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Design method of whole vessel endoluminal guide plate based on 3D printing technology

A technology of 3D printing and design method, which is applied in surgical navigation system, surgery, calculation, etc., can solve the problems of inaccurate window opening, precise positioning, difficulty in determining the diameter and length of branch guide plates, etc., and achieve precise window opening positions and finished products. The effect of high precision and shortened production cycle

Active Publication Date: 2022-04-19
NANJING DRUM TOWER HOSPITAL
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  • Abstract
  • Description
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Problems solved by technology

[0009] The purpose of the present invention is to solve the existing problems in the production process of the existing aortic guide plate that the accurate positioning of the branch opening cannot be achieved, the distortion of the aortic guide plate is deformed after implantation, and the selection of the diameter and length of the branch guide plate is difficult to determine; and Customized fenestration guides or branch guides are mostly in the exploratory stage, and a few clinically applied products have the problems of extremely high prices, long production time, and inaccurate fenestration, so a design of a full-vascular intraluminal guide based on 3D printing technology is proposed method

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  • Design method of whole vessel endoluminal guide plate based on 3D printing technology
  • Design method of whole vessel endoluminal guide plate based on 3D printing technology
  • Design method of whole vessel endoluminal guide plate based on 3D printing technology

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specific Embodiment approach 1

[0027] According to the design method of the whole blood vessel intraluminal guide plate based on 3D printing technology in this embodiment, the method is realized through the following steps:

[0028] Step 1. Preprocessing the raw CT data with blood vessels in the data processing center through a three-dimensional reconstruction method to obtain three-dimensional data at the target;

[0029] Step 2. The 3D data at the target obtained in the previous step is processed for the second time in the data processing center through the AI ​​intelligent algorithm; after that, the processed 3D data is corrected to obtain the CAD model of the non-parametric surface sheet; and then the guide plate is implanted Simulation of post-vascular stress-deformation;

[0030] Step 3. The simulation results of the previous step are processed for the third time in the data processing center through reverse engineering technology to obtain the industrial STL model of the fenestration guide plate; whe...

specific Embodiment approach 2

[0032] The difference from the specific embodiment 1 is that in the design method of the whole blood vessel intraluminal guide plate based on 3D printing technology in this embodiment, the original CT data with blood vessels described in step 1 are processed in the data processing center through a three-dimensional reconstruction method. Preprocessing to obtain the 3D data at the target, the specific process is:

[0033] Step 11. Obtain the original CT data with blood vessels, and retain the data information including: patient basic information, medical history information, and image data for information correspondence;

[0034] Step 1 and 2: Use mimics to perform 3D reconstruction of blood vessels, use the Segmentation command to adjust the threshold value, select CT blood vessels, and perform 3D reconstruction based on the selected image to obtain a 3D model of blood vessels, save and export in stl format; attached figure 1 shown;

[0035] Step 13: Use the forward industrial ...

specific Embodiment approach 3

[0036] The difference from the specific embodiment 1 or 2 is that in the design method of the whole blood vessel endoluminal guide plate based on 3D printing technology in this embodiment, the 3D data of the target obtained in the previous step will be processed in the data processing center through AI intelligence in step 2. The algorithm performs the second processing; after that, the processed three-dimensional data is corrected to obtain the CAD model of the non-parametric surface sheet; after that, the process of simulating the stress and deformation of blood vessels after implanting the guide plate is carried out, specifically:

[0037] Step 21. Import the three-dimensional model of blood vessels into geomagic studio2014 software, keep only blood vessel data, and remove other miscellaneous data including bones and internal organs, such as figure 2 shown;

[0038] Step 22. Statistical analysis:

[0039] 1) Perform image recognition on multiple collected CT data, classif...

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Abstract

Design method of whole vessel endoluminal guide plate based on 3D printing technology. It belongs to the field of medical auxiliary equipment design. In the manufacturing process of the existing aortic guide plate, there is a problem that the precise positioning of the branch opening and the fenestration cannot be achieved. The design method of the whole blood vessel endoluminal guide plate based on 3D printing technology, including: preprocessing the original CT data with blood vessels through a three-dimensional reconstruction method to obtain the three-dimensional data at the target; The algorithm is processed for the second time; after that, the processed 3D data is corrected to obtain the CAD model of the non-parametric surface sheet; after that, the stress and deformation of the blood vessel after the guide plate is implanted is simulated; third, the simulation results are carried out for the first time through reverse engineering technology. After three treatments, the industrial STL model of the window opening guide plate is obtained; Fourth, the obtained industrial STL model is printed by a 3D printer to obtain the resin window opening guide plate. The branches and window opening positions designed by the method of the invention are accurate.

Description

technical field [0001] The invention relates to a design method of a whole blood vessel intraluminal guide plate based on 3D printing technology. Background technique [0002] Aortic disease, mainly including aortic aneurysm (AA) and aortic dissection (AD), is a common and serious life-threatening disease. If not treated in time, once an aneurysm or dissecting aneurysm ruptures, the case fatality rate is as high as 78%-94%. In the latter half of the last century, traditional open surgery was the standard method for the treatment of various aortic diseases. However, in the case of aortic dissection (Aortic Dissection, AD), the surgical mortality rate was as high as 21% to 50%. The rate of paraplegia is as high as 10% to 36%. Open surgery for abdominal aortic aneurysm (AAA) has a better effect, but there are still disadvantages such as large surgical trauma, many complications, slow postoperative recovery, especially high mortality in elderly patients with organ insufficienc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/00A61B34/10A61B34/20B33Y10/00B33Y50/00B33Y80/00
CPCA61B34/10A61B34/20B33Y10/00B33Y50/00B33Y80/00A61B2034/105A61B2034/104A61B2034/2068
Inventor 刘昭童垣皓李旭冉周敏捷刘长建李晓强
Owner NANJING DRUM TOWER HOSPITAL