SAN FRANCISCO — CardioMEMS Inc., an Atlanta-based medical device company, tapped Cooley for counsel on its acquisition by St. Jude Medical Inc. for $375 million. St. Jude turned to Gibson, Dunn & Crutcher for advice on the matter.

The partnership between Cooley and CardioMEMS traces back more than a decade. Emerging companies partner Frank Rahmani, who led the deal, has worked with CardioMEMS founder Dr. Jay Yadav, a cardiologist and entrepreneur, since he was a summer associate at Cooley in 1997. They collaborated on the formation of Yadav’s first company, AngioGuard Inc., which was acquired by Johnson & Johnson in 1999. He founded CardioMEMS in 2001.