Method for implementing aortic stent in-vitro fenestration by virtue of 3D printing model

A 3D printing, aortic technology, applied in the direction of stents, human tubular structure devices, blood vessels, etc., can solve the problems that surgeons cannot directly participate, limited surgery cannot be customized, high cost and risk, and reduce medical expenses. , good social benefits, and the effect of improving efficiency and safety

Inactive Publication Date: 2017-05-10
BEIJING JIKESAN FULL VISION TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a procedure makes fenestration inefficient and not accurate enough, the surgeon cannot directly participate, and the surgery within a limited period cannot be customized
Therefore, it is difficult to carry out such a process on a large scale at present, and the entire operation process is time-consuming, laborious, costly and risky

Method used

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Experimental program
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Embodiment Construction

[0032] The present invention relates to a kind of method that uses 3D printing model to carry out the method for in vitro fenestration of aortic stent, which comprises the following process steps:

[0033] 1) CT or MRI scan of the patient's aorta to obtain image data and form a DICOM file;

[0034] 2), identify the DICOM file in step 1), extract different data templates, and modify them to make the template clearer and more complete;

[0035] 3), intercept the image in step 2), remove unnecessary parts, keep only the opening of the aortic branch, and delete the part far from the opening;

[0036] 4), process the 3D image formed in step 3) to form an STL file;

[0037] 5), import the data processed in step 4) into the 3D printer, and print out the lesion model; the material of the model is opaque, translucent or transparent, hard or soft; the model is sterilized after completion deal with;

[0038] 6), select the appropriate type of aortic stent-type blood vessel, and releas...

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PUM

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Abstract

The invention relates to a method for implementing aortic stent in-vitro fenestration by virtue of a 3D printing model. The method comprises the following processing steps: acquiring CT or nuclear magnetism imaging data of aorta and branches of a patient, and processing the data into a data format which is recognizable for a 3D printer; transmitting the processed data to the 3D printer and printing the data by virtue of the printer; polishing an obtained mode; disinfecting the mold at normal temperature and keeping the disinfected mode on an operating table; placing an aortic stent graft in the mold, and making marks on the stent in accordance with positions and sizes of branched artery orifices; taking out the stent and conducting fenestration reforming in accordance with the marks; re-installing the reformed stent in a conveyor; and releasing the stent in vivo, and finally reconstructing branched arteries by virtue of a window. With the application of the method provided by the invention, the indication scope of an endovascular repair technology is widened, the efficiency and the accuracy of the aortic stent in vitro fenestration are enhanced, the occurrence rate of complications is reduced and operation safety is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to an in vitro fenestration method for an aortic stent, in particular to a method for in vitro fenestration of an aortic stent using a 3D printing model, and belongs to the technical field of 3D printing. [0003] 【Background technique】 [0004] Endovascular repair of aortic disease has been used clinically for more than 20 years, and its indications are becoming wider and wider, but it is very difficult to deal with lesions involving branch vessels. In the abdominal aortic segment, for patients with splanchnic arteries involved in lesions or lesion anchoring areas, conventional aortic endovascular repair techniques cannot be directly completed due to the reconstruction of splanchnic arteries; The branched blood vessels make the endovascular treatment of lesions in this part still a worldwide problem. Traditional surgical techniques for the treatment of abdominal aortic lesions involving visceral arteries require laparo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07B33Y10/00B33Y40/00B33Y50/00B33Y80/00
CPCA61F2/07B33Y10/00B33Y40/00B33Y50/00B33Y80/00
Inventor 郭伟张宏鹏
Owner BEIJING JIKESAN FULL VISION TECH CO LTD
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