ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,251, issued on Jan. 13, was assigned to Spineology Inc. (St. Paul, Minn.).

"System and method for performing percutaneous spinal interbody fusion" was invented by Karen Roche (Stillwater Township, Minn.), Clint Boylan (Minneapolis), Dan McPhillips (Ham Lake, Minn.), Tim Walnofer (Stillwater, Minn.) and Joseph Gleason (Eagan, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of performing percutaneous interbody spinal fusion on adjacent vertebrae in a patient including the steps of: creating a percutaneous access opening on the patient, using indirect visualization to establish a surgical path through the access opening, creating a cavity...