ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,331, issued on July 15, was assigned to Boston Scientific Scimed Inc. (Maple Grove, Minn.).

"Device for tissue removal" was invented by Shannon S. Kenwood (Milford, Mass.), Peter L. Dayton (Brookline, Mass.), Katharine Eckerline (Plymouth, Minn.), Wei Li Fan (San Francisco), Douglas Melanson (Natick, Mass.), Mark Bates (Plymouth, Mass.), Gaurav Rohatgi (Waltham, Mass.), Alex Broerman (Somerville, Mass.), Benjamin Peterson (Cambridge, Mass.), Jeff Gray (Sudbury, Mass.) and Barry Weitzner (Acton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A medical device that comprises a rim defining a loop in a plane and defining a width measured perpendic...