ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,520, issued on June 2, was assigned to ARTHREX INC. (Naples, Fla.).

"Suture passer and methods of tissue repair" was invented by Nathanael I. Gamso (Bonita Springs, Fla.), Thomas Dooney Jr. (Naples, Fla.), Andrew C. Petry (Naples, Fla.), Shaun G. Leblanc (Naples, Fla.) and Jennifer Brooks (Naples, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for tissue repairs with mattress stitch are disclosed. A mattress stitch is created with a suture passer and a suturing construct using only one portal and without shuttling steps. The suture passer is provided with two sharp teeth or tines that pierce tissue (or tissue and associated graft) at two...