AngioDynamics appoints president and CEO; MDMA announces new VP and general counsel; Wright Medical chief operating officer resigns; and more personnel news from around the industry.

The (literally) trials and tribulations of its parent, Tyco International, have been both irrelevant to its strongly performing medical device business, Tyco Healthcare, and maddeningly distracting at the same time. But it has shaped the company's strategy, most notably in moving the company away from acquisitions as an engine of growth, forcing Tyco Healthcare to focus more on R&D and new product development.

Acist Medical Systems is developing fluid delivery systems for contrast media.