Individualized branch stent arch reconstruction artificial blood vessel

An artificial blood vessel and stent-type technology, applied in the field of medical devices, can solve the problems of high operative mortality and complication rates, long operation time, and high technical requirements, so as to reduce the difficulty and risk of surgery, reduce the risk and difficulty of surgery, The effect of improving compliance

Pending Publication Date: 2019-01-15
李杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of the existing total arch replacement surgery due to complex operation, high technical requirements, long operation time, large amount of bleeding during operation, and long time of deep hypothermic circulatory arrest, which may easily cause spinal cord damage, etc. Problems that make the surgical mortality rate and complication rate higher
And then provide a kind of individualized branch stent type arch reconstruction artificial blood vessel

Method used

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  • Individualized branch stent arch reconstruction artificial blood vessel
  • Individualized branch stent arch reconstruction artificial blood vessel
  • Individualized branch stent arch reconstruction artificial blood vessel

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Effect test

specific Embodiment approach 1

[0033] Specific implementation mode one: combine Figure 2 to Figure 8 Describe this embodiment, an individualized branch stent-type arch reconstruction artificial blood vessel in this embodiment, including an aortic stent vessel 1, and the textured artificial vessel part of the aortic stent vessel 2 in the descending part of the aortic stent vessel 1 The direction of the end of the heart continues successively to the arch aortic stent vessel 3 and the ascending aortic stent vessel 4, and the arch aortic stent vessel 3 sends out multiple arch branches including a branch stent vessel 5; The aortic stent vessel 2 includes a textured artificial blood vessel and a plurality of descending aortic metal stents 12, the descending aortic metal stent 12 is a ring-shaped metal stent, and a plurality of ring-shaped descending aorta metal stents are sutured on the inner wall of the textured artificial blood vessel 12. The branch stent vessel 5 includes a thin-walled artificial blood vessel...

specific Embodiment approach 2

[0037] Specific implementation mode two: combination Figure 2 to Figure 4 Describe the present embodiment, the arch aortic stent vessel 3 of the present embodiment includes the arch striated vessel main body 14 without stent, the branch stent vessel 5, the Y-shaped arch branch 6, the arch branch 4 7 and the collar-shaped suture Margin one 10; the main body 14 of the arteries of the arch is connected to the Y-shaped arch branch 6 at the front and upper edge of the middle section, and the Y-shaped arch branch 6 is further divided into the first arch branch 8 and the second arch branch 9, and the Y-shaped arch branch The joint between the root of 6 and the main body of the arched blood vessel 14 is outwardly connected to a collar-shaped suture edge 10, the main body of the arched blood vessel 14 is connected to the branch 4 of the arched part on the ventral side of the middle section, and the main body of the arched blood vessel 14 The upper edge of the end section is sutured to...

specific Embodiment approach 3

[0038] Specific implementation mode three: combination Figure 2 to Figure 4 Describe the present embodiment, the thin-walled artificial blood vessel A-1 of the outer layer of the branch stent vessel 5 of the present embodiment continues as a section of stent-free coating at the root of the branch, and this section of coating is connected to the end section of the main body 14 of the arched vein. The upper edge is anastomosed and connected by sutures. Such setting improves the compliance of the branch stent to the individual variation of the left subclavian artery in the arch, and avoids displacement and endoleak of the branch stent. Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention relates to an individualized branch stent arch reconstruction artificial blood vessel, which relates to an artificial blood vessel. The invention solves the technical problems of high technical requirements, easy bleeding, difficult hemostasis, long operation time and high operation risk in the prior total arch replacement operation. The invention comprises an aortic stent vessel (1), The descending aortic stent blood vessel (2) of the aortic stent blood vessel (1) is sequentially formed into an arch aortic stent blood vessel (3) and an ascending aortic stent blood vessel (4) ina proximal direction, and a plurality of arch partial branches including a branch stent blood vessel (5) are emitted from the arch aortic stent blood vessel (3). The descending aortic stent blood vessel (2), the arch part and the ascending part of the descending aortic stent are integrally formed, and the deep hypothermia circulatory arrest time can be shortened from more than 20 minutes to less than 5 minutes without anastomosis, thereby greatly reducing the risk of spinal cord ischemia and paraplegia. The invention is used for aortic arch replacement surgery.

Description

technical field [0001] The invention relates to an artificial blood vessel, in particular to an individualized branch stent-type arch reconstruction artificial blood vessel used for aortic open surgery, and belongs to the field of medical devices. Background technique [0002] Aortic dissection is a large vessel emergency that seriously threatens the safety of patients. Among them, acute type A dissection (Stanford type A), that is, aortic dissection involving the ascending and arches, is the most dangerous type, with sudden onset, rapid progression, and extremely high lethality. Without surgical treatment, the 24-hour mortality rate is close to 25%, the 48-hour mortality rate is close to 50%, and the 30-day mortality rate is as high as 90%. Surgical resection and replacement of the ascending and arch vessels of the lesion is an effective treatment. However, the operation of acute type A dissection is complex and requires high technology, which is a severe challenge for ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06
CPCA61F2/06A61F2002/061
Inventor 李杰
Owner 李杰
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