ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,751,604, issued on Oct. 6, was assigned to EndoVista Inc. (Chicago).

"Rotary knob assembly for a steerable medical device" was invented by Yun-Siung Tony Yeh (Vernon Hills, Ill.), Tahua Yang (Chicago), David G. Matsuura (Solana Beach, Calif.), Belinko K. Matsuura (Encitas, Calif.) and Philip J. Simpson (Escondido, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device for use with a steerable medical device comprises a steering shaft rotatable about a longitudinal axis thereof, a first steering cam is affixed to the steering shaft to rotate in unison therewith. A second steering cam is mounted on the steering shaft and freely rotatable ab...