ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,778, issued on Nov. 4, was assigned to Canon U.S.A. Inc. (Melville, N.Y.).
"Optimized catheter sheath for Rx catheter" was invented by Mark Alan Hamm (Lynnfield, Mass.) and Albert Harold Dunfee (Newbury, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A catheter configured for placement within a bodily lumen, comprises: a catheter sheath defining a first lumen for medical tools; and an exchange segment defining a second lumen for a guidewire. A proximal end of the exchange segment is joined with a distal end of the catheter sheath in a lengthwise direction forming an angle therebetween, such that the second lumen is laterally offset by a distanc...