Modular stent graft and delivery system

A release system, graft technology, applied in the field of medical equipment, can solve problems such as prolonging the process time and increasing the medical risk of patients

Inactive Publication Date: 2008-05-14
余俊豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This bypass surgery also increases the medical risk for the patient and substantially prolongs the course of treatment

Method used

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  • Modular stent graft and delivery system
  • Modular stent graft and delivery system
  • Modular stent graft and delivery system

Examples

Experimental program
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Embodiment Construction

[0061] As shown in FIG. 7, a preferred embodiment of the present invention includes an arterial stent-graft 10 and a branch stent-graft 30 that can be assembled with each other for treating an aneurysm in the aorta near a branch of the aorta.

[0062] aortic stent graft

[0063] As shown in FIG. 8 , the aortic stent-graft 10 may be a conventional stent-graft formed from a wireframe of a general stent 12 and a graft layer 14 . The stent 12 is typically made of stainless steel or an alloy such as nickel-titanium or nitinol. The graft layer 14 is made of a non-porous and durable material such as polytetrafluoroethylene (PTFE), or woven or woven monofilament polyester fibers, forming a conduit with a lumen 15 to block blood flow to the affected portion of the vessel put pressure on. The stent 12 is expandable between a compressed state, in which it can be released to a desired location for treatment, and an expanded state, which is used to open and support the graft layer 14 wi...

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Abstract

A modular aortic stent graft and a modular branched stent graft, expandable between a compressed condition and an expanded condition, for assembling with each other at the treatment area of an aneurysm. The aortic stent graft includes at least one axial opening for receiving a branched segment of the branched stent graft. The branched stent graft includes a branched segment extending from an aortic segment thereof. The aortic segment of the branched stent graft is disposed inside the aortic stent graft, while the branched segment is disposed through the opening of the aortic stent graft in the expanded condition. A set of aortic stent grafts and branched stent grafts are provided in various dimensions to cater the needs for different patients.

Description

technical field [0001] The present invention relates to a medical device, and more particularly to a composite stent-graft and a system for releasing the composite stent-graft to a target location in a blood vessel to treat an aneurysm. Background technique [0002] An aneurysm is a weakened area of ​​an artery that protrudes and enlarges over time due to blood pressure. Aneurysms often affect the aorta, the largest artery that carries blood from the heart through the chest and abdomen. Aneurysms can rupture, cause massive internal bleeding, and can be fatal if left untreated. [0003] The conventional approach to treating aneurysms is to place a stent-graft in the aorta at the site of the aneurysm. A stent-graft is an expandable framework using wire that supports a continuous sealed tube that is open at both ends through which blood flows. The stent-graft seals the aneurysm and allows blood to flow without adding pressure to the protrusion. Stent grafts typically have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61M29/02A61L27/50A61L31/00A61F2/06
CPCA61F2250/0097A61F2/90A61F2/07A61F2250/006A61F2/954A61F2002/061A61F2/958A61F2002/075A61F2002/065A61F2250/0098
Inventor 余俊豪
Owner 余俊豪
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