Method for preparing titanium alloy skull dummy

Abstract

The invention is a manufacturing method for titanium alloy cranial bone dummy, applies to cranial nerves surgery cranial bone renovation field. The invention assembles the dummy based on the CT picture of patient; the character lies in: the computer with universal image processing software and back designing software reconstructs the three-dimension prototype of patient head after dividing the fracture image, designs the dummy of defect part according to the three-dimension prototype, and the designed dummy curved surface is guided into multi-point forming system and quick-prototype system to press titanium network board and produce dummy slice model, finally forms the terminal dummy through comparing and cutting the titanium network board; the invention uses multi-point forming technology to compress the dummy quickly, it can uses the softness character of mouldless multi-point to compress the dummy in order to solves the back springing problem. The cost is low, the speed is high.

Description

technical field [0001] The invention relates to a preparation method of a titanium alloy skull prosthesis, which is mainly used in the fields of cranial bone repair in neurosurgery, medical plastic surgery, cosmetic surgery and the like. Background technique [0002] Skull repair is a common surgical procedure in neurosurgery, medical plastic surgery, etc. The materials used mainly include: silicone rubber, polymethyl methacrylate (PMMA), good skull ratio and titanium alloy mesh. Among them, titanium alloy stencils have been widely used in clinical applications because of their good biocompatibility, non-toxicity and high strength. However, the current preparation process of titanium metal plate is either difficult to shape, or the production cost is high and the cycle is long, which seriously limits its popularization and application. At present, there are mainly the following three preparation processes: [0003] (1) Manual shaping This is a shaping method commonly used ...

AI Technical Summary

Problems solved by technology

However, the production cycle is long and the cost is high (generally 100,000 RMB per case in foreign countries), and after the mold is fixed, it cannot solve the springback problem of the prosthesis after pressing, which will affect the fitting accuracy of the prosthesis

[0009] (3) The casting method solves the problem of the accuracy of the restoration, but the process is complicated and costly, and the titanium alloy will be oxidized during the casting process, and the thickness of the restoration should not be too thin, otherwise it cannot be cast

Images