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A Design Method of Personalized Condylar Prosthesis

A design method and prosthesis technology, applied in computing, instruments, electrical digital data processing, etc., to achieve the effect of shortening operation time, reducing complications, reducing bone resorption and bone atrophy

Active Publication Date: 2021-07-23
XIAN MEDICAL UNIV
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for designing a personalized condylar prosthesis, which solves the problem that the condylar prosthesis in the prior art needs to grind away a large amount of bone tissue to adapt to the shape of the prosthesis

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  • A Design Method of Personalized Condylar Prosthesis
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  • A Design Method of Personalized Condylar Prosthesis

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] A kind of design method of individualized condyle prosthesis of the present invention, specifically implement according to the following steps:

[0029] Step 1. Use CBCT to capture the medical image data of the patient's maxillofacial region; import the data into the medical image processing software Mimics in DICOM format to generate a full-skull 3D virtual model; separate the mandible model from the full-skull model and output it in STL format document.

[0030] Step 2, import the STL file of the mandible model into Geomagic software, simulate the operation process to perform osteotomy of the lesion area, and then trim it to obtain the STL model of the mandible a (such as figure 2 shown); the STL model of the mandible a was reversely reconstructed, then the forward design was carried out, and then the image was finely adjusted, and...

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Abstract

The invention discloses a design method of a personalized condylar prosthesis, which is specifically implemented according to the following steps: Step 1, using CBCT to shoot the medical image data of the patient's maxillofacial region; importing the data into the medical image processing software Mimics in DICOM format to generate Whole head 3D virtual model; separate the mandible model from the whole head model, and output it as an STL format file; Step 2, import the STL file of the mandible model into Geomagic software, simulate the operation process to perform osteotomy of the lesion area, and then perform Trimming to obtain the STL model of mandible a; Reverse reconstruction of the STL model of mandible a, then forward design, fine adjustment of the image, and precise surface fitting using the principle of quadrilateral distribution to obtain the condyle prosthesis The STL model, that is, the desired personalized condylar prosthesis. The invention solves the problem that the condyle prosthesis in the prior art needs to grind away a large amount of bone tissue to adapt to the shape of the prosthesis.

Description

technical field [0001] The invention belongs to the technical field of artificial joint design and preparation methods, and in particular relates to a design method of a personalized condyle prosthesis. Background technique [0002] The temporomandibular joint (TMJ) is one of the most complex joints in the human body. It has left and right linkage joints with rotational and sliding movements, and is involved in chewing, speech, swallowing and facial expressions. Ankylosis, trauma, tumors and other diseases often lead to morphological defects and loss of function of the temporomandibular joint, which seriously affect the quality of life of patients. How to reconstruct the ideal functional shape, restore a stable occlusal relationship and the height of the ramus of the mandible, etc. Problems that must be faced and resolved when repairing defects. Autologous bone grafting can only achieve functional approximation, but cannot achieve anatomical reconstruction and is prone to d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00A61F2/30
CPCA61F2/30
Inventor 郭芳刘昌奎朱勇黄硕
Owner XIAN MEDICAL UNIV
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