Design method of customized condylar prosthesis

A design method and prosthesis technology, applied in the direction of joint implants, joint implants, etc., to achieve the effect of reducing bone resorption and bone atrophy, excellent physical and chemical properties, and reducing complications

Active Publication Date: 2019-09-20
XIAN MEDICAL UNIV
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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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  • Design method of customized condylar prosthesis
  • Design method of customized condylar prosthesis
  • Design method of customized 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 customized condylar prosthesis, which is specifically implemented according to the following steps: step 1. using CBCT to capture medical image data of the patient's maxillofacial region; introducing the data into the medical image processing software Mimics in DICOM format to generate a full skull 3D virtual model; separating a mandibular model from the full skull model and outputing as an STL format file; step 2: introducing the STL file of the mandibular model into the Geomagic software, simulating the surgical process to perform osteotomy in a lesion area, and then perform trimming to obtain a STL model of the mandible a; performing reverse reconstruction of the STL model of mandible a, performing forward design, then finely adjusting the image, and using a quadrilateral point principle to perform precise surface fitting to obtain the STL model of the condylar prosthesis, which is the desired customized condylar prosthesis. The method solves the problem that the condylar prosthesis existing in the prior art needs to remove 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 Applications(China)
IPC IPC(8): A61F2/30
CPCA61F2/30
Inventor 郭芳刘昌奎朱勇黄硕
Owner XIAN MEDICAL UNIV
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