Preparation of rapid forming die of individualized airway stent based on 3D printing

Abstract

The invention discloses a preparation method of a rapid forming die of an individualized airway stent based on 3D printing. According to the method, a three-dimensional numerical model of the airway wall of a patient is rebuilt through medical image processing software based on CT scanning images of the chest of a patient, the rapid forming die of the individualized airway stent is designed out according to the model, and the rapid forming die is prepared through the 3D printing technology. Due to the fact that a standard batched production manner is adopted for existing commercial airway stents, the airway stents cannot reflect individual differences of airways of different patients. By means of the preparation method, the airway stent capable of reflecting individual differences of airway anatomical structures of different patients can be prepared; the airway stent is more attached to the airway of the patient, the risk of displacement of the patient is lowered, and excessive hyperplasia of airway granulation tissues can be inhibited; and meanwhile, defects that an existing commercial stent production process procedure is complex, high in cost and the like are well overcome.

Description

technical field [0001] The invention belongs to the field of human airway implant interventional medical devices, and in particular relates to the preparation of a 3D printing-based individualized airway stent mold. Background technique [0002] Airway narrowing due to tumors, tracheomalacia, and intubation has become a common airway disease. Narrowing of the airways can lead to breathing difficulties, insufficient oxygen supply, and in severe cases, even death from suffocation. Clinically, stent implantation is usually used to treat airway stenosis. The implantation of airway stent can rapidly expand the airway and relieve the patient's dyspnea. The airway stents currently used clinically mainly include metal mesh stents and silicone stents. Due to the adoption of a standardized commercial production model, the above-mentioned stents cannot reflect individuality after implantation, cannot fit well with the airway wall, and are prone to complications such as displacement a...

AI Technical Summary

Problems solved by technology

Due to the adoption of a standardized commercial production model, the above-mentioned stents cannot reflect individuality after implantation, cannot fit well with the airway wall, and are prone to complications such as displacement and excessive granulation tissue proliferation

At the same time, the production process of existing commercial airway stents is complex and expensive

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