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Virtual model forming device and method based on key point control

A technology of virtual model and molding device, which is applied in the direction of human tubular structure devices, stents, blood vessels, etc., can solve the problem of long time for continuous printing of aortic models, and achieves the goal of improving doctor's participation, improving molding efficiency, and reducing the number of pressings. Effect

Pending Publication Date: 2021-06-11
THE CENT HOSPITAL OF WUHAN
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a virtual model forming device and method based on key point control, which solves the problem that the traditional 3D printing technology takes too long to continuously print the aorta model by fitting the solid model through the key point data

Method used

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  • Virtual model forming device and method based on key point control
  • Virtual model forming device and method based on key point control

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Embodiment Construction

[0042] Such as Figure 1-10 Among them, a virtual model forming device based on key point control, including a workbench 1, a cross slide mechanism 2 is provided on the workbench 1, a linear motor 3 is connected to the cross slide mechanism 2, and the linear motor 3 includes a The point pressing bar 301, the first array needle plate 4 is arranged under the linear motor 3, the first array needle plate 4 includes a plurality of thin needle columns 403 that can slide up and down, and the point pressing bar 301 is used to press down the thin needle columns 403.

[0043] Utilize the virtual data of the aorta model 12 and its branches 1201, write a key point position pressing program in matrix form, control the cross slide mechanism 2 and the linear motor 3 to drive the point pressing rod 301 to press down the thin needle column 403 at the designated position, A plurality of fine needle columns 403 are combined to form a required contour surface, and the first array needle plate 4 c...

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Abstract

The invention provides a virtual model forming device and method based on key point control. The virtual model forming device comprises a workbench, a cross-shaped sliding table mechanism is arranged on the workbench, a linear motor is connected to the cross-shaped sliding table mechanism and comprises a point pressing rod capable of sliding up and down, and a first array needle plate is arranged below the linear motor; the first array needle plate comprises a plurality of thin needle columns capable of sliding up and down, the point pressing rods are used for pressing the thin needle columns downwards, and the diameter of the point pressing rods is smaller than the minimum center distance of the adjacent thin needle columns; a virtual model is rapidly converted into a real model by utilizing a digital technology, so that the participation degree of a doctor is improved, and the in-vitro windowing position of the aortic stent is conveniently and intuitively confirmed; and key points of aorta virtual model data are extracted, a multi-layer needle plate device is utilized, an upper-layer needle column is pressed through a three-axis mechanism, a model curved surface is fitted through a transitional flexible thin plate, the pressing frequency is greatly reduced, and the forming efficiency is improved.

Description

technical field [0001] The invention relates to the field of auxiliary medical devices, in particular to a virtual model forming device and method based on key point control applied to aortic stent fenestration. Background technique [0002] The current commercialized pre-fenestrated or multi-branched aortic stents need to upload the patient's imaging data to the device manufacturer's laboratory. The positional relationship of the artery, the size and shape of the opening, and then perform the fenestration operation on the stent according to the data. Such procedures cannot be directly involved by the surgeon, and emergency or urgent surgery 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. Moreover, commercial stents without fenestration or branching have disadvantages such as low fenestration efficiency and insufficient precision for in...

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 吴伟程龙尚玉强李炳
Owner THE CENT HOSPITAL OF WUHAN