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Personalized airway stent manufacturing technology

A personalized and airway technology, applied in the field of preparation of personalized airway stents, can solve the problems of granulation tissue hyperplasia, difficult to fit the patient's airway, etc., and achieve the effect of reducing excessive hyperplasia

Inactive Publication Date: 2016-07-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and defects that the existing commercial airway stents are difficult to fit the patient's airway and easily cause granulation tissue hyperplasia

Method used

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the embodiments, but the embodiments of the present invention are not limited thereto.

[0019] Step 1: Obtain CT scan data of the narrow part of the patient's airway, and reconstruct a three-dimensional numerical model of the narrow part of the patient's airway;

[0020] Step 2: Smooth and trim the airway model, and expand the diameter of the stenosis by 20% to 40% in the three-dimensional numerical model reconstruction software;

[0021] Step 3: On this basis, extend the outermost wall of the airway by 10% as the outer wall of the numerical model of the airway stent, and automatically generate a three-dimensional numerical model of the personalized airway stent after the model is closed;

[0022] Step 4: Input the model designed in the previous step into the 3D printer, and add biomedical materials such as silicone for 3D printing, thereby preparing a personalized airway stent.

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PUM

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Abstract

The invention discloses a personalized airway stent manufacturing technology.A personalized airway stent is manufactured by utilizing a CT image to reestablish an airway stenosis model of a patient, expanding the stenosis of the airway model in three-dimensional numerical model reestablishment software by 20%-40% and then outwards expanding the wall face of the outmost side of the processed airway model by 10% to form the outer wall of the stent.A three-dimensional numerical model of the personalized airway stent is designed through the processing.Finally, the personalized airway stent model is imported into a 3D printer, and silicone and other medical biological materials are injected to manufacture the personalized stent conforming to the airway structure of the patient.Three-dimensional modeling is performed according to airway stenosis of different patients, the personalized airway stents are designed, and the shortcomings and defects that existing commercial airway stents difficultly fit the airways of the patients and granulation tissue proliferation is easily caused are overcome.

Description

technical field [0001] The invention belongs to the field of human airway implant interventional medical devices, and in particular relates to a preparation technology of a personalized airway stent. Background technique [0002] In recent years, various benign and malignant diseases and airway diseases caused by trauma, tracheotomy or intubation have been increasing, such as airway stenosis, tracheal wall collapse, airway-esophageal or gastric remnant fistula, airway-thoracic fistula, etc. , airway stenosis and tracheal wall collapse are usually treated clinically with stent implantation, which can rapidly expand the airway and relieve dyspnea. Airway-esophagus or remnant gastric fistula, airway-thoracic fistula, etc. Stent implantation for closure. Since Trendelenburg and Bond placed T-shaped tubes for the treatment of airway stenosis in the 1890s, people have been working on the research of airway stents, and various materials have been used to design various airway sten...

Claims

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Application Information

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IPC IPC(8): A61F2/82B33Y10/00
CPCA61F2/82A61F2240/001B33Y10/00
Inventor 张治国孙亿民李振潇朱明江晨张翼飞邓林红
Owner CHANGZHOU UNIV
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