ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,580, issued on Nov. 3, was assigned to BioBolt Medical Corp. (Tucson, Ariz.).

"Medical device for joining materials" was invented by Mark Y. Hirotsuka (San Jose, Calif.), William R. George (Santa Cruz, Calif.), Joseph R. Rimsa (Palo Alto, Calif.) and Geoffrey C. Gurtner (Portola Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A medical device for joining materials is provided. The device comprises a piercing element configured to penetrate materials to be joined. The piercing element is sufficiently sharp to penetrate materials to be joined and comprises a hollow interior along at least a portion of its length configured to distal advan...