ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,721, issued on March 17, was assigned to AMBU A/S (Ballerup, Denmark).

"Devices, systems, and methods for treating kidney stones" was invented by Khurshid Ghani (Ann Arbor, Mich.), Jeffrey Plott (Ann Arbor, Mich.) and Morten Sorensen (Ballerup, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "An endoscope includes a handle including a handle housing, an irrigation inlet port adapted to receive irrigation fluid, and an irrigation channel; and an insertion cord extending distally from the handle. The insertion cord includes an insertion tube; a bending section extending from the insertion tube; a distal tip extending from the bending section an...