Ligament bracket, shaping method of ligament bracket, and ligament implanting materials formed from ligament bracket

Abstract

The invention provides a ligament bracket, a shaping method of the ligament bracket, and ligament implanting materials formed from the ligament bracket. The ligament bracket comprises a core part anda sheath part, wherein the core part is a threadlike or bunchy suture formed from biologic degradable high molecular polymers, the sheath part is formed through twirling and twisting biodegradable electrospun nanofiber membranes to closely wrap and be fixed outside the suture, and two ends of the suture extend from two ends of the sheath part to form a first traction line part and a second traction line part. According to the ligament bracket disclosed by the invention, by a twirling and twisting method, the electrospun nanofiber membranes closely wrap the outside of the suture, higher positive pressure is produced between fibers, tangential friction is enlarged, the ligament bracket has higher tensile violence in the axis direction, and besides, not less than two ligament brackets can bedoubled and twisted or knitted to form the ligament implanting materials having better tensile violence. Compared with the prior art, the ligament bracket can provide more effective mechanical supportto maintain stability of joints, and besides, quick scaleable preparation is facilitated.

Description

technical field

[0001] The invention relates to the technical field of manufacturing medical tissue engineering brackets, in particular to a ligament bracket, a forming method thereof and a ligament implant formed therefrom. Background technique

[0002] Ligaments are fibrous dense connective tissues that connect bone tissue, and play an important role in maintaining joint movement stability and normal physiological activities. Sports trauma, accidental injury, etc. often lead to damage or even rupture of the ligament. Due to the poor healing ability of the ligament itself, it is necessary to use graft reconstruction to restore its physiological function clinically. At present, the reconstruction and repair materials after ligament injury or rupture mainly include autografts, allografts and artificial ligaments. Among them, autografts cause damage to autologous tissues, resulting in complications at the donor site, and the source of donors is limited, and it is not clear wh...

Images