Method for constructing 3D printed individual orthopeadic implant and enhancing biomechanics of 3D printed individual orthopeadic implant

Abstract

The invention belongs to the technical field of image information processing and discloses a method for constructing a 3D printed individual orthopeadic implant and enhancing the biomechanics of the 3D printed individual orthopeadic implant. The method comprises the following steps: firstly, preprocessing a CT image; secondly, cutting the CT image; thirdly, reconstructing a typical three-dimensional skeleton model, taking the typical model as a template, and performing three-dimensional model repairing and reconstructing treatment on other skeletons based on the template; fourthly, studying askeleton anatomical reduction-oriented digital grid registration algorithm; designing an individual surgical template optimized by a screw-setting scheme; optimizing the geometric pattern matching andmechanical performance of an individual artificial joint prosthesis; printing the three-dimensional model, and performing three-dimensional printing-based orthopeadic implant treatment. The method has important theoretical significance and clinical application value in shortening the orthopeadic preoperative planning cycle, improving the implanting efficiency and mechanical performance of individual implants, reducing surgical time and surgical injury and promoting orthopeadic implant industrial development.

Description

technical field [0001] The invention belongs to the technical field of image information processing, and in particular relates to a 3D printing personalized orthopedic internal plant construction and biomechanical optimization processing method. Background technique [0002] At present, the closest existing technology: Before traditional orthopedic surgery, doctors generally understand the condition through X-ray, CT and other imaging methods, and then plan and simulate the operation on two-dimensional drawings or in the mind. This method is difficult to intuitively understand the injured bone area, it is difficult to perform complex surgical simulation, and it has high requirements on the professional level and imagination of doctors. 3D printed mock-ups provide a more realistic environment than digital models. Doctors can make an accurate diagnosis before the operation, formulate a detailed operation plan, evaluate the possible risks during the operation, and practice on ...

AI Technical Summary

Problems solved by technology

3D printing needs to print 3D model slices layer by layer. Traditional slicing with equal layer thickness will cause a contradiction between model accuracy and printing time: the layer thickness is small, the model accuracy is guaranteed, but the printing time is long; on the contrary, the printing time is shortened, but the Easy to lead to large model step error

[0020] (1) The 3D bone model reconstruction based on CT images still has modeling difficulties and a large amount of interaction

[0021] (2) For the design of personalized orthopedic implants and surgical guides, it is necessary to be proficient in relevant medical and CAD design software, and to have certain surgical experience, which requires high personnel requirements

[0022] (3) The mechanical properties of 3D printed orthopedic implants have low mechanical strength and poor fatigue resistance, making it difficul...

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