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Stent graft for reinforcement of vascular abnormalities and associated method

A technology for covering stents and blood vessels, which can be applied in the directions of blood vessels, stents, and devices of human tubular structures, etc., can solve problems such as bulkiness, hindering treatment, and lengthening.

Inactive Publication Date: 2011-01-12
AGA MEDICAL CORP MS US
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these stent-grafts can be radially compressed for delivery, these stent-grafts are not structured to be significantly constrained and elongated, and are therefore bulky, preventing the stent-grafts from being delivered to treat smaller arteries tumor

Method used

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  • Stent graft for reinforcement of vascular abnormalities and associated method
  • Stent graft for reinforcement of vascular abnormalities and associated method
  • Stent graft for reinforcement of vascular abnormalities and associated method

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Embodiment Construction

[0020] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, embodiments of the invention are shown. Indeed, the invention may be embodied in many different ways and should not be construed as limited to the embodiments described herein; rather, these embodiments are provided for disclosure of the invention to satisfy legal requirements. Identical parts will be given the same number throughout.

[0021] see figure 1 , the stent graft 10 is shown positioned within a lumen 12 having a vascular malformation such as an aneurysm 14 . According to one embodiment, lumen 12 is the abdominal aorta branching into left and right common iliac arteries 16 and 18 . Such as figure 1 As shown, stent graft 10 is configured to bridge aneurysm 14 and includes folded portion 28 joined to lumen 12 . As explained in detail below, folded portion 28 is configured to expand and flip fold upon itself into a heat-s...

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Abstract

A stent graft for reinforcement of a vascular abnormalities and an associated method are provided. According to one embodiment, the stent graft includes a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration. The tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and the tubular structure is heat set such that at least a portion of the proximal and / or distal ends is configured to fold over on itself when unconstrained.

Description

technical field [0001] The present invention relates to a vascular indwelling tube, more specifically, to a covered stent for treating vascular malformations such as aneurysms. Background technique [0002] An aortic aneurysm is a weak area in the aorta, the main blood vessel that carries blood from the heart to the rest of the body. A common type of aneurysm is the abdominal aortic aneurysm ("AAA"), which can result from hardening of the arteries. As blood flows through the aorta, the fragile vessel walls thin over time and balloon up, or even burst when the walls become too thin. Most commonly, aortic aneurysms develop in the portion of the vessel below the origin of the renal arteries. Aneurysms can be located in vessels supplying the hip joint and pelvis, including the iliac arteries. [0003] Once an aneurysm reaches 5 centimeters in diameter, treatment is usually considered necessary to prevent rupture. Smaller than 5 cm, the risk of aneurysm rupture is lower than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90
CPCA61F2250/0039A61F2/90A61F2250/0037A61F2/07
Inventor K·安普拉茨R·莱恩
Owner AGA MEDICAL CORP MS US
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