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Temporomandibular joint fovea prosthesis

A technology of temporomandibular joint and joint concavity, which is applied in the field of medical implants to achieve the effect of reducing pain, facilitating postoperative recovery, and simple structure

Inactive Publication Date: 2012-10-10
KANGHUI MEDICAL INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Concave prosthesis made of ultra-high molecular weight polyethylene material

Method used

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  • Temporomandibular joint fovea prosthesis
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  • Temporomandibular joint fovea prosthesis

Examples

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Embodiment Construction

[0017] Refer to the attached Figure 1~3 , a temporomandibular joint concave prosthesis comprises a joint concave prosthesis 1, a joint concave screw 3, a mandibular prosthesis 2, and a mandibular screw 4. The concave prosthesis 1 is made of ultra-high molecular weight polyethylene material. The mandibular prosthesis 2 is made of cobalt-chromium-molybdenum alloy or titanium alloy material, and the surface layer is coated with titanium alloy coating. Both the articular concave screw 3 and the mandibular screw 4 are made of titanium alloy material.

[0018] The concave joint prosthesis 1 is composed of two parts: the joint concave articular surface 1-1 and the joint concave main body 1-2. The joint concave joint surface 1-1 is in the shape of an elliptical spherical hole concave to the joint concave main body, and the joint concave main body 1-2 is Irregularly shaped cylinder, the joint concave main body 1-2 is hollow, so that the joint concave prosthesis 1 can be set on the b...

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Abstract

The invention relates to a medical implantation material and especially relates to a temporomandibular joint fovea prosthesis. The temporomandibular joint fovea prosthesis is especially suitable for various diseases, such as serious bony ankylosis, joint retrogression, rheumatic arthritis, joint coloboma caused by tumor and traumatism, failure of replacing operation for local joint prosthesis and failure of joint reconstruction of autologous tissues. The temporomandibular joint fovea prosthesis comprises a joint fovea prosthesis, a joint fovea bolt, a mandible prosthesis and a mandible bolt, wherein the joint fovea prosthesis is composed of two parts: a joint surface of joint fovea and a joint fovea main body; the joint surface of joint fovea has a shape of an oval hole sunken toward the joint fovea main body; the joint fovea main body is hollow; the joint fovea prosthesis is fixed on a bone through the joint fovea bolt mounted in a joint fovea bolt hole; the mandible prosthesis is composed of two parts: a hemispheroid and a mandible main body; the hemispheroid is connected with the upper part of the mandible main body; the hemispheroid is in contact with the joint surface of joint fovea of the joint fovea prosthesis; the mandible prosthesis is placed on the bone; and the mandible prosthesis is fixed on the bone through the mandible bolt mounted in a mandible bolt hole.

Description

technical field [0001] The present invention relates to a medical implant, in particular to a temporomandibular joint concave prosthesis. Especially for severe osteoarthritis, joint degeneration, rheumatoid arthritis; joint defects caused by tumors and trauma; partial joint prosthesis replacement failure; autologous tissue joint reconstruction failure; other such as joint dysplasia, Various diseases such as joint insufficiency. Background technique [0002] The temporomandibular joint is the only active pair of left and right bilateral joints in the maxillofacial region. It participates in speech, chewing, and swallowing in our daily life. Its movements include rotation, sliding, and left-right linkage. The anatomy and movement of the temporomandibular joint is one of the most complex joints in the human body. Under normal circumstances, it is a joint with a very high frequency of movement. This makes its loss will be very large. Due to temporomandibular joint stiffness ...

Claims

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Application Information

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IPC IPC(8): A61F2/30A61F2/46
CPCA61F2/3099A61F2002/30001
Inventor 杨利波山卫东王志敏王彤余强蒋庆幸丁伟王爱平蒋凯彭豪鲍益富孙协
Owner KANGHUI MEDICAL INNOVATION
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