Anterior cruciate ligament femur positioner

Abstract

The invention relates to an anterior cruciate ligament femur positioner. The anterior cruciate ligament femur positioner comprises a positioning device and a handle. The positioning device comprises ahead and a positioning rod, and one end part of the positioning rod is connected with the head. Hollow channels are formed in the head and the positioning rod, extend in the axial direction of the longitudinal axis of the positioning device and penetrate through the head and the positioning rod. The top of the head part is an inclined plane, and a pointed cone is arranged on the inclined plane and is used for fixing the anterior cruciate ligament femoral positioner and preventing the anterior cruciate ligament femoral positioner from sliding. The handle comprises a connecting part and a handle body, and the connecting part is fixedly connected to one end of the handle body; a handle hollow pipeline extending in the axial direction of the connecting part is arranged in the connecting part;and the tail end of the positioning rod is detachably connected with the handle hollow pipeline of the connecting part, so that the connection between the positioning device and the handle is realized.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an anterior cruciate ligament femoral positioner. Background technique [0002] The locator in the prior art is stuck on the posterior edge of the lateral wall of the intercondylar fossa of the femur to locate the femoral canal. You can’t move freely after you live. If you want to move, you can’t clamp the locator to the edge of the bone, which loses the original intention of the design, and the protruding device on the head is not conducive to maintaining the position. The knee joint needs to move a little during operation. , the position is lost when the knee joint is moved purely by hand. [0003] Clinically, in order to solve the problem of femoral positioning, an anterior cruciate ligament femoral locator was designed. The head of the anterior cruciate ligament femoral locator is stuck on the posterior edge of the lateral wall of the intercondylar fossa of the f...

AI Technical Summary

Problems solved by technology

[0002] The locator in the prior art is stuck on the posterior edge of the lateral wall of the intercondylar fossa of the femur to locate the femoral canal. You can’t move freely after you live. If you want to move, you can’t clamp the locator to the edge of the bone, which loses the original intention of the design, and the protruding device on the head is not conducive to maintaining the position. The knee joint needs to move a little during operation. , the position will be lost when the knee joint is moved purely by hand

[0003] Clinically, in order to solve the problem of femoral positioning, an anterior cruciate ligament femoral locator was designed. The head of the anterior cruciate ligament femoral locator is stuck on the posterior edge of the lateral wall of the intercondylar fossa of the femur and drilled into the Kirschner wire for positioning. The distance between this positioning method and the posterior wall is fixed. At present, it cannot meet the anatomical position of all patients. At present, there are two solutions. One is to directly locate the ideal position under arthroscopy using Kirschner wires, and then drill Bone extraction, which can be achieved by skilled operators, but difficult for beginners

Another method is to use the hollow drill as a guide after placing it in the desired position, but the hollow drill is inconvenient to hold and slips easily

[0004] Because the locator in the prior art cannot move after being stuck, the position of the femoral bone canal is relatively fixed, and it is closer to the posterior wall. It varies from person to person, the position is not fixed, and it is far from the back wall. It is difficult to locate the ideal position using the previous locator. Therefore, many people give up using the locator and drill directly under direct vision, which adds more time to the operation. difficulty

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