ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,853, issued on Sept. 16, was assigned to SUZHOU HEARTHILL MEDICAL TECHNOLOGY Co. LTD. (Suzhou, China).
"Expandable polymer heart valve" was invented by Wei Sun (Suzhou, China) and Xiaoshen Yan (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided by the present invention is an expandable polymeric heart valve. The expandable polymeric heart valve comprises valve leaflets and a valve frame. The valve frame has a hollow cylindrical structure. The valve further comprises an insert adapted to be embedded in the valve frame along an axial direction. The insert is provided with at least one expansion groove in a circumferential direction...