ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,318, issued on Oct. 21, was assigned to PIEDMONT MEDSYSTEMS (ZHUHAI) Co. LTD. (Zhuhai, China).
"Balloon catheter" was invented by Jiahua Xiao (Guangdong, China) and Yue Liu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A balloon catheter includes a catheter and a balloon body sleeved on the catheter. The balloon body includes an inner layer balloon and an outer layer balloon. The inner layer balloon and the outer layer balloon are directly wrapped and fixed on the catheter. The inner layer balloon is inside the outer layer balloon. A medium channel is formed between the inner layer balloon and the outer layer balloon. An outer lay...