ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,402, issued on May 26, was assigned to TRICOL BIOMEDICAL INC. (Portland, Ore.).
"Chitosan dressing for control of gastrointestinal bleeding" was invented by Cole Gannett (Portland, Ore.), Simon J. Mccarthy (Portland, Ore.) and Ervelyn Winata (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a biocompatible, foldable, thin profile, low mass and high surface area, chitosan dressing, optionally modified with catechol, and suitable for treating bleeding in a physiological environment, e.g. gastrointestinal tract. The characteristics and structures of the chitosan dressing are provided. Methods of making and u...