ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,358, issued on Nov. 25.

"Rotating fine needle core biopsy device with improved camming subassembly" was invented by Naomi L. Nakao (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "An endoscope biopsy instrument includes a scamming sub assembly located at a proximal end of a handle and adapted to rotate an elongate needle shaft member during an axial motion of an outer handle member and the elongate needle shaft member relative to an inner handle member. Two key elements extend outwardly from a stylist member into corresponding helical guide grooves with interleaved windings in an inner surface of the inner handle member. The helical guide gr...