US Patent Issued to Wisconsin Alumni Research Foundation on Sept. 23 for "Stretchable encapsulation material with high dynamic water resistivity and tissue-matching elasticity" (Wisconsin Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,104, issued on Sept. 23, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Stretchable encapsulation material with high dynamic water resistivity and tissue-matching elasticity" was invented by Xudong Wang (Middleton, Wis.) and Yan Shao (Madison, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encapsulation for an implantable medical device is provided defined by a blend of high molecular weight polyisobutylene and low molecular weight polyisobutylene solution to provide desirable stretchability and elastic properties without sacrificing water resistance properties of the encapsulation. The encapsulation material is flex...