ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,574, issued on March 4, was assigned to Medical Instrument Development Laboratories Inc. (San Leandro, Calif.).

"Aspirating cutter and method of use" was invented by Erik William Peterson (Walnut Creek, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ophthalmic surgical cutting apparatus for cutting biological material including a handle, an outer tube attached to the handle and having a closed tip, a port formed in a side wall of the outer tube with a cusp formed by two or more intersecting surfaces, and an inner tube slidable within the outer tube and having a longitudinal axis and an open tip. The inner tube is in fluid communication wit...