm, Inc., a dermatology pharmaceutical company, most recently as its Chief Financial Officer. Mr. Bates also serves on the boards of BARRX Medical, Inc., a privately held medical device company, and Satiety, Inc., a privately held company developing tools to treat obesity. Mr. Bates is a C.P.A., and holds a B.S. in Business Administration from California State University, East Bay and an M.B.A. in Finance from the University of California at Berkeley.

Michael A. Carusi

Director

Mr. Carusi has been a member of the board of directors since July 2001. He has served as a General Partner at Advanced Technology Ventures, a venture capital firm, since October 1998. Mr. Carusi serves on the boards of directors of Xtent, Inc., a publicly traded medical device company, as well as the boards of several privately-held life sciences and medical device companies. Mr. Carusi holds a B.S. in Mechanical Engineering from Lehigh University and an M.B.A. from Dartmouth College.

Roger Marchetti

Director

Mr. Marchetti has been a member of the board of directors since September 2007. He has served as Senior Vice President, Human Resources and Information Management at Amylin Pharmaceuticals, Inc., a biopharmaceutical company, since November 2005. Prior to joining Amylin Pharmaceuticals, Inc., he served as Vice President, Human Resources for Guidant Corporation from July 2002 to October 2005. Prior to this role, he served as Vice President, Finance and Information Systems, Guidant Europe, Middle East, Africa, and Canada, since the beginning of 2001. Mr. Marchetti holds a B.A. from LaSalle University in Philadelphia and an MBA from the Ross School of Business at the University of Michigan. Mr. Marchetti is a Certified Public Accountant.

John G. McCutcheon

Director

Mr. McCutcheon joined Emphasys in November 2000 and has served as Chief Executive Officer, President and Director since that time. Prior to joining Emphasys, Mr. McCutcheon worked at Perclose, Inc., a medical device company, where he held several senior management positions including, most recently, Vice President of Marketing and Sales. Prior to his joining Perclose, Inc., Mr. McCutcheon held various sales and marketing positions at Devices for Vascular Intervention and Baxter Healthcare. Mr. McCutcheon also serves on the board of directors of Disc Dynamics, Inc. and Juniper Medical, Inc. Mr. McCutcheon holds a B.A. degree in Economics from the University of California, Los Angeles and an M.B.A. from the UCLA Anderson Graduate School of Management.

Herm Rosenman

Director

Mr. Rosenman has been a member of our board of directors since September 2007. He currently holds the title of Senior Vice President—Finance and Chief Financial Officer at Gen-Probe Incorporated, global leader in the development, manufacture and marketing of rapid, accurate and cost-effective nucleic acid probe-based products used for the clinical diagnosis of human diseases and for screening donated human blood, and has been with the company since June 2001. Prior to joining Gen-Probe Incorporated, he was President and Chief Executive Officer of Ultra Acquisition Corp., a retail chain and consumer products manufacturer, from 1997 to 2000. Mr. Rosenman serves on the Board of Directors of Infinity Pharmaceuticals, a drug discovery and development company, where he serves as Chairman of the Audit Committee. Mr. Rosenman also serves on the Board of Directors of ARYx Therapeutics, a private drug discovery and development company, where he serves as Chairman of the Audit Committee and as a member of the Corporate Governance Committee. Mr. Rosenman holds a B.B.A. in finance and accounting from Pace University and an M.B.A. in finance from the Wharton School of the University of Pennsylvania.

Richard Spalding

Director

Mr. Spalding has been a member of the board of directors since August 2000. Since January 2000, April 2003 and September 2006, Mr. Spalding has been a general partner of venture capital firms ABS Ventures, Thomas Weisel Healthcare Venture Partners and Kearny Venture Partners, respectively. Prior to ABS Ventures, Mr. Spalding was the chief financial officer of Portal Software and Fusion Medical Technologies, the head of West Coast investment banking for Alex. Brown and Sons, and a partner at the law firm of Brobeck, Phleger and Harrison. Mr. Spalding holds a B.A. with honors from Harvard College and a J.D. with honors from Columbia Law School.