Intralumenal stent graft fixation

A technology of covered stents and frames, applied in stents, medical science, blood vessels, etc., can solve the problems of difficult installation of covered stents and unfavorable colon environment

Active Publication Date: 2017-08-29
WL GORE & ASSOC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, stent-graft devices for use in the gastrointestinal (GI) tract have been difficult to develop, in part due to the relatively hostile colonic environment including peristaltic motion and faeces

Method used

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  • Intralumenal stent graft fixation
  • Intralumenal stent graft fixation
  • Intralumenal stent graft fixation

Examples

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Embodiment Construction

[0018] Implantable medical devices are described herein. For example, provided herein are endoluminal stent-graft devices having integrated anchoring members that can be selectively deployed in situ. Deployment of the anchoring member is also reversible. Accordingly, the stent-graft devices described herein with integrated anchoring members can be retrieved after implantation.

[0019] The anchoring members described herein provide a high degree of migration resistance to the stent-graft device. Accordingly, stent-graft devices with such integrated anchoring members are well suited for use in endoluminal settings such as, but not limited to, the gastrointestinal (GI) tract and vasculature. In some implementations, a stent-graft device described herein is implanted in a patient to seal an opening in a wall of a body cavity. Such openings may result from a variety of medical conditions, eg, resection to remove a lesion, ruptured aneurysm, trauma-induced hole or tear, fistula,...

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Abstract

This document describes intralumenal stent graft devices with integrated anchor members that are selectively deployable in situ. The deployment of the anchor members is also reversible, to thereby facilitate retrieval of the stent graft device. These stent graft devices are well-suited for sealing and repairing defects in a body lumen wall. Such defects can include, but are not limited to, aneurysms and lumen wall openings. In some embodiments, the intralumenal stent graft devices provided herein are well-suited for use in the GI tract including the colon. That is the case because the integrated anchor members provide the stent graft devices with a high level of migration resistance, whereby the stent grafts can remain resiliency located in a desired position within the GI tract despite the peristaltic movements of the GI tract.

Description

technical field [0001] The present disclosure relates generally to implantable medical devices, and more particularly to endoluminal stent-graft devices having integrated anchoring features that are selectively deployable and removable. Background technique [0002] Stent-graft devices can be implanted in patients to treat a variety of medical conditions. For example, stent-graft devices are implanted in patients to treat aneurysms in blood vessels. As another example, a stent-graft device is implanted in a patient to seal an opening in the wall of a body cavity (eg, the gastrointestinal tract) or organ. As another example, a stent-graft device is implanted in a patient to treat a body lumen having a narrowing such that the device opens or expands the passage of fluid flow through the body lumen. [0003] The need to remove lesions from the wall of the colon is common and increasingly worldwide. When a polyp becomes enlarged and invasive beyond just the mucosal layer of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07A61F2/04
CPCA61F2/04A61F2/07A61F2002/045A61F2002/072A61F2220/0016A61F5/0076A61F5/0079A61F2/89A61F2220/0075A61F2/848A61F2002/828A61F2002/8486A61F2002/8483A61F2002/075A61F2/82A61F2/852
Inventor C·S·米哈韦克
Owner WL GORE & ASSOC INC
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