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Femoral prosthesis

A femoral prosthesis, body technology, applied in joint implants, joint implants, elbow joints, etc., can solve the problems of femoral prosthesis prolapse, affecting human health, revision and other issues

Pending Publication Date: 2022-03-18
BEIJING NATON INST OF MEDICAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the human body moves, after the degree of flexion exceeds a certain angle (for example, at a high degree of flexion), the force between the tibia and femoral prosthesis will tend to make the femoral prosthesis protrude. The femoral prosthesis will have the risk of prolapse, which will lead to serious consequences such as revision and affect human health

Method used

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  • Femoral prosthesis
  • Femoral prosthesis
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Experimental program
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Embodiment Construction

[0039] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0040] A femoral prosthesis 1000 according to an embodiment of the present invention will be described below with reference to the accompanying drawings. like Figure 1 to Figure 4 As shown, the femoral prosthesis 1000 according to the embodiment of the present invention includes a body 100 , a post 300 and a stopper.

[0041] The body 100 has a bone cement tank 200 , the bottom wall of the bone cement tank 200 is an osteotomy surface 400 , and the post 300 is installed on the osteotomy surface 400 . Wherein, the bottom wall of the bone cement tank 200 refers to the wall surface of the bone cement tank 200 opposite to its opening.

[0042] The stopper is provi...

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PUM

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Abstract

The invention discloses a femoral prosthesis which comprises a body, the body is provided with a bone cement groove, and the bottom wall surface of the bone cement groove is an osteotomy surface; the upright post is mounted on the osteotomy surface; the backstop piece is arranged on the rear portion of the osteotomy face, the backstop piece protrudes from the osteotomy face to the front side, and the backstop piece extends in the width direction of the bone cement groove; or the number of the stopping pieces is multiple, and the multiple stopping pieces are arranged in the width direction and / or the length direction of the bone cement groove at intervals. Therefore, the femoral prosthesis has the advantage that the femoral prosthesis is still not prone to deviating from the installation position when the flexion degree of the knee joint is high.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a femoral prosthesis. Background technique [0002] Unicompartmental arthroplasty refers to the replacement of only the inner or outer diseased compartment of the knee joint. It is a special form of knee arthroplasty. Compared with total knee arthroplasty, it has less trauma, faster recovery, and better postoperative joint function. Advantages such as being closer to the physiological state and being easier to revise. [0003] The femoral prosthesis is installed on the femur, and the range of motion of the normal knee joint is usually between 0°-120°, and it can reach 150-155° at high flexion After the unicompartmental knee prosthesis is replaced, the femoral prosthesis simulates the human knee in vivo Movement of the joints. When the human body moves, after the degree of flexion exceeds a certain angle (for example, at a high degree of flexion), the force between t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/3859A61F2/3886
Inventor 宋大勇胡森元徐学方董骧
Owner BEIJING NATON INST OF MEDICAL TECH CO LTD