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Hip joint prosthesis

A hip joint prosthesis and hip joint technology, applied in the medical and health field, can solve the problem of lack of joint capsules that secrete and store synovial fluid, etc., to achieve increased stability and anti-rotation performance, good biocompatibility, and satisfying mechanical properties Effect

Inactive Publication Date: 2014-03-26
无锡蚂蚁微威科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is known that the artificial joint is a friction pair composed of metal, polymer material or ceramic material instead of the friction pair composed of articular bone (including articular surface and cartilage), and the artificial joint also lacks the secretion and storage of synovial fluid in human joints. Joint capsule

Method used

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  • Hip joint prosthesis

Examples

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Embodiment Construction

[0012] Such as figure 1 As shown: the bionic hip joint includes a hip joint handle 1 and a bionic joint capsule 2; the lower end of the hip joint handle 1 is connected with a titanium alloy ball head 4 through wedge-shaped insertion, and the titanium alloy ball head 4 is connected with a polyethylene socket 3 Matching constitutes a joint friction pair; the bionic joint capsule 2 is a bowl-shaped capsule made of silicone, with a central hole on the top that is set and fixed with the hip joint handle 1, and the periphery of the bowl is glued to the top surface of the polyethylene socket 3. Combined with bonding and fixation, a joint cavity 6 is formed between the bionic joint capsule 2 and the hip joint handle 1, the titanium alloy ball head 4 and the polyethylene socket 3, and synovial fluid is stored in the joint cavity 6; the outer layer of the polyethylene socket 3 It is also matched with a titanium alloy socket 5, the surface of the titanium alloy socket 5 is attached with ...

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Abstract

The invention provides a hip joint prosthesis. The hip joint prosthesis comprises a hip joint handle and a bionic joint capsule. The lower end of the hip joint handle is connected with a ball head, and the ball head and a joint are matched to form a joint friction matched pair; a joint cavity is formed between the ball head and the joint; a metal joint is arranged on the outer layer of the joint in a matched mode, and conical protrusions are attached to the surface of the metal joint; grooves are formed in the hip joint handle. Due to the arrangement of the grooves and the conical protrusions, the mechanical property of the hip joint prosthesis can be well met, the service life of the hip joint prosthesis can be prolonged, the implantation comfort of the hip joint prosthesis can be improved, and the stability and anti-rotation performance of the hip joint prosthesis after the hip joint prosthesis is implanted are improved.

Description

technical field [0001] The invention relates to a hip joint prosthesis, which belongs to the medical and health field. Background technique [0002] In medical clinical treatment of various advanced diseases of the hip joint, such as femoral head necrosis, etc., the method of hip joint replacement surgery is generally used, and artificially manufactured hip joint prosthesis is implanted in the body to fix and support the human hip joint. The anatomical structure, and make it obtain normal mechanical properties to complete certain physiological functions, thereby achieving the purpose of relieving pain and improving function. [0003] It is known that the artificial joint is a friction pair composed of metal, polymer material or ceramic material instead of the friction pair composed of articular bone (including articular surface and cartilage), and the artificial joint also lacks the secretion and storage of synovial fluid in human joints. joint capsule. At the same time, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/32
CPCA61F2/32A61F2002/30001
Inventor 朱索玄
Owner 无锡蚂蚁微威科技有限公司
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