CHELMSFORD, Mass.--(BUSINESS WIRE)--May 31, 2006--ZOLL Medical Corporation (NASDAQ: ZOLL - News), a manufacturer of resuscitation devices and related software solutions, today announced that William J. Mercer has been appointed to its Board of Directors. With this appointment, ZOLL has expanded its Board of Directors to seven members. Mr. Mercer is currently the principal of Avocet Ventures, LLC, a private equity firm specializing in the healthcare and life sciences sectors.