Design method of personalized condylar prosthesis with topological optimized fixing unit and porous condylar head unit, and personalized condylar prosthesis

A fixed unit, topology optimization technology, applied in prosthesis, manufacturing tools, metal processing equipment, etc., can solve the problems of reducing stress shielding, not fully considering biological and biomechanical factors, etc.

Pending Publication Date: 2019-09-17
ZHEJIANG UNIV OF TECH
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Problems solved by technology

In recent years, the design of condyle prosthesis with three-dimensional porous structure has also been proposed. For example, designing the condylar head part into a porous structure can significantly reduce "stress shielding", but these studies have not fully considered biological and biomechanical factors

Method used

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  • Design method of personalized condylar prosthesis with topological optimized fixing unit and porous condylar head unit, and personalized condylar prosthesis
  • Design method of personalized condylar prosthesis with topological optimized fixing unit and porous condylar head unit, and personalized condylar prosthesis
  • Design method of personalized condylar prosthesis with topological optimized fixing unit and porous condylar head unit, and personalized condylar prosthesis

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Embodiment Construction

[0057] The present invention will be further described below in conjunction with the accompanying drawings.

[0058] refer to Figure 1 to Figure 13 , a method for designing a personalized condylar prosthesis with a topology-optimized fixation unit and a porous condylar head unit, comprising the following steps:

[0059] 1.) Condylar prosthesis reconstruction and mandibular biomechanical model construction

[0060] 1.1) Carry out computed tomography scan to the temporomandibular joint patient, obtain its CT data, utilize medical image processing software such as Mimics, carry out medical image processing and model reconstruction, obtain the mandibular three-dimensional surface model (hollow stl format), condyle shape if Basically complete and direct reconstruction, or if one side is healthy, it can be generated by a mirror image, or if it is unhealthy, you can redesign an artificial condyle shape according to the shape of the glenoid fossa, the shape of the mandible, and the ...

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Abstract

The invention relates to a design method of a personalized condylar prosthesis with a topological optimized fixing unit and a porous condylar head unit. The method comprises the following steps: 1) reconstructing a condylar prosthesis and constructing a mandible biomechanical model; 2) performing topological optimization design on a fixing unit based on biomechanics; 3) designing the porous structure of the condylar head; 4) carrying out 3D printing on the personalized condylar prosthesis; and 5) carrying out post-treatment on the printed personalized condylar prosthesis to obtain the personalized condylar prosthesis which is applied to clinic and has the topological optimized fixing unit and the porous condylar head. The invention provides the design method of the personalized condylar prosthesis with the topological optimized fixing unit and the porous condylar head unit, and the personalized condylar prosthesis. The method effectively reduces the average maximum stress of the prosthesis, so that the prosthesis has better stability and is not easy to fall off.

Description

technical field [0001] The invention relates to the technical field of artificial temporomandibular joints, in particular to a method for designing a personalized condyle prosthesis with a topology-optimized fixation unit and a porous condyle head unit and the condyle prosthesis. Background technique [0002] The temporomandibular joint is located at the junction of the mandible and the zygomatic bone, and is an important joint in the human body. Temporomandibular joint disease is a disease with a relatively high incidence rate, but most of them do not require surgery or even treatment, only the joint snapping or slightly limited mouth opening or even no symptoms appear. However, a small number of cases are more serious, and patients will have symptoms of inability to open their mouth and pain, such as temporomandibular joint ankylosis, the condyle has been connected to the glenoid fossa, and the mandible cannot move. This condition requires osteotomy followed by joint reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/30
CPCA61F2/30942A61F2/3099A61F2002/30952A61F2002/30955A61F2002/30985
Inventor 刘云峰王栋才夏疆姜献峰董星涛
Owner ZHEJIANG UNIV OF TECH
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