Preparation of titanium net skull restoration

Abstract

The invention relates to a preparation method for the titanium mesh cranial prosthesis, which is characterized in that: the scanning picture of the CT thin layer is introduced into the two-dimensional coordinate region; a halfway line, a baseline, a line of reference and a plurality of construction lines of the brain are drew up; the reference sites of the cranium demanding to be repaired are determined in the intersection of each construction line and the fine cranium in the symmetrical region of the defect region; and the corresponding prosthesis element points are generated in the defect region of the cranium; the layer of the scanning picture corresponding with the element point, the number of the construction line and the vertical distance between the element point and the baseline are taken into recording; each sheet of the CT films of different layers is introduced into the coordinate region, so as to carry out the operation and form the data of all element points of cranial morphology in the defect region; and the titanium mesh is pressed with non-die multi-point former according with the data of the element points, so as to obtain the titanium mesh cranial prosthesis. The titanium mesh cranial prosthesis has the advantages that: the preparation of the titanium mesh cranial prosthesis can be finished; however the three-dimensional prototype of the head of the patients need not to be reconstructed; and the position of the element point can be properly selected according to the experience of the operator, so as to enable the shape of the repaired cranium to more accord with the cosmetic requirements.

Description

technical field [0001] The invention relates to a preparation method of a titanium mesh skull prosthesis, which belongs to the fields of neurosurgery, plastic surgery, and plastic surgery medicine. Background technique [0002] Titanium alloy mesh plate has high strength, non-toxicity, good biocompatibility with human body, and is widely used in skull repair. How to better prepare titanium mesh cranial prosthetics is currently being discussed. Chinese patent 200410074339.3 introduces a method of making a titanium alloy skull prosthesis. The method is based on patient CT image design and assembly of the prosthesis. After the computer with general image processing software and reverse design software stores the data of the tomographic image, Reconstruct the 3D prototype of the patient's head, design the restoration of the defect according to the 3D prototype, and then use the rapid prototyping system to make the restoration model, and press the titanium mesh plate according t...

AI Technical Summary

Problems solved by technology

All of the above methods need to reconstruct the 3D prototype of the patient’s head, and design the restoration of the defect based on the 3D prototype. The operation steps are more complicated, and the requirements for the software are also higher.

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