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An artificial temporomandibular joint replacement prosthesis

A temporomandibular joint and prosthesis technology, applied in the field of artificial temporomandibular joint replacement prosthesis, can solve the problems of inability to match the patient's jaw shape, lateral deviation of the installation position, differences in anatomical structure, etc., so as to avoid nerve damage and the risk of massive bleeding , Improve the use effect and life, increase the effect of accuracy and stability

Active Publication Date: 2017-01-04
BEIJING AKEC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because foreign standard products are designed according to the anatomical structure of Caucasians, which are different from Chinese anatomical structures, they cannot match the shape of the patient's jaw well, and the existing deviation will cause the installation position to deviate outwards, resulting in easy External dislocation, etc.
[0003] In view of the lack of artificial temporomandibular joint prosthesis designed according to the anatomical characteristics of Chinese people in China, it is urgent to invent a standard artificial temporomandibular joint prosthesis with different models to suit the anatomical shape of Chinese people

Method used

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  • An artificial temporomandibular joint replacement prosthesis
  • An artificial temporomandibular joint replacement prosthesis
  • An artificial temporomandibular joint replacement prosthesis

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0019] The invention is mainly used in the total joint replacement treatment of temporomandibular joint ankylosis, late stage condylar osteoarthritis and various advanced cases of condylar degeneration. Preoperative measurements are made based on the patient's panoramic film, head anterior view, or the patient's CT data, so as to select the prosthesis model suitable for the patient's anatomical shape.

[0020] Such as ...

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Abstract

The invention relates to an artificial temporal-mandibular joint replacement prosthesis. The replacement prosthesis comprises a glenoid fossa prosthesis and a mandible ramus prosthesis; the glenoid fossa prosthesis is made of supra polymer polyethylene polymer and comprises a tissue surface in contact with the glenoid fossa and a function surface in contact with the mandible ramus prosthesis, the tissue surface comprises a wing plate which is in contact with the zygomatic arch and is fixed to the zygomatic arch and a protrusion part in contact with the glenoid fossa, and the function surface comprises a sunken part in contact with the mandible ramus prosthesis and stopping plates arranged at the two ends of the sunken part; and the mandible ramus prosthesis comprises a condyloid process head and a mandible ramus fixing handle, the condyloid process head is cylindral and is in contact with the sunken part, the mandible ramus fixing handle is attached to the outer lateral face of the mandible ramus. By means of the artificial temporal-mandibular joint replacement prosthesis, the standard form artificial joint prosthesis is more suitable for the dissection appearance of the Chinese and is better attached to the jaw, complications in and after an operation are effectively reduced, the using effect of the standard form artificial joint prosthesis is improved, and the service life of the standard form artificial joint prosthesis is prolonged.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an artificial temporomandibular joint replacement prosthesis. Background technique [0002] Temporomandibular joint replacement is an effective means of treating advanced osteoarthropathy, joint ankylosis, tumor, idiopathic resorption and other diseases. Among them, the artificial temporomandibular joint prosthesis has the advantages of being stable and non-absorbing, and does not need to open up a second operation area, thereby reducing surgical trauma, and is widely used abroad. However, because foreign standard products are designed according to the anatomical structure of Caucasians, which are different from Chinese anatomical structures, they cannot match the shape of the patient's jaw well, and the existing deviation will cause the installation position to deviate outwards, resulting in easy External dislocation, etc. [0003] In view of the lack of artificial temporoman...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/30
CPCA61F2/3099A61F2002/30001
Inventor 何冬梅杨驰白果张露珠王飞宇
Owner BEIJING AKEC MEDICAL
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