ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,186, issued on Aug. 19, was assigned to BEIJING LONGFU HOSPITAL (Beijing).
"Ultrasound-induced positioning type puncture assembly and sleeve type small needle knife" was invented by Yuanli Wang (Beijing), Qingpu Wang (Beijing), Yanli Lu (Beijing) and Zhijun Tian (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasound-induced positioning type puncture assembly and a sleeve type small needle knife are provided. The small needle knife includes a cutting assembly and a puncture assembly. The puncture assembly includes a puncture needle core and a puncture sleeve; an annular groove facing an ultrasound equipment probe is formed in an outer ...