CHITOSAN PATCH SCAFFOLD RELEASING GROWTH FACTORS AND ITS FABRICATING METHOD FOR REPAIRING CHRONIC TYMPANIC MEMBRANE PERFORATIONS

摘要

PURPOSE: A chitosan patch scaffold releasing growth factors, and a producing method thereof are provided to treat the chronic tympanic membrane perforation. CONSTITUTION: A producing method of a chitosan patch scaffold releasing growth factors comprises the following steps: producing a solution by controlling the concentration of chitosan and glycerol; adding the growth factors into the solution; adjusting the amount of the solution to form a patch shape; and drying the solution to obtain the patch scaffold. The concentration of the chitosan is 2-5%, and the concentration of the glycerol is 1-5%. The growth factors are selected from an epidermal growth factor, a fiber blast growth factor, insulin-like growth factor binding protein, or their combination. [Reference numerals] (AA) Treating process of chronic generation of eardrum holes EGF eluting chitosan patch VS a control group