Rapid design method of personalized bone plate with controllable fitting degree

A technology of fitting degree and design method, which is applied in the direction of outer plate, internal bone synthesis, computer-aided surgery, etc., can solve the problems of inability to guarantee the service life and safety of use, the inability to realize accurate design of bone plate, and the unfavorable fixation of bone plate, etc. problems, to achieve the effect of complex and diverse shapes, flexible design, precise and controllable fit

Inactive Publication Date: 2017-09-12
国家康复辅具研究中心
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Problems solved by technology

At present, there are still many problems in the design of bone plates that play a leading role. For example, when fixing bones with complex shapes that are not connected, it is only very inefficient to design roughly matching bone plates according to the shape of human bones, and i

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  • Rapid design method of personalized bone plate with controllable fitting degree
  • Rapid design method of personalized bone plate with controllable fitting degree
  • Rapid design method of personalized bone plate with controllable fitting degree

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 , 2 As shown, the rapid design method of personalized bone plate with controllable fitting degree disclosed by the present invention comprises the following steps:

[0033] S1: Using medical image data to construct a three-dimensional model of the patient's skeleton;

[0034] Conduct CT or MRI medical scans on the patient's diseased parts, export the obtained bone MRI or CT data of the patient's parts to specific software (such as Mimics software), and extract the patient's parts layer by layer with reference to the patient's case situation and specific needs The outer contour of the bone is then uniformly fitted to generate a three-dimensional model of the patient's bone, which is saved as data in IGS, STL and other formats. Among them, the layer thickness and contour extraction of CT or MRI scans determine the accu...

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Abstract

The invention provides a rapid design method of a personalized bone plate with a controllable fitting degree. The method comprises the steps that firstly, three-dimensional reconstruction is carried out on a bone of a patient, and according to design requirements and needs, a parameter panel which is matched with the three-dimensional model and the area range of the to-be-fixed bone plate on the three-dimensional model is generated; the parameter panel is subjected to skin stretching operation towards the three-dimensional model, and a shaping panel which is attached to the surface appearance of the three-dimensional model is formed, wherein the shaping panel can completely cover the area range of the to-be-fixed bone plate on the three-dimensional model; cutting, thickening and other shaping and adjusting treatment are carried out on the shaping panel, and a bone plate model with a certain thickness and shape is generated. Subsequently, existing machining and manufacturing equipment and technologies, such as a multi-axis numerical control machine tool and the additive manufacturing technology, can be utilized, and the personalized bone plate is prepared. The bone plate prepared according to the design is controllable in fitting degree, good in adaptability and safe to use, and has the advantages of being long in service life and the like.

Description

technical field [0001] The invention relates to a rapid design method of a personalized bone plate with controllable fitting degree, belonging to the technical field of biomedical prosthesis. Background technique [0002] With the occurrence of traffic accidents, natural disasters and the deepening of the aging society, the demand for bone repair and bone replacement is increasing. How to provide safe and reliable bone implants with good mechanical properties has become an urgent clinical problem to be solved. one. Among them, bone plate is the most commonly used bone implant, which plays a pivotal role in actual clinical practice. [0003] At present, most of the traditional bone plates are mass-produced. There are only differences in models and sizes, and most of them are regular in shape. During clinical operations, doctors need to use pliers, wrenches and other related tools to perform temporary shaping according to actual needs. . Because the bone plates are all made...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61B34/10
CPCA61B17/80A61B34/10A61B2017/00526A61B2034/105
Inventor 李剑樊瑜波
Owner 国家康复辅具研究中心
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