Method and apparatus for intravasculer embolization
First Claim
Patent Images
1. An expandable plug for treating a vascular aneurysm, comprising:
- a biocompatible material, expandable from a first constrained volume to a second, larger volume; and
a blood soluble restraining agent in contact with the expandable material;
wherein the expandable material is in the first, constrained volume and restrained therein by the blood soluble agent.
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Accused Products
Abstract
Disclosed is a method and apparatus to treat an aneurysm. The method involves the introduction of an embolic material into the aneurysm. The embolic material is adapted to permit tissue ingrowth within the region defined by the aneurysm, which results in treatment of the aneurysm. Preferred embolic materials are those having an open cell structure, such as polyvinyl alcohol foams. Also disclosed is a catheter which may be used to introduce an embolic material into an aneurysm.
437 Citations
17 Claims
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1. An expandable plug for treating a vascular aneurysm, comprising:
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a biocompatible material, expandable from a first constrained volume to a second, larger volume; and a blood soluble restraining agent in contact with the expandable material;
wherein the expandable material is in the first, constrained volume and restrained therein by the blood soluble agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The combination of a transluminal delivery wire and expandable plug for treating a vascular site, comprising:
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an elongate flexible delivery wire having proximal and distal ends; and an expandable plug on the distal end of the delivery wire; wherein the expandable plug is expandable from a first introduction volume to a second expanded volume upon exposure to a body fluid; and the expandable plug is releasably secured to the delivery wire such that the plug is released from the delivery wire upon exposure to a body fluid. - View Dependent Claims (11, 12, 13, 14)
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15. An expandable plug delivery system comprising:
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a biocompatible material plug expandable from a first constrained volume to a second, larger volume; a blood soluble restraining agent in contact with the expandable material plug; wherein the expandable material plug is in the first, constrained volume and restrained therein by the blood soluble agent; and wherein the biocompatible material plug is releasably secured to a distal end of an elongate flexible delivery wire. - View Dependent Claims (16, 17)
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Specification