ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,159, issued on Feb. 3, was assigned to ZHUHAI DAHENGQIN TECHNOLOGY DEVELOPMENT Co. LTD. (Guandong, China).
"Cryoablation catheter" was invented by Yue Liu (Guangdong, China) and Jiahua Xiao (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cryoablation catheter, comprising a balloon and a delivery catheter passing through the balloon. The delivery catheter is provided with a fluid inflow cavity and a fluid outflow cavity therein. The fluid inflow cavity extends into the balloon, and a side wall of the fluid inflow cavity is provided with a spray head that injects a liquid into the balloon. The spray head has a number of spray holes c...