Titanium alloy skull repair prosthesis preparation method based on metal powder laser sintering 3D molding technology

Abstract

The invention discloses a titanium alloy skull repair prosthesis preparation method based on a metal powder laser sintering 3D molding technology. The titanium alloy skull repair prosthesis preparation method is characterized by comprising the following steps of: scanning a skull repair patient by a radiological technology, and reconstructing a model for a skull missing part by a reverse technology; performing 3D modeling for the skull missing part; pre-processing the skull repair prosthesis model; introducing the processed skull repair prosthesis model into a 3D molding device, scanning layers by layers until molding is completed; taking the completely processed skull repair prosthesis down from a processing platform together with a support by wire-electrode cutting; cutting the support down from the prosthesis by wire-electrode cutting, polishing the convex surface and edge of the prosthesis by a sand-blasting machine, and finally manually polishing until the surface of the prosthesis reaches technical requirements. The titanium alloy skull repair prosthesis preparation method adopts the bottom up type additive processing method, can achieve the quick molding of the skull repair prosthesis, and is not prone to being limited by shapes and thickness of the skull repair prostheses.

Description

technical field [0001] The invention relates to a preparation method of a skull repair prosthesis, in particular to a preparation method of a titanium alloy skull repair prosthesis based on metal powder laser sintering 3D forming technology. Background technique [0002] At present, patients with cranial bone repair are divided into two types: congenital and acquired. Congenital patients are born with abnormal skull growth, which leads to severe deformity of the skull later, and surgery must be performed to guide the normal growth of the skull. Acquired skull repair patients refer to acquired skull defects, which account for a large proportion, and the number is increasing year by year. As we all know, wars, car accidents, heavy blows, etc. will cause skull loss; on the other hand, the incidence of brain tumors is also on the rise, and brain surgery is accompanied by skull repair. Therefore, in terms of the application of the research results, there are huge potential user...

AI Technical Summary

Problems solved by technology

The present invention mainly utilizes 3D molding technology to realize rapid prototyping of heterosexual skull repair prosthesis, thereby overcoming the defects of difficult processing of thin-walled prosthesis in previous processing methods, saving materials and improving the surface accuracy of the prosthesis

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