ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,489, issued on May 26, was assigned to SPR THERAPEUTICS INC. (Cleveland).

"Systems and methods to place one or more leads in tissue to electrically stimulate nerves of passage to treat pain" was invented by Joseph W. Boggs (Chapel Hill, N.C.) and Rosemary H. Zang (Avon Lake, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for applying electrical stimulation to a body by an electrode spaced from a target nerve of passage. It has been discovered that pain felt, or perceived to be felt, in a given region of the body can be treated by stimulating muscle close to a "nerve of passage" in a region that is superior (i.e.,...