Posterior cruciate ligament tibia guider

Abstract

The invention provides a posterior cruciate ligament tibia guider, relates to the technical field of medical instruments, and is used for solving the technical problem of poor treatment effect of an existing posterior cruciate ligament reconstruction operation. The posterior cruciate ligament tibia guider comprises a support provided with a guide hole and a swing arm slideway, the guide rod is installed in the guide hole in a sliding mode, and a guide pin sliding way penetrating through the two ends of the guide rod is arranged in the guide rod; the eccentric positioning swing arm is providedwith an adjusting arm and a connecting arm; the adjusting arm is installed in the swing arm sliding way in a sliding mode, the rear end of the connecting arm is connected with the end, away from the guide hole, of the adjusting arm, a tibia hook bent towards the guide rod is arranged at the front end of the connecting arm, and the vertical distance between the tibia hook and the axis of the guiderod is 2-7 mm. The posterior cruciate ligament tibia guider provided by the invention is used for assisting in determining an attachment point of posterior cruciate ligament reconstruction on a tibialplateau.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a posterior cruciate ligament tibial guide used in posterior cruciate ligament repair surgery. Background technique [0002] The knee joint is an important joint responsible for supporting body weight and allowing the lower limbs to perform flexion and extension activities. It includes the femoral condyle at the distal end of the femur, the tibial plateau at the proximal end of the tibia, and the anterior and posterior cruciate ligaments that connect the femoral condyle and the tibial plateau. Among them, the anterior cruciate ligament extends from the rear of the femoral condyle to the front of the intercondylar eminence of the tibial plateau, which is used to limit the forward displacement of the tibia; the posterior cruciate ligament extends from the front of the femoral condyle to the rear of the intercondylar eminence of the tibial plateau , used to limit the pos...

AI Technical Summary

Problems solved by technology

[0004] However, placing the front end of the above-mentioned swing arm at the rear of the tibial plateau at a distance of about 10 mm from the insertion point of the tibia is obtained according to the average value of different human bodies. The attachment point of the posterior cruciate ligament reconstruction determined 10mm from the tibial insertion point behind the tibial plateau is quite different, and the attachment point of the posterior cruciate ligament reconstruction determined thus may not be an ideal attachment point, resulting in poor treatment effect of posterior cruciate ligament reconstruction surgery

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