Three-dimensional skull model with temporomandibular joint disc

Abstract

The invention discloses a skull three-dimensional model with temporomandibular joint discs, and relates to the technical field of medical treatment, the skull three-dimensional model comprises a skull component model and a mandibular body model, two groups of guide discs are symmetrically arranged at the bottom of a joint fossa, and screws and first upper rotating shafts are jointly connected between the skull component model and each group of guide discs; when the skull composition model and the mandibular body model are subjected to mouth opening and mouth closing motions, under the action of the bearing, when the mandibular body model rotates anticlockwise around the first connecting rod, the mandibular body model embodies the mouth opening motion; when the mandible body model rotates clockwise around the first connecting rod, the lower jawbone achieves closed movement, and when the lower jawbone model moves forwards and backwards, the joint disc slides along with movement of the condylar process. The two sets of fastening bolts slide forwards in an arc shape along the interior of the guide sliding groove, and the motion trail of the temporomandibular joint can be displayed.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a three-dimensional skull model with a temporomandibular joint disc. Background technique [0002] Temporomandibular joint is also called "temporomandibular joint" or "mandibular joint". It is composed of the mandibular head, the mandibular fossa of the temporal bone and the articular tubercle. It forms a joint joint on the left and right. It is mainly responsible for mouth opening, closing and chewing movements. During the mouth opening and closing activities, the mandibular head rotates along the frontal axis passing through the mandibular head in the mandibular joint cavity , the mandibular body manifested as descending and elevating. When making forward and backward movements, the articular disc together with the mandibular head slides in an arc around the frontal axis located in the joint tubercle in the upper joint cavity. [0003] In the past, the skull model only simul...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a three-dimensional skull model with a temporomandibular joint disc, which solves the problem that students can only understand the temporomandibular joint through text descriptions and pictures when teaching the structure of the temporomandibular joint. Intuitive understanding of the movement process of the temporomandibular joint

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