ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,187, issued on March 25, was assigned to Centricity Vision Inc. (Carlsbad, Calif.).

"Suction cup design for capsulotomy device" was invented by Christopher Guild Keller (El Cerrito, Calif.) and David Wong Manhin Sretavan (Tiburon, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device is described herein for performing capsulotomies that improves suction uniformity and produces rolled capsulotomy edges. The device includes a suction cup that forms a tapered circumferential suction chamber which enables suction to be applied to a tissue in a first direction. The tapered circumferential suction chamber decreases in cross-sectional area from a...