• Boston Scientific (Natick, Massachusetts) said that Ursula Burns and Kristina Johnson have resigned from the company's board after accepting senior appointments in industry and government, respectively. Burns has been named CEO of Xerox, effective July 1, and Johnson has been confirmed by the U.S. Senate as Under Secretary in the Department of Energy. Boston Scientific makes interventional medical products.

• Steven Smith was named VP of marketing and business development for BSD Medical (Salt Lake City). Smith most recently was director, business development, for Bard Access Systems. BSD Medical specializes in biomedical design.

• Walter Groszewski was named VP of business development of Medsphere Systems (Carlsbad, California). From 1984 to 2009, Groszewski worked at IBM as a certified consultant with extensive project management experience. Medsphere is a provider of open source electronic health records.

• Eric Schadt, PhD, was named chief scientific officer of Pacific Biosciences (Menlo Park, California). Previously, Schadt was executive scientific director of genetics at Rosetta Inpharmatics. Pacific Biosciences is developing third-generation DNA sequencing technology.

• Urovalve (Newark, New Jersey) has named Martin Coyne as senior business advisor to the company's CEO and board of directors. Previously, Coyne was executive VP of the commercial photography group for Eastman Kodak. Urovalve specializes in urinary flow and control products.