ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,260, issued on Jan. 13, was assigned to W. L. Gore & Associates Inc. (Newark, Del.).

"Releasable knots for medical device delivery" was invented by Milton C. Cato (Phoenix) and Karl R. Chung (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various aspects of the present disclosure are directed toward apparatuses, systems and methods that include an implantable medical device an actuation line configured to steer the implantable medical device. The apparatuses, systems and methods may also include a releasable knot including portions of a tether to couple the actuation line to the implantable medical device."

The patent was filed on Aug. 31, ...