Products made from PDLLA are biocompatible, often used as medicine release carriers - encapsulating medicine in polymer matrix to form microspheres or particles; It is approved by FDAas excipients and internal fixation devices for injectable microcapsules, microspheres and implants such as corrosion inhibitors; porous foam scaffolds for tissue engineering cell culture; bone fixation or tissue repair materials for tissue engineering; surgical sutures; implant sheets and clamps; artificial skin, artificial blood vessels; ophthalmic implant materials for retina; Implant sheets and clamps; artificial skin, artificial blood vessels; ophthalmic implant material retina, etc.