公开(公告)号：US20250161529A1

公开(公告)日：2025-05-22

申请号：US18843155

申请日：2023-02-27

Applicant: Kagoshima University

Inventor： Takayuki TAKEI ,  Masahiro YOSHIDA ,  Yusuke YAMASHITA

IPC: A61L26/00

Abstract: Provided is a method of preparing a medical hydrogel derived from a chitosan derivative containing aldonic acid bound by dehydration condensation to an amino group of a glucosamine unit of chitosan, the method including placing an aqueous solution containing the chitosan derivative in a mold having a predetermined shape, and then subjecting the aqueous solution to high-pressure steam sterilization, to obtain a sterile medical hydrogel having the predetermined shape. The resulting medical hydrogel can be used as a wound dressing for use in the treatment of wound surfaces of cut wounds, lacerated wounds, contused wounds, burns, bedsores, and the like.