Overlay film frame with an opening and bonding method of the overlay film frame

A covering stent and covering technology are applied to stents, devices of human tubular structures, blood vessels, etc., which can solve the problems affecting the success rate of surgery, difficulty in accurate positioning of stent openings and renal artery openings, etc., and are conducive to accurate positioning. Effect

Active Publication Date: 2008-10-15
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, such a covered stent also has the following problems: the covered stent cannot be freely rotated and aligned before being released, ...

Method used

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  • Overlay film frame with an opening and bonding method of the overlay film frame
  • Overlay film frame with an opening and bonding method of the overlay film frame
  • Overlay film frame with an opening and bonding method of the overlay film frame

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] figure 1 The structure of the stent-graft with an opening of the present invention is shown. See figure 1 , the stent graft 1 includes a corrugated NiTi wire stent segment 10 and a polymer material membrane-grafted tube 20 , and the NiTi wire stent segment 10 is sutured on the membrane-grafted tube 20 . figure 1 The NiTi wire in solid line represents that it is sewn outside the film-covered tube 20 , and the NiTi wire in dotted line represents that it is sewn in the film-covered tube 20 . According to the specific position of the patient's renal artery, one or more openings are opened on the grafted tube 20 as the passage of the renal artery or other main blood vessels. These openings include side openings 31 and U-shaped openings 32 .

[0044] figure 2 It is an enlarged view of the side opening 31 . An opening fixing wire 40 made of NiTi ...

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PUM

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Abstract

The invention discloses a covered stent with side openings and a binding method of the covered stent. The covered stent is helpful for accurately positioning stent openings and renal artery openings, so as to improve the operation success ratio. The covered stent comprises a plurality of ring-shaped waveform stent units and a membrane sewn up with the stent units to form a tubular piece, wherein at least one side opening is opened on the tubular piece, an opening fixing filament is sewn on the opening site to support the opening. The covered stent can be used in surgical operation equipment.

Description

technical field [0001] The invention relates to a stent-graft and a binding method for the stent-graft, in particular to a stent-graft with an opening that can be freely rotated and aligned before the stent is released and a binding method for the stent-graft. Background technique [0002] Abdominal aortic aneurysm (AAA) refers to localized or diffuse swelling of the abdominal aorta caused by arterial wall lesions or injuries, with a pulsating mass as the main symptom, and AAA below the level of the renal arteries is more common, and can involve one or both sides iliac artery. Pathology is divided into true aneurysm, false aneurysm and dissecting aneurysm. Once the aneurysm ruptures, the thrombus attached to the wall of the aneurysm forms and falls off, causing arterial embolism, and emergency treatment is required. Abdominal aortic aneurysm is one of the common diseases that threaten the lives of middle-aged and elderly people. With the aging population and the increase i...

Claims

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Application Information

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IPC IPC(8): A61F2/82A61F2/06A61F2/07A61F2/95A61F2/954A61F2/966
CPCA61F2/954A61F2002/9665A61F2/89A61F2002/9511A61F2002/061A61F2002/075A61F2/966A61F2/07
Inventor 朱清罗七一袁振宇高延彬
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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