ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,404, issued on Sept. 23, was assigned to XI'AN JIAOTONG UNIVERSITY (Xi'an, China).

"Birfield flexible variable-stiffness continuum robot unit and continuum robot" was invented by Laihao Yang (Shaanxi, China), Yinchong Peng (Shaanxi, China), Yu Sun (Shaanxi, China) and Xuefeng Chen (Shaanxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a birfield flexible variable-stiffness continuum robot unit and a continuum robot. In the birfield flexible variable-stiffness continuum robot unit, main structural units are interconnected to constitute a continuum manipulator; joint connecting structures connect the two adjacent main structural ...