An adjustable collar plate for securing soft tissue or ligament grafts

Abstract

The invention discloses an adjustable lantern ring steel plate for fixing soft tissue or a ligament graft. By means of the lantern ring steel plate, the soft tissue or the ligament graft can be easily and quickly suspended and fixed in a bone tunnel. The lantern ring steel plate comprises a lantern ring, a steel plate body and a traction line. The lantern ring comprises a middle part, namely a suspension bridge, and suture parts at the two ends. According to the lantern ring steel plate, threading holes are symmetrically formed, and one suture penetrates through one hole, so that the sutures penetrate through the threading holes to form a continuous annular lantern ring structure; the whole suspension bridge structure is formed on the surface where the continuous annular lantern ring structure makes contact with the soft tissue or the ligament graft, so that the lantern ring steel plate has interlocking adjustment conditions, the length of the lantern ring can be adjusted according to the length of the bone tunnel, operation is more convenient, the graft is uniform in stress and not likely to move, the friction sawing effect between the sutures is reduced in the traction process, and operations of medical staff are more convenient.

Description

Technical field [0001] The patent of the present invention relates to a soft tissue or ligament graft fixation device, which can suspend and fix the soft tissue or ligament graft in the bone canal easily and quickly. Background technique [0002] The treatment of anterior cruciate ligament (ACL) injuries has been a hot topic in sports medicine research at home and abroad in recent years. With the development and maturity of arthroscopic technology, the application of arthroscopic technology to reconstruct the cruciate ligament has made great progress. The graft materials can be selected from bone-patellar tendon-bone, hamstring tendon, allogeneic tendon and artificial ligament. More and more patients choose artificial ligaments for ACL reconstruction due to the advantages of simple operation and no damage to autologous tissue. [0003] The fixation methods of ligament and femoral end in reconstructive surgery often adopt interface extrusion screw (Intrafix), cross pin fixat...

AI Technical Summary

Problems solved by technology

[0005] Although the effect of the button plate surgery is better, there are still the following defects: First, the coil size of the button plate is fixed, and the length of the bone canal needs to be calculated to select the coil model during the operation. There is a partial telescopic distance between them, and the continuous stretching after implantation in the body will increase the distance deviation, which will affect the force on the steel plate, cause the potential danger of ligament displacement, and affect the stability of ligament fixation; second, multiple sutures pass through the same suture. There will be sutures-the friction between the sutures will cause the pulling to be blocked and affect the service life of the coil; third, the fixed position of the coil on the steel plate is asymmetrical, causing the ligament to be pulled out of the bone canal or implanted Uneven stress during use in the body, prone to ligament displacement

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