Method for preparing biodegradable polymer materials, biodegradable polymer materials and product for fixing bone

Abstract

Disclosed are a method for preparing biodegradable polymer materials, biodegradable polymer materials, and a product for fixing bone. The method includes a complex preparing step of preparing polylactide stereoisomeric complex by using a polymer having weight-average molecular weight more than 100,000 g/mol; a molding step of compression-molding the complex; a cooling step of cooling the compression-molded complex; and an extruding step of solid state extruding the cooled complex. Biodegradable polymer materials prepared by the method may be applied to a product for fixing bone or spine requiring high strength. Biodegradable polymer materials may have no corrosion in the body, may require no additional operation for removal after healing bones and tissues, and may prevent stress shielding.

Dependencies are inferred from the claim text.