High-compliance three-branch stent used in aorta surgery

A compliant, aortic technology, applied in the field of medical equipment, can solve the problems of high difficulty, many anastomotic vessels, and long operation time, shortening the time of deep hypothermic circulatory arrest, reducing complications and mortality, and reducing the cost of surgery. effect of cost

Pending Publication Date: 2017-10-31
丁盛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when Stanford type A aortic dissection or aortic aneurysm affects the aortic arch, only interventional techniques cannot achieve the effect of endovascular isolation
Thoracotomy is routinely used for such diseases, total aortic arch replacement is performed under extracorporeal circulation, and the three important branches of the aortic arch are anastomosed one by one. Anastomosis of the replaced aortic arch artificial vessels requires deep hypothermic circulatory arrest, long operation time, many anastomotic vessels, high difficulty, large trauma, many postoperative complications, slow recovery, and high follow-up treatment costs
The current method is to sew three branches on the straight stent to simplify the operation, but the effect is not ideal
[0003] The disadvantages of the prior art are: since the aortic arch is highly curved, the compliance of the straight stent is poor, and the distance between the branches of the aortic arch varies greatly among individuals, and it is difficult to match the artificial branches; in addition, the branches are directly sutured on the membrane of the main stent, Lack of support, so branches can easily be crushed or displaced, resulting in poor blood flow

Method used

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  • High-compliance three-branch stent used in aorta surgery
  • High-compliance three-branch stent used in aorta surgery
  • High-compliance three-branch stent used in aorta surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 ,Such as figure 2 Shown:

[0021] A three-branch stent with high compliance during aortic surgery, comprising an arcuate stent-graft and three branches integrated with the arcuate-shaped stent-graft, the arcuate-shaped stent-graft includes a stent lower part 1, a stent arch 2 and a stent upper part 3, The three branches include branch one 4 , branch two 5 and branch three 6 .

[0022] The degree of curvature of the above-mentioned stent arch 2 is consistent with the structure of the aortic arch, and the first branch 4, the second branch 5 and the third branch 6 are respectively arranged on the stent arch 2, and the first branch 4, the second branch 5 and the third branch 6 The positional structure corresponds one-to-one with the three major branch structures emanating from the upper edge of the aortic arch.

[0023] That is, the structure composed of the arch-shaped stent-graft and branch one 4, branch two 5, and branch three-6 is the same as that o...

Embodiment 2

[0030] Such as image 3 Shown:

[0031] A three-branch stent with high compliance during aortic surgery, comprising an arcuate stent graft and three branches integrally arranged with the arcuate stent graft, the arcuate stent graft includes a stent lower part 21, a stent arch part 22 and a stent upper part 23, the Three branches include branch one 24 , branch two 25 and branch three 26 .

[0032] Wherein the entire lower part 21 of the bracket, the bow part 22 of the bracket, the upper part 23 of the bracket, the first branch 24, the second branch 25 and the third branch 26 are all made by an integral molding process, and are seamlessly connected with each other.

[0033] In this embodiment, the lower part 21 of the stent, the arch part 22 of the stent and the upper part 23 of the stent are all composed of a stretchable artificial blood vessel structure.

[0034] Similarly, in this embodiment, branch one 24, branch two 25 and branch three 26 are respectively arranged on the ...

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PUM

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Abstract

The invention discloses a high-compliance three-branch stent used in aorta surgery. The high-compliance three-branch stent used in aorta surgery comprises an arched membrane-covered stent and three branches integrally formed with the arched membrane-covered stent. The arched membrane-covered stent comprises a lower portion (1), an arched portion (2) and an upper portion (3). The three branches include a first branch (4), a second branch (5) and a third branch (6). The bending degree of the arched portion (2) coincides with the structure of the arcus aortae. The first branch (4), the second branch (5) and the third branch (6) are arranged on the arched portion (2). The positional structures of the first branch (4), the second branch (5) and the third branch (6) are in one-to-one correspondence to the structures of three branches starting from the upper edge of the arcus aortae. The high-compliance three-branch stent used in aorta surgery can be well attached to the arcus aortae, and the stent not only has high compliance, but has high universality.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a high-compliance three-branch stent in aortic surgery. Background technique [0002] At present, when Stanford type A aortic dissection or aortic aneurysm affects the aortic arch, only interventional techniques cannot achieve endovascular isolation. Thoracotomy is routinely used for such diseases, total aortic arch replacement is performed under extracorporeal circulation, and the three important branches of the aortic arch are anastomosed one by one. Anastomosis of the replaced aortic arch artificial vessels requires deep hypothermic circulatory arrest, long operation time, many anastomotic vessels, high difficulty, large trauma, many postoperative complications, slow recovery, and high follow-up treatment costs. The currently adopted method is to sew three branches on the straight support to achieve the purpose of simplifying the operation, but the effect is not sat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/07
CPCA61F2/07A61F2/90
Inventor 丁盛张近宝
Owner 丁盛
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