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Unicondylar knee joint prosthesis capable of preventing looseness and working method thereof

A knee joint prosthesis, unicondylar technology, applied in the directions of knee joint, elbow joint, joint implant, etc., can solve the problems of instability, shortened prosthesis service life, unfavorable use, etc., so as to improve the service life and prevent false The effect of loose body and simple structure

Active Publication Date: 2021-04-20
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to investigations and studies, prosthesis looseness and instability are one of the main reasons for the failure of artificial knee joints, and the rate of revision due to prosthesis loosening in the later stage is as high as 40%. Unable to know before loosening, resulting in reduced service life of the prosthesis, which is not conducive to use

Method used

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  • Unicondylar knee joint prosthesis capable of preventing looseness and working method thereof
  • Unicondylar knee joint prosthesis capable of preventing looseness and working method thereof
  • Unicondylar knee joint prosthesis capable of preventing looseness and working method thereof

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Example: such as Figure 1~7 As shown, a unicompartmental knee prosthesis that can prevent loosening is provided, including a femoral prosthesis 1 arranged in sequence from top to bottom, a platform pad 2 for rotating and slidingly fitting with the femoral prosthesis, and a platform pad for supporting the platform pad. Platform holder 3, fixed column A4 and fixed column B5 are provided above the femoral prosthesis, and magnetic heads 6 and sensor modules 7 that match are respectively provided inside the femoral prosthesis and the platform pad;

[0023] The lower part of the platform support is inserted into the bone marrow, and the fixing posts A and B on the femoral prosthesis are also inserted into the bone marrow.

[0024] The upper surface of the above-mentioned femoral prosthesis is the second arc-shaped surface 11, the l...

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Abstract

The invention provides a unicondylar knee joint prosthesis capable of preventing looseness. The unicondylar knee joint prosthesis comprises a femoral prosthesis, a platform pad and a platform support which are sequentially arranged from top to bottom, the platform pad is used for being in rotary sliding fit with the femoral prosthesis, the platform support is used for supporting the platform pad, a fixing column A and a fixing column B are arranged above the femoral prosthesis, and a magnetic head and a sensor module which are matched with each other are arranged in the femoral prosthesis and the platform pad respectively. The unicondylar knee joint prosthesis is reasonable in design, simple in structure and convenient to use, loosening of the prosthesis can be known in time, and further treatment is performed in advance to prolong the service life of the prosthesis.

Description

technical field [0001] The invention relates to a unicompartmental knee joint prosthesis capable of preventing loosening and its application method. Background technique [0002] Artificial single knee arthroplasty is a kind of artificial joint replacement surgery, which refers to the removal of the articular surface that cannot be repaired by the human body, and the replacement of damaged joints with artificial joint parts, to correct the line of limbs, eliminate knee joint pain, and maintain joint stability It is a treatment method to restore the function of the knee joint. 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, unicompartmental knee arthroplasty can significantly reduce intraoperative bleeding and postoperative recovery time. Because it retains the anterior and posterior cross ligaments of the human body, it maintains the stabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61F2/46
Inventor 李明林屠星磊
Owner FUZHOU UNIV
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