阅读说明：本技术 一种肿瘤脱模3d模型制作方法 (Tumor demolding 3D model manufacturing method ) 是由 马立强 于 2020-02-26 设计创作，主要内容包括：本发明涉及人体医学模型领域,特别为一种肿瘤脱模3D模型制作方法。本发明包括如下步骤：步骤一：采集患者手术部位的CT图像或MR图像,并将采集获取的CT图像或MR图像进行立体重建后形成扫描图像立体模型；步骤二：以蜂蜡为打印原料,采用3D打印机打印出人体器官铸件模型；步骤三：使用耐高温材料制作外范件,并将人体器官铸件模型包裹在外范件中；步骤四：将外范件置于70摄氏度以上的环境中加热至人体器官铸件模型完全融化；步骤五：将硅胶倒入外范件中凝固脱模后形成肿瘤脱模3D模型。本发明制作的模型边缘锯齿少、边缘清晰。(The invention relates to the field of human body medical models, in particular to a method for manufacturing a tumor demolding 3D model. The invention comprises the following steps: the method comprises the following steps: acquiring a CT image or an MR image of a surgical part of a patient, and performing stereo reconstruction on the acquired CT image or MR image to form a scanning image stereo model; step two: taking beeswax as a printing raw material, and printing a human organ casting model by adopting a 3D printer; step three: manufacturing an external model by using a high-temperature resistant material, and wrapping a human organ casting model in the external model; step four: heating the external model in an environment with the temperature of more than 70 ℃ until the human organ casting model is completely melted; step five: and pouring the silica gel into the outer mold, solidifying and demolding to form the tumor demolding 3D model. The model manufactured by the invention has less edge sawteeth and clear edge.)

1. A tumor demolding 3D model manufacturing method is characterized in that:

the method comprises the following steps:

the method comprises the following steps: acquiring a CT image or an MR image of a surgical part of a patient, and performing stereo reconstruction on the acquired CT image or MR image to form a scanning image stereo model;

step two: taking beeswax as a printing raw material, and printing a human organ casting model by adopting a 3D printer;

step three: manufacturing an external model by using a high-temperature resistant material, and wrapping a human organ casting model in the external model;

step four: heating the external model in an environment with the temperature of more than 70 ℃ until the human organ casting model is completely melted;

step five: and pouring the silica gel into the outer mold, solidifying and demolding to form the tumor demolding 3D model.

2. The method for tumor de-molding 3D modeling according to claim 1, wherein: the outer model is made of soil.

Technical Field

The invention relates to the field of human body medical models, in particular to a method for manufacturing a tumor demolding 3D model.

Background

At present, CT or MR scanning is generally adopted for preoperative examination of tumor patients, and because tumor resection operations in organs are very complicated and a large number of nerves, blood vessels and lymph nodes are arranged nearby, reconstructed images of the tumor patients are usually directly printed by a printer, so that edge sawteeth are serious, the outer edge is blurred, and the effect of a model is poor.

Disclosure of Invention

The invention aims to: the tumor demolding 3D model making process has less sawteeth and clear edge.

The purpose of the invention is realized by the following technical scheme: a tumor demolding 3D model manufacturing method is characterized in that: the method comprises the following steps:

the method comprises the following steps: acquiring a CT image or an MR image of a surgical part of a patient, and performing stereo reconstruction on the acquired CT image or MR image to form a scanning image stereo model;

step two: taking beeswax as a printing raw material, and printing a human organ casting model by adopting a 3D printer;

step three: manufacturing an external model by using a high-temperature resistant material, and wrapping a human organ casting model in the external model;

step four: heating the external model in an environment with the temperature of more than 70 ℃ until the human organ casting model is completely melted;

step five: and pouring the silica gel into the outer mold, solidifying and demolding to form the tumor demolding 3D model.

For better implementation of the scheme, the following optimization scheme is also provided:

further, the outer model piece is made of earth.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts a mode of firstly manufacturing the external model, the contact part between the external model and the human organ casting model can fully fill the original 3D printed edge sawtooth gap under extrusion, and the middle part is emptied by a heating and dissolving mode to form a reverse mould and then the model is poured again to manufacture, so that the manufactured model has clear edge and can be repeatedly utilized.

Detailed Description

The present invention is described in detail below:

the manufacturing process comprises the following steps:

the method comprises the following steps: acquiring a CT image or an MR image of a surgical part of a patient, and performing stereo reconstruction on the acquired CT image or MR image to form a scanning image stereo model;

step two: taking beeswax as a printing raw material, and printing a human organ casting model by adopting a 3D printer;

step three: manufacturing an external model by using a high-temperature resistant material, and wrapping a human organ casting model in the external model;

step four: heating the external model in an environment with the temperature of more than 70 ℃ until the human organ casting model is completely melted;

step five: and pouring the silica gel into the outer mold, solidifying and demolding to form the tumor demolding 3D model.

Further, the outer model piece is made of earth.

While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be in any way limited except by the appended claims and their equivalents.