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Bionic hip joint prosthesis with reserved femoral neck

A hip joint prosthesis and femoral neck technology, applied in the field of hip joint prosthesis, can solve the problems of splitting, femoral fracture, affecting the stability and effectiveness of surface hip joint surgery, and reduce stress concentration, reduce Possibilities, effects of superior long-term fixed effects

Pending Publication Date: 2022-07-05
PEOPLES HOSPITAL PEKING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during superficial hip surgery, after the pressure nail is inserted into the femoral neck, a new fulcrum close to or coincident with the physiological fulcrum of the human body’s own hip joint cannot be established. fracture or split of the femur, which affects the postoperative stability and effectiveness of superficial hip surgery

Method used

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  • Bionic hip joint prosthesis with reserved femoral neck
  • Bionic hip joint prosthesis with reserved femoral neck
  • Bionic hip joint prosthesis with reserved femoral neck

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Embodiment Construction

[0034] In the description of this application, it should be noted that the terms "deviate from", "close to", etc. are based on the relative relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The process or module must have a specific orientation, state and operation, so it should not be construed as a limitation of the present invention.

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] refer to figure 1 , the present application provides a bionic femoral neck-preserving hip joint prosthesis, including an acetabular cup 15, an inner liner 14 and a ball head 1 arranged in sequence from the outside to the inside, and the ball centers of the three are arranged to coincide; The end surface of the cup 15 is provided with a plurality of anti-rotation grooves 17 spaced around the ...

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PUM

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Abstract

The invention relates to a hip joint prosthesis, in particular to a bionic hip joint prosthesis capable of retaining a femoral neck, which is characterized by comprising a ball head and a pressure nail, a tension nail is further fixed on one side, provided with the pressure nail, of the ball head, and the tension nail penetrates through the pressure nail and is crossed with the pressure nail; in this way, bionic pressure and tension bone trabecula are achieved, the bone substance at the proximal end of the femur is reserved to the maximum extent, and the postoperative anti-rotation stability is improved through the bionic structural design; in addition, more bone mass loss, stress shielding possibly occurring in a long term, osteoporosis, prosthesis sinking or human body bone fracture around the prosthesis and the like after traditional prosthesis replacement are effectively prevented.

Description

technical field [0001] The present application relates to a hip joint prosthesis, in particular to a bionic femoral neck preserving hip joint prosthesis. Background technique [0002] In recent years, with the popularization of hip replacement technology and the improvement of the stem-shaped design of biological femoral prostheses, the clinical application of hip prostheses of various structures is increasing day by day. [0003] For young patients with end-stage hip disease, total hip arthroplasty is still the only effective treatment method at present; total hip arthroplasty requires a large amount of osteotomy, and later revision surgery will be limited due to insufficient bone mass remaining in the patient. Difficult to operate; the design of the total hip prosthesis will destroy the normal biomechanical structure of the proximal femur, and the fixation can only be achieved by the friction between the femoral stem and the medullary cavity. Complications such as prosthe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/36A61F2/30
CPCA61F2/3609A61F2/30749A61F2002/3611
Inventor 张殿英刘华丰王艳华丁镇涛张立佳郁凯张晓萌张一翀王昆博史春宝解风宝
Owner PEOPLES HOSPITAL PEKING UNIV
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