ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,461, issued on July 15.

"Annuloplasty device" was invented by Olli Keranen (Bjarred, Sweden), Hans-Reinhard Zerkowski (Kreuzlingen, Switzerland), Johannes Jung (Pforzheim, Germany) and Jani Virtanen (Soderkulla, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An annuloplasty device is disclosed comprising first and second support rings having a coiled configuration, and respective first and second retention units, the first support ring transitions to the second support ring over a transition section, the transition section is adapted to be arranged at a commissure of the heart valve leaflets, the first and second support rings extend in resp...