knee replacement prosthesis

A knee joint replacement and prosthesis technology, applied in the field of medical devices, can solve problems such as prosthesis failure and increase tibial pad wear, and achieve the effects of reducing the probability of falling, reducing wear, and reducing the probability of prosthesis failure.

Active Publication Date: 2022-04-01
BEIJING LIDAKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure that the femoral condyle moves more smoothly and stably, the mating surface of the femoral condyle and the tibial pad is usually a curved surface. When the femoral condyle moves relative to the tibial pad, the curved surface will cause the tibial pad to move slightly and increase the impact on the tibial pad. wear caused by the tibial pad, and further prosthetic failure when the tibial pad has a greater range of motion within the tibial tray

Method used

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Embodiment Construction

[0036] The following is attached Figure 1-5 The application is described in further detail.

[0037] The embodiment of the present application discloses a knee joint replacement prosthesis. refer to figure 1 , the knee joint replacement prosthesis includes a femoral condyle 1 , a tibial tray 2 and a tibial pad 3 between the femoral condyle 1 and the tibial tray 2 . Among them, the femoral condyle 1 is used to be installed on the lower end of the human femur, the tibial support 2 is used to be installed on the upper end of the human tibia, the tibial pad 3 is installed on the tibial support 2, and the side of the tibial support 3 away from the tibial support 2 is an arc The shape is used to cooperate with the femoral condyle 1, and when the human body moves, the lower end of the femoral condyle 1 will rotate on the tibial pad 3.

[0038] refer to figure 2 and image 3 , the tibial pad 3 can be made of ultra-high molecular weight polyethylene or highly cross-linked ultra-...

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Abstract

The present application relates to a knee joint replacement prosthesis, which relates to the field of medical devices, including the femoral condyle, the tibial tray and the tibial pad between the femoral condyle and the tibial tray, the section of the tibial pad is semicircular, and the tibial pad includes The engaging portion matched with the tibial tray and the abutting portion fixedly connected to one end of the engaging portion, the tibial tray is provided with a placement groove for the engaging portion to be embedded in. This application has the advantage that when the fixed platform prosthesis is used for knee arthroplasty, the optional models of the femoral condyle can be increased, the coverage of the femoral condyle can be improved, and the fixation of the tibial pad is more firm, reducing the microscopic damage caused by the tibial pad. Movement reduces wear on the tibial pad and reduces the probability of prosthetic failure.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a knee joint replacement prosthesis. Background technique [0002] A unicompartmental knee prosthesis is a surgical implant used to replace the knee joint and is used in unicompartmental knee replacement surgery. Compared with total knee replacement surgery, unicompartmental knee replacement surgery can significantly reduce intraoperative bleeding and postoperative recovery time. Because it retains the anterior and posterior cruciate ligaments of the human body, it maintains the normal knee joint Dynamics, so that patients can get a higher level of postoperative knee mobility. [0003] For unicompartmental knee replacement surgery, whether it can be stably and firmly matched in the patient's body while recovering postoperative function, minimize postoperative pain, and increase the index of the prosthesis being forgotten is crucial. important. The existing knee joint p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38
CPCA61F2/3877A61F2/3859A61F2/389A61F2002/30329A61F2002/2892A61F2002/2825
Inventor 张亚鹏马淑芹张天宇
Owner BEIJING LIDAKANG TECH
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