ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,619, issued on April 29, was assigned to PACESETTER INC. (Sylmar, Calif.).

"Header assembly having threadless interconnection" was invented by Joseph Hansen (Los Angeles), Keith Victorine (Santa Clarita, Calif.) and Wesley Alleman (Santa Clarita, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A leadless biostimulator, such as a leadless cardiac pacemaker, having a header assembly is described. The header assembly includes a helix mount mounted on a flange. An inner surface of the helix mount conforms to an outer surface of the flange, and the outer surface has a non-circular profile such that the conforming surfaces interfere with rotation of ...