ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,132, issued on Feb. 3, was assigned to Covidien LP (Mansfield, Mass.).

"Tissue resecting instrument" was invented by Timothy J. Wood (Wilmington, Mass.), Dalia Leibowitz (Cambridge, Mass.) and Peter Marshall (Bolton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tissue-resecting end effector assembly includes an outer shaft having a hub housing disposed about a proximal end portion thereof, an inner shaft rotatably disposed within the outer shaft and having a distal driver disposed about a proximal end portion thereof, a proximal driver, a retainer cap, and an RFID chip. The proximal driver is slidably coupled to the distal driver in fixed r...