Seno Medical Elects Joseph C. McNay

SAN ANTONIO, TEXAS — August 4, 2006 – Seno Medical Instruments, Inc., a San Antonio medical device company specializing in the early detection of cancer, announced today Joseph C. McNay of Boston, Massachusetts will join its Board of Directors. McNay joins Seno Medical Instruments at an exciting time for the company. Seno recently announced it has received $3 (M) million dollars in funding to launch commercial operations. This funding will allow the company to further develop patented laser optoacoustic breast imaging technology for commercial use by doctors and hospitals around the world.

McNay currently serves as President of the Boston Securities Analyst Society (BSAS), a non-profit association founded as a forum for the exchange of information in the investment community. It currently serves over 4,500 members. McNay is also the Chairman and Chief Investment Officer and Managing Principal of Essex Investment Management Company, LLC. Prior to founding Essex in 1976, he was Executive Vice President and Director of Endowment Management and Research Corp. for nine years.

McNay, esteemed in the global business community for his investment expertise, is also well-regarded as a leader in the medical community. He currently serves as a Trustee of the Dana Farber Cancer Institute and on the Investment Committee of Children’s Hospital Boston. McNay is head of the Advisory Committee for the Juda Folkman Foundation, which supports Dr. Juda Folkman for his research at Children’s Hospital Boston. In addition to serving on Seno Medical’s Board of Directors, he will continue to serve on the Board of Directors at the biotechnology company, ReGenRx Biopharmaceuticals, Inc.

McNay is admired for sharing his investment knowledge as a Trustee of National Public Radio, the Boston Ballet and the Woods Hole Oceanographic Institution. He is a Yale University graduate with an M.B.A. from the Wharton School of Finance.

“As we persist in growing Seno Medical Instruments, we continue to look for outstanding people like Joe McNay to bring levels of expertise we can depend on to reach our goals,” said Janet Campbell, Seno Medical CEO. “We anticipate Joe’s extensive experience in both investment and medical arenas to positively impact our future growth.”