阅读说明：本技术 韧带重建固定装置及其使用方法 (Ligament reconstruction fixation device and method of use ) 是由 董文兴 于 2019-10-28 设计创作，主要内容包括：一种韧带重建固定装置及其使用方法,涉及医疗器械技术领域；该韧带重建固定装置包括韧带固定结构和韧带；所述韧带固定结构与所述韧带的一端连接；沿垂直于所述韧带的延伸方向,所述韧带固定结构的最大尺寸大于所述韧带的尺寸。该使用方法包括以下步骤：在股骨和胫骨的预设位置打通一条骨隧道；将韧带重建固定装置的韧带,从股骨皮质外侧向胫骨侧拉入骨隧道,直至韧带固定结构与骨隧道的股骨外侧段配合；牵拉韧带的胫骨侧一端至一定张力后,将韧带的胫骨端固定在胫骨上。本发明提供的韧带重建固定装置及其使用方法,以在一定程度上解决现有技术中存在的“雨刷效应”和“蹦极效应”,以在一定程度上提高韧带重建的稳定性能。(A ligament reconstruction fixing device and a using method thereof relate to the technical field of medical instruments; the ligament reconstruction fixing device comprises a ligament fixing structure and a ligament; the ligament fixing structure is connected with one end of the ligament; the largest dimension of the ligament fixation structure is larger than the dimension of the ligament in a direction perpendicular to the extension of the ligament. The using method comprises the following steps: opening a bone tunnel at the preset positions of the femur and the tibia; pulling the ligament of the ligament reconstruction fixing device into the bone tunnel from the outer side of the femoral cortex to the side of the tibia until the ligament fixing structure is matched with the outer femoral section of the bone tunnel; after one end of the tibia side of the ligament is pulled to a certain tension, the tibia end of the ligament is fixed on the tibia. The ligament reconstruction fixing device and the use method thereof provided by the invention solve the 'wiper effect' and 'bungee effect' existing in the prior art to a certain extent so as to improve the stability of ligament reconstruction to a certain extent.)

1. A ligament reconstruction fixation device comprising a ligament fixation structure and a ligament;

the ligament fixing structure is connected with one end of the ligament;

the largest dimension of the ligament fixation structure is larger than the dimension of the ligament in a direction perpendicular to the extension of the ligament.

2. The ligament reconstruction fixation device of claim 1, wherein the ligament fixation structure has a plurality of pores, and the pores are filled with hydroxyapatite or β -tricalcium phosphate.

3. The ligament reconstruction fixation device of claim 2, wherein the ligament fixation structure is a ligament knot and has flexibility;

the ligament knot is fixedly connected with the ligament.

4. The ligament reconstruction fixation device of claim 3, wherein the ligament knot is made of polyester, polyethylene, dacron, polytetrafluoroethylene polylactic acid, or carbon fiber;

the ligament knot is made of the same material as the ligament.

5. The ligament reconstruction fixation device of claim 2, wherein the ligament fixation structure includes a ligament fixation element and a ligament attachment element;

the ligament fastening piece is provided with a plurality of pores;

the ligament fixing piece is connected with the ligament through the ligament connecting piece.

6. The ligament reconstruction fixation device of claim 5, wherein the ligament attachment element is hingedly connected to the ligament fixation element.

7. The ligament reconstruction fixation device of claim 6, wherein the ligament fastener includes a fastener body portion and a fastener projection fixedly connected to a proximal end of the fastener body portion;

the fastener body portion and the fastener projection are disposed along an axial direction of the ligament fastener;

the fixing piece bulge is provided with a fixing piece through hole along the radial direction of the ligament fixing piece, and the ligament connecting piece penetrates through the fixing piece through hole;

the ligament connecting piece is in a closed ring shape.

8. Ligament reconstruction fixation device according to claim 3 or 5, wherein the ligament knot or the ligament fixation element is ball-shaped, ball-like, cone-shaped or button-shaped;

the ligament is made of polyester, polyethylene, terylene, polytetrafluoroethylene polylactic acid or carbon fiber.

9. Use of a ligament reconstruction fixation device according to any one of claims 1 to 8, characterized in that it comprises the following steps:

opening a bone tunnel at the preset positions of the femur and the tibia; the diameter of the bone tunnel on the outer side of the femur and the diameter of the bone tunnel on the outer side of the tibia are both larger than the diameter of the middle part of the bone tunnel;

the ligament of the ligament reconstruction fixing device is pulled into the bone tunnel from the outer side of the femoral cortex to the tibia side until the ligament fixing structure is matched with the outer femoral section of the bone tunnel, so that the biological fixation of the femoral end of the ligament is realized;

after one end of the tibia side of the ligament is pulled to a certain tension, the tibia end of the ligament is fixed on the tibia.

10. The use of claim 9, wherein the tibial end of the ligament is secured by a ligament fixation structure, an interface screw, a suture bridge, or a staple;

the bone tunnel is a stepped bone tunnel or a tapered bone tunnel.