A pre-bending mold for thoracic aortic stent ring

A thoracic aorta and mold technology, applied in the field of thoracic aortic stent ring pre-bending and shaping molds, can solve problems such as unsolvable problems, and achieve the effects of good adherence and reduction of endoleak

Active Publication Date: 2021-07-16
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setting mold still uses a "W"-shaped bracket ring, so the above technical problems cannot be solved

Method used

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  • A pre-bending mold for thoracic aortic stent ring
  • A pre-bending mold for thoracic aortic stent ring
  • A pre-bending mold for thoracic aortic stent ring

Examples

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0018] A kind of thoracic aortic stent ring pre-bending shaping mold, its structure is as Figure 4 As shown, it is composed of a shaping core 1, a lower shaping support 2, and an upper shaping support 3, and its structure is as follows Figure 1-3 shown.

[0019] Such as figure 1 As shown, in order to adapt to the bending state at the aortic arch, the shaping surface 11 of the shaping core 1 is designed to be 1 / 4 of the bracelet surface. In order to save material and reduce weight, the shaped ...

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Abstract

The invention relates to a pre-bending shaping mold for a thoracic aorta stent ring, which comprises a shaping core, a lower shaping support and an upper shaping support. The pre-bent stent ring made by the shaping die of the present invention is in the shape of a curved cylinder in a natural state. Compared with the existing straight cylindrical stent ring, the pre-bent stent ring can be used for thoracic aortic stents to make it more wall-attachable , especially at the arterial arch, it is more suitable for the curved shape of the aorta, which is beneficial to reduce complications such as endoleak, thrombus, and new rupture.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a pre-bending mold for a thoracic aorta stent ring. Background technique [0002] As a high-mortality vascular disease, the incidence of thoracic aortic dissection and aneurysm is increasing year by year. Endovascular aortic repair (EVAR) technology has good curative effect in the treatment of thoracic aortic dissection and aneurysm, its application is becoming more and more extensive, and has become an indispensable method. [0003] Most of the existing thoracic aortic stents use a "W"-shaped stent ring, which is straight in the axial direction in a natural state. With this design, after the stent is implanted in the thoracic aorta, the wall is not well adhered, and the arterial arch cannot well adapt to the bending state of the aorta, and complications such as endoleak, thrombus, and new rupture are prone to occur. [0004] Chinese patent CN107126299A disc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/07
CPCA61F2/07
Inventor 闫士举
Owner UNIV OF SHANGHAI FOR SCI & TECH
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