Method for preparing bone repair implant on basis of selective laser melting technology

Abstract

The invention provides a method for preparing a bone repair implant on the basis of the selective laser melting technology. The method includes the steps that original data is scanned on the basis of standard medical images of bones of a patient, and a digital three-dimensional model of a primary skeleton of the patient is extracted through image segmentation, editing and three-dimensional computation; according to individual conditions of the patient, osteotomy is directly conducted on the digital three-dimensional model of the primary skeleton to obtain a three-dimensional model of the bone repair implant; a porous structure capable of preventing stress shielding is designed in the three-dimensional model of the bone repair implant; an embedded structure capable of enhancing fixed connection with the primary skeleton is designed on the surface of the three-dimensional model of the bone repair implant; on the basis of the modified and designed three-dimensional model of the bone repair implant, the model is imported into quick forming auxiliary software for processing such as placement positioning, support adding, parameter setting and slicing and layering, a multi-layer slicing two-dimensional data model of the bone repair implant is obtained, metal 3D printing is conducted through the selective laser melting technology, and the bone repair implant is obtained.

Description

technical field [0001] The invention relates to a method for repairing bone damage, in particular to a method for preparing bone repair implants based on laser selective melting technology. Background technique [0002] In the repair of bone defects, the traditional method generally adopts autologous bone grafting or artificial reconstruction. Although the former has small rejection and quick recovery, the collection of raw materials is complicated and the amount of bone is not much, which causes secondary trauma and increases the pain of treatment for patients; while the latter mostly fills in Artificial materials are transplanted after genetic technology, adding growth factors and other technologies, but the matching, fusion and manufacturability are not ideal, and often cause lesions after implantation, causing patients to undergo secondary treatment. Contents of the invention [0003] In view of this, it is necessary to address the problems existing in the prior art an...

AI Technical Summary

Problems solved by technology

[0002] In the repair of bone defects, the traditional method generally adopts autologous bone grafting or artificial reconstruction. Although the former has small rejection and quick recovery, the collection of raw materials is complicated and the amount of bone is not much, which causes secondary trauma and increases the pain of treatment for patients; while the latter mostly fills in Artificial materials are transplanted after genetic technology, adding growth factors and other technologies, but the matching, fusion and manufacturability are not ideal, and lesions often occur after implantation, causing patients to undergo secondary treatment

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