ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,487, issued on Nov. 11, was assigned to SUZHOU HEARTHILL MEDICAL TECHNOLOGY Co. LTD. (Jiangsu, China).
"Polymeric heart valve and preparation method therefor" was invented by Zhigang Zhang (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided by the present invention are a polymeric heart valve and a preparation method therefor. The polymeric heart valve comprises valve leaflets and a valve frame. The valve frame is a hollow cylindrical structure and comprises a first end and a second end; the first end is provided with a plurality of column peaks arranged at intervals in the circumferential direction, and column valleys are corresp...