Exclusion Device and System For Delivery

Inactive Publication Date: 2007-12-13
ELECTROFORMED STENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0023] The current invention details an exclusion device and endovascular catheter-based delivery system. The device, when deployed in a lumen or orifice, reduces the flow of fluid past the device. In an illustrative embodiment, the device is delivered endovascularly to the neck of an aneurysm and deployed to blo

Problems solved by technology

When deployed at the neck of an aneurysm, the exclusion device reduces blood circulation

Method used

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Embodiment Construction

[0081] The current invention provides an exclusion device and novel catheter-based endovascular delivery and deployment methods. In the illustrative embodiments depicted in FIGS. 1-18, an exclusion device 10 is delivered to an aneurysm 430, positioned at the neck 435 of the aneurysm, and deployed, thereby blocking the neck of the aneurysm and reducing blood flow into the aneurysm 430. The deployment leaves the parent (proximal) artery 410 fully open.

[0082] At a bifurcation, the proximal artery 410 splits into two smaller arteries 420 as shown in FIGS. 4-8, and FIGS. 11-18. The deployed exclusion device does not block side branch arteries that may exist near the aneurysm. Aneurysms at bifurcations (as shown in FIGS. 4-8 and FIGS. 11-18) and aneurysms on the side of an artery (as shown in FIG. 10) may be treated. The exclusion device, deployed to cover the neck of an aneurysm, reduces blood flow into the aneurysm and triggers a thrombus in the aneurysm that starts the healing process...

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Abstract

A medical flow restrictor that may be used to exclude a saccular aneurysm from the circulatory system. The device, a thin walled, foil-like shell, is compacted for delivery. The invention includes the device, electroforming fabrication methods, delivery assemblies, and methods of placing, and using, the device. A device with an aneurysm lobe and an artery lobe self-aligns its waist at the neck of an aneurysm as the device shell is pressure expanded. Negative pressure is used to collapse both the aneurysm lobe and the artery lobe, captivating the neck of the aneurysm and securing the device. The device works for aneurysms at bifurcations and aneurysms near side-branch arteries. The device, unlike endovascular coiling, excludes the weak neck of the aneurysm from circulation, while leaving the aneurysm relatively empty. Unlike stent-based exclusion, the device does not block perforator arteries. This exclusion device can also limit flow through body lumens or orifices.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of priority under 35 U.S.C. §119(e) to provisional application No. 60 / 799,758, filed May 12, 2006, and to provisional application No. 60 / 855,872, filed Nov. 1, 2006, each of which are incorporated herein by this reference.TECHNICAL FIELD [0002] The present invention relates to the field of medical intraluminal delivery of an implantable device that reduces or stops fluid movement that would otherwise flow or circulate through a body lumen or orifice. The invention is well suited for the treatment of neurovascular aneurysms or any other condition that could benefit by completely, or partially, excluding flow through a body orifice or vessel. BACKGROUND OF THE INVENTION [0003] An aneurysm forms when a dilated portion of an artery is stretched thin from the pressure of the blood. The weakened part of the artery forms a bulge, or a ballooning area, that risks leak or rupture. When a neurovascular aneurysm...

Claims

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Application Information

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IPC IPC(8): A61F2/06
CPCA61B17/12022A61B17/12113A61B17/12136A61B17/12172C25D1/02A61B2017/12054A61B17/12031B05D3/007A61B2017/00526A61B2017/1205
Inventor HINES, RICHARD A.
Owner ELECTROFORMED STENTS
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