ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,397, issued on Dec. 30, was assigned to Becton Dickinson and Co. (Franklin Lakes, N.J.).

"Tubular instrument and related devices and methods" was invented by Jonathan Karl Burkholz (Salt Lake City) and Megan Scherich (Salt Lake City).

According to the abstract* released by the U.S. Patent & Trademark Office: "A delivery device to deliver a tubular instrument into a catheter. The delivery device may include the tubular instrument, which may include an annular wall. The annular wall may include a distal end and may form a lumen. The annular wall may include a first annular section and a second annular section proximal to the first annular section. A durometer of the second annular ...