Aneurysm embolic device with an occlusive member

Abstract

An aneurysm embolic device is disclosed for use in occluding the flow of blood within an aneurysm. The aneurysm embolic device includes an expandable sealing member having a circular joining member and reinforcing spokes which give the sealing member a slightly cupped configuration. The embolic device also includes an occlusive member carried by the expandable sealing member. When the aneurysm embolic device is deployed within the aneurysm, the sealing member expands and the occlusive member fills the aneurysm preventing the flow of blood within the aneurysm.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS(S) [0001] This patent application is a divisional patent application of U.S. patent application Ser. No. 10 / 295,196 (Attorney Docket No. CRD0980USNP), filed on Nov. 15, 2002, entitled, “Aneurysm Embolic Device With An Occlusive Member,” which is a nonprovisional patent application of U.S. provisional patent application Ser. No. 60 / 335,489, filed on Nov. 15, 2001.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention relates to catheter-based implantable medical devices for occluding the flow of blood at a preselected position within a blood vessel, and more particularly to an aneurysm embolic device which serves to fill an aneurysm with an occlusive member thereby preventing the flow of blood into the aneurysm. [0004] 2. Description of the Prior Art [0005] Aneurysms typically take the form of a balloon-like swelling in the wall of a vessel which generally results from a weakness in the vessel wall. If untreated, ane...

AI Technical Summary

Benefits of technology

The present invention provides a catheter-based aneurysm embolic system for occluding the flow of blood into an aneurysm. The system includes a deployment catheter, an introducer sheath, and an aneurysm embolic device. The embolic device includes an expandable sealing member and an occlusive member which takes the form of an expandable foam material. The sealing member is designed to expand and seal the mouth of the aneurysm while the occlusive member expands to fill the aneurysm. The system also includes first and second circular membranes which encapsulate the circular joining member and the reinforcing spokes. The expandable sealing member is tubular shaped when disposed within the lumen of the sheath. The technical effects of this invention include improved occlusion of an aneurysm and reduced risk of complications during the embolic procedure.

Problems solved by technology

Aneurysms typically take the form of a balloon-like swelling in the wall of a vessel which generally results from a weakness in the vessel wall.

If untreated, aneurysms may continue expanding until they burst thereby causing hemorrhaging to occur.

If, for example, an aneurysm is present within an artery of the brain, and the aneurysm should burst with resulting cranial hemorrhaging, death could occur.

Aneurysms result from many different causes; however, most aneurysms are caused as a result of a degenerative disease which damages the muscular coating of a vessel with resulting congenital deficiency in the muscular wall of the vessel.

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