Hydrogel membrane for adhesion prevention

Abstract

This application is a continuation of U.S. patent Ser. No. 16/359,102, filed Mar. 20, 2019, which is a continuation of U.S. patent application Ser. No. 15/597,541, filed May 17, 2017, which issued on Apr. 30, 2019 as U.S. Pat. No. 10,272,184, which is a continuation of U.S. patent application Ser.