Preparation method of hyaluronic acid-polylactic acid modified material

The invention discloses a preparation method of a hyaluronic acid-polylactic acid modified material, wherein the hyaluronic acid-polylactic acid modified material has a structure as shown in the specification, where n is selected from 10 to 5000 and m is selected from 10 to 500. The hyaluronic acid-polylactic acid modified material provided by the invention has good injectability, stability and biocompatibility, can be applied to soft tissue filling and repairing as well as surgery, such as wrinkle removal, rhinoplasty and breast augmentation, and can also be applied to the lubrication of anti-adhesion and orthopedic joints for medical surgery. 本发明公开了种玻尿酸-聚乳酸改性材料的制备方法，其中所述的玻尿酸-聚乳酸改性材料具有如下结构：其中n选自10-5000，m选自10-500。本发明的玻尿酸-聚乳酸改性材料具有良好的可注射性、稳定性和生物相容性，可应用于软组织填充、修复及外科手术，例如可用于除皱纹、隆鼻、隆胸，也可以用于医疗外科手术用的防粘连和骨科关节的润滑。