Knee joint tibial system and knee joint medical device

Abstract

The invention belongs to the technical field of medical instruments, and discloses a knee joint tibial system. The knee joint tibial system is provided with a tibial bone support, wherein the tibial bone support is clamped and fixed with a first tibial bone pad and a second tibial bone pad through a tibial bone support groove. The tibial support structure of the knee joint tibial system is simplein design, and the tibial spacer can be conveniently installed into the tibial support structure, and the operation process is simple. Compared with the products on the market, it is not necessary touse the clipping tool to clip in more forcefully, nor will it cause damage to the tibial structure during the clipping process; the tibial pad can be fixed stably by setting the tibial pad structure,which provides a stable structure surrounded by the tibial pad, so that the tibial pad can be fixed stably, the fretting wear between the tibial pad and the tibial pad can be effectively reduced, andthe phenomenon of osteolysis around the joint system after the operation can be reduced. The tibia bracket of the knee joint tibial system is simple to manufacture and low in cost, can be stably produced, can be processed by forging castings, and can also be directly processed by bars.

Description

technical field [0001] The invention belongs to the technical field of medical appliances, in particular to a knee tibial system and a knee joint medical device. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] With the continuous advancement of science and technology, the field of medical devices has also developed rapidly. At the same time, people have higher requirements for knee implant surgery. In joint replacement surgery, knee replacement is one of the basic replacement surgeries. Knee replacement surgery can effectively solve the patient's knee symptoms, relieve the patient's pain, and restore the patient's knee function to a certain extent. At present, there are mainly two forms of knee replacement surgery: retaining the posterior cruciate ligament and not retaining the posterior cruciate ligament, both of which require the removal of the anterior cruciate ligament. With the trend of joint ...

AI Technical Summary

Problems solved by technology

[0007] (3) In the existing products, the structure connected to the tibia is generally a central column and fan-shaped on both sides. Such a structure requires a large amount of bone removal during surgery, which will have a great impact on the patient.

[0008] (4) The existing tibial support products cannot distribute stress well, resulting in uneven stress distribution at the proximal end of the tibia, which shortens the life of the implant and the period of revision

[0009] (5) The existing tibial pad products cannot be based on clinical needs, and the thickness of the inner and outer sides cannot be freely selected independently, which brings more and worse surgical results to the surgeon.

[0010] (6) In the existing tibial system products, the engagement structure between the tibial pad and the tibial support is easy to loosen, causing wear and tear, leading to early revision and bringing pain to the patient

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