ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,219, issued on March 31, was assigned to Biosense Webster (Israel) Ltd. (Yokneam, Israel).

"Steerable sheath with variable curve span" was invented by Raymond Yue-sing Tang (Rosemead, Calif.), Mark T. Stanley (Seal Beach, Calif.) and Christopher T. Beeckler (Brea, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A guiding sheath assembly has a shaft that is operable to define more than one deflection curvature and defines a lumen to slidably receive a cardiovascular catheter. The guiding sheath assembly includes a proximal section, a distal section, and a stiffener member. The proximal section has a proximal shaft that defines a proximal lumen...