| abstract |
The invention discloses a medical degradable antibacterial composite material and a preparation method and application thereof. The composite material uses a porous magnesium alloy (6) with through holes as a reinforcing body, and the holes (1) of the reinforcing body are filled with degradable materials The polymer materials are polycaprolactone and polylactic acid, and the degradable polymer materials are uniformly dispersed with nano-magnesium oxide powder. The preparation steps of the composite material are as follows: 1) the preparation of the porous magnesium alloy (6) the reinforcement; 2) the nano-magnesium oxide powder, polylactic acid and polycaprolactone are blended and then molded into a polymer sheet (5); 3) the The polymer sheet (5) is placed above the porous magnesium alloy (6) and obtained after extrusion and solidification. The material has good biocompatibility, safe, stable and controllable degradation, good mechanical properties, and has antibacterial functions. It is suitable for small orthopaedic prosthesis products of various shapes, and can be used as a new generation of degradable materials for bone trauma surgery, bone Defect repair surgery, plastic surgery and other medical implant fields. |