ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,489, issued on April 21, was assigned to University of Pittsburgh-Of the Commonwealth System of Higher Education (Pittsburgh).

"Use of a urinary bladder ECM hydrogel as an esophageal submucosal fluid cushion" was invented by Stephen Francis Badylak (West Lafayette, Ind.), Lindsey Tamiko Saldin (El Segundo, Calif.) and Juan Diego Naranjo Gutierrez (Manizales, Colombia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods are disclosed for dissecting a mucosa and a submucosa from a muscularis propria from a region of the esophagus of a subject. These methods include injecting submucosally into the region of the esophagus of the subject a pharmaceuti...