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Glenoid fossa prosthesis and joint prosthesis with glenoid fossa prosthesis

A joint fossa and prosthesis technology, which is applied in the direction of prosthesis, hip joints, joint implants, etc., can solve the problems of fast wear of joint materials, failure of artificial joints, and lack of effective lubrication of artificial joints, so as to reduce the fixation effect, The effect of ensuring the service life and reducing the wear rate

Pending Publication Date: 2019-04-05
BEIJING AKEC MEDICAL
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Problems solved by technology

[0003] The purpose of the present invention is to provide a glenoid prosthesis and a joint prosthesis with it to solve the problem in the prior art that the friction surface of the artificial joint lacks effective lubrication, which leads to the fast wear of the joint material and the early failure of the artificial joint

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  • Glenoid fossa prosthesis and joint prosthesis with glenoid fossa prosthesis
  • Glenoid fossa prosthesis and joint prosthesis with glenoid fossa prosthesis
  • Glenoid fossa prosthesis and joint prosthesis with glenoid fossa prosthesis

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] The glenoid prosthesis of the present application can be applied in joints with relative rotation and sliding, such as shoulder joints and hip joints. The glenoid prosthesis in this embodiment is an acetabular prosthesis, and can be set in the hip bone to replace the patient's native acetabulum. Specifically, such as figure 1 As shown, the glenoid prosthesis of this embodiment includes an outer cup 10 and an inner liner 20, the outer cup 10 is set in the target bone (hip bone), the inner liner 20 is set in the outer cup 10, and the joint ball head can be movably set In liner 20. The outer cup 10 is provided with a first communication channel communicating with the joint capsule, the i...

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Abstract

The invention provides a glenoid fossa prosthesis and a joint prosthesis with the glenoid fossa prosthesis. An outer cup of the glenoid fossa prosthesis is arranged in a target bone; a liner is arranged in the outer cup; an articular head structure can be movably arranged in the liner; a first communicating channel which is communicated with a joint capsule is arranged on the outer cup; a second communicating channel which is communicated with the joint capsule is arranged in the liner; the first communicating channel is communicated with the second communicating channel so as to guide synoviato a contact surface between the liner and the articular head structure. According to the technical scheme of the invention, the problem of earlier failure of the joint prosthesis caused by high abrasion rate of a joint material resulted from a lack of effective lubrication on a friction surface of the joint prosthesis in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of artificial joint implants, in particular to a joint socket prosthesis and a joint prosthesis having the same. Background technique [0002] Total hip replacement has been quite popular in the field of artificial joints, but the vast majority of acetabular lining prostheses in the existing products use ceramics or ultra-high molecular weight polyethylene, not to mention that ceramics are even harder than polyethylene. It is much higher than the hardness of the physiological acetabular cartilage tissue of the human body, which leads to a far difference between the feeling of walking after rehabilitation and the proprioceptive feeling before the operation. Few industry organizations have also tried to use polymer materials (such as polyurethane, polyvinyl alcohol gel, polylactic acid) that have similar hardness and elasticity to the natural physiological cartilage of the human body as joint friction surfaces, although...

Claims

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Application Information

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IPC IPC(8): A61F2/34
CPCA61F2/34A61F2002/30649A61F2002/30673A61F2002/3469A61F2002/305A61F2002/30675A61F2002/30985A61F2002/3401A61F2002/30581A61F2002/30934A61F2002/30383A61F2002/3443
Inventor 张卫平
Owner BEIJING AKEC MEDICAL
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