An artificial temporomandibular joint replacement prosthesis

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...

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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

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