US Patent Issued to NATIONAL TAIWAN UNIVERSITY on July 28 for "Annular surgical retractor" (Taiwanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,857, issued on July 28, was assigned to NATIONAL TAIWAN UNIVERSITY (Taipei City, Taiwan).

"Annular surgical retractor" was invented by Cheng-Wei Chen (Taipei City, Taiwan), Shu-Chien Huang (Taipei City, Taiwan) and Wei-Qi Liu (Taipei City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An annular surgical retractor has a base panel, a driving panel, and multiple expanding elements. Each of the expanding elements has a transmission panel and a supporting rod formed on an inner end of the transmission panel and is bent relative to the transmission panel. By driving the driving panel to rotate relative to the base panel, each of the expanding el...