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Silicon nitride ceramic artificial hip joint

A technology of silicon nitride ceramics and hip joints, which is applied in the direction of hip joints, joint implants, joint implants, etc., to achieve the effects of good bone growth and bone ingrowth, excellent friction performance, and good visualization

Pending Publication Date: 2019-03-15
苏州玄陶商务咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a silicon nitride ceramic artificial hip joint, which can improve the wear and stress shielding problems of the artificial hip joint, enhance the biological fixation of the artificial hip joint, and prevent the dislocation of the artificial hip joint

Method used

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  • Silicon nitride ceramic artificial hip joint
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Embodiment Construction

[0021] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0022] The acetabular cup, acetabular lining, artificial femoral ball head and femoral stem provided by this application belong to the field of biomedical technology, and many anatomical terms are used in the structure description or effect description, and these anatomical terms are only used to clearly explain The description of structural features does not limit the present application.

[0023] Specifically, the basic anatomical posture is: the body is upright, the eyes are looking straight ahead, the feet are close together, and the toes are facing forward; the upper limbs are hanging on both sides of the torso, and the palms are facing forward (thumbs are on the outside); explain based on the basic anatomical posture The direction of e...

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Abstract

The invention discloses a silicon nitride ceramic artificial hip joint, which consists of an acetabular cup, an acetabular lining, an artificial femoral head and a femoral stem, and relates to the technical field of artificial joints. The acetabular cup, the acetabular lining, the artificial femoral head and the femoral stem are all made of silicon nitride ceramic materials, so that the acetabularcup, the acetabular lining, the artificial femoral head and the femoral stem not only possess various excellent performances of bioceramic implant but also have the advantages of high hardness, highbending strength, high fatigue strength and high fracture toughness, excellent friction performance, good bone length and bone growth capability, good anti-infection capability and good developability, and can improve the abrasion and stress shielding problems of the artificial hip joint. Wherein the outer peripheral surface of the acetabular cup and the surface of the femoral stem part are provided with porous rough structures, and biological fixation of the artificial hip joint can be enhanced by arranging the porous rough structures; an extension part is formed at the bottom edge of the acetabular lining, and the dislocation of the artificial hip joint can be prevented by arranging the extension part.

Description

technical field [0001] The invention relates to the technical field of artificial joints, in particular to a silicon nitride ceramic artificial hip joint. Background technique [0002] The hip joint is an important weight-bearing joint in the human body, and it is also the joint with the largest range of motion among the weight-bearing joints. It can not only stretch (sit down and stand up), adduction and abduction (thighs approach and move away from the midline of the body), but also internal and external rotation (knee joints rotate inward and outward). In people's daily life, the hip joint plays an important role. Whether it is walking, standing, sitting, lying or resting, the participation of the hip joint is inseparable at all times. [0003] However, diseases such as osteoarthritis, aseptic necrosis of the femoral head, traumatic arthritis, and congenital acetabular dysplasia can cause hip joint pain and loss of function, which seriously affects the lives of patients....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/32A61F2/34A61F2/36
CPCA61F2/30771A61F2/32A61F2/34A61F2/3609A61F2002/30329A61F2002/30649A61F2002/30784A61F2002/3216A61F2002/3233A61F2002/365A61F2002/3652A61F2310/00317
Inventor 丁华丹
Owner 苏州玄陶商务咨询有限公司
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