ALEXANDRIA, Va., July 23 -- United States Patent no. 12,364,500, issued on July 22, was assigned to COVIDIEN LP (Mansfield, Mass.).
"Tissue resecting instrument" was invented by Steven J. Barletta (Tewksbury, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An end effector assembly of a tissue-resecting device is disclosed. The end effector assembly includes an outer shaft and an inner shaft. The outer shaft includes an outer shaft window defined within a distal end portion thereof. The outer shaft window defines an outer shaft cutting edge extending about at least a portion of a perimeter thereof. The outer shaft cutting edge includes a plurality of teeth. The inner shaft is disposed within and rotatabl...