Making method for fracture model of artificial bone

Abstract

The invention discloses a making method for a fracture model of artificial bone, which comprises the following steps: carrying out continuous spiral CT (computed tomography) scanning on affected bone along the cross section to obtain a multi-layer image, storing according to a Dicom 3.0 standard and making out a three-dimensional reconstruction model of the bone and a fractured section by utilizing Mimics software; fractioning the model to be processed by UG (Unigraphics) software and making an appearance mold of the bone and a mark groove for the position of a fracture line of the archetypalbone by numerically-controlled mill processing; and carrying out three-dimensional printing to obtain a fractured section model, also placing at the position of the mark groove of the corresponding bone appearance mold, jointing an upper mold and a lower mold, filling polymethyl methacrylate, standing at room temperature, solidifying and taking out the fractured section model so as to obtain a specimen of the fracture model of the artificial bone. In this way, the prepared fracture model is made in one step, and the complicated processes of obtaining a bone specimen and afterwards making fracture artificially, the consumption of equipment and the worry of enhancing the cost are omitted. The condition of stress between fractured sections is comprehensively and truly reflected by an obtained fracture interface, and the assistance is provided to the treatment of clinical fracture.

Description

technical field [0001] The invention relates to a method for making a fracture model, in particular to a method for making an artificial bone fracture model that can reproduce clinical features and conform to the actual fracture interface. Background technique [0002] With the aging of the population, the widespread use of hormone drugs and the increase in traffic accidents, the incidence of fractures has increased significantly. According to the differences in fractures at different parts and their biomechanical characteristics, corresponding treatment measures should be taken as soon as possible to reduce complications. , improve the prognosis and reduce the fatality rate. Therefore, people pay more and more attention to the testing and research of the biomechanical properties of bone. [0003] In order to solve the problems of limited sources of human corpse bones and high cost, Chinese patent 101602056 discloses a "method for preparing artificial femur specimens using ...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that in the prior art, the fracture interface is relatively single, which cannot fully reflect the clinically complex and diverse fracture interface, and there is a certain gap between the measured mechanical data between the fracture surfaces and the actual force of the fracture surface; and In order to avoid problems such as individual differences caused by manual production, a method for making an artificial bone fracture model that can highly simulate the clinical fracture interface is provided.