ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,157, issued on Sept. 29, was assigned to ROOSIN MEDICAL Co. LTD. (Taizhou, China).
"Chest seal" was invented by Shaowei Ruan (Taizhou, China), Dayong Chen (Taizhou, China) and Jiamian Chu (Taizhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A chest seal is provided, including a release layer; an adhesive layer, a center of the adhesive layer being opened with an exhaust through hole; and a backing layer. The adhesive layer is arranged between the release layer and the backing layer; the backing layer includes a lower backing layer and a soft backing layer; the lower backing layer and the soft backing layer are staggered and form an overla...