ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,332, issued on July 15, was assigned to Boston Scientific Scimed Inc. (Maple Grove, Minn.).

"Necrosectomy devices and procedures" was invented by Barry Weitzner (Acton, Mass.), Ryan Hartman (Kingston, Mass.), Peter L. Dayton (Brookline, Mass.) and John B. Golden (Norton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates generally to the field of minimally invasive catheter-based devices and procedures for the removal of necrotic debris. In particular, the present disclosure relates to systems and methods for the removal of necrotic debris from within a walled off necrosis without disrupting or damaging the tissue wa...