Method and apparatus for allowing blood flow through an occluded vessel
First Claim
1. A device positionable within a small intracranial blood vessel exhibiting an occlusion caused by a thrombosis or an embolism, the device comprisinga self expandable tubular body, said tubular body configured to be constrained in a first small diameter state for manipulation to, and through, the occlusion of the small blood vessel, and a second large diameter state for when said tubular body is deployed within the occlusion,a delivery catheter for delivery of said tubular body;
- said device comprising a first member coupled to a proximal end of said tubular body, and a second member coupled to a distal end of said tubular body, said members pullable and pushable relative to each other to change a cross sectional area of said tubular body after self-expansion thereof;
wherein at least a portion of said first member is an integral part of said self expandable tubular body, formed as a local elongated protrusion of said self expandable tubular body;
wherein said first member is extendable through the delivery catheter, running through the catheter and out of a proximal end thereof;
wherein said second member comprises a filament that extends distally beyond said distal end of said tubular body; and
wherein said first and second members are movable with respect to each other to compress said tubular body to increase its diameter or stretch said tubular body to decrease its diameter.
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Accused Products
Abstract
A device arranged to sustain and/or provide at least partial patency of a small blood vessel exhibiting an occlusion, the device constituted of a tubular body expandable from a first small diameter state for manipulation to, and through, the occlusion of the small blood vessel and a second large diameter state, the inner dimensions of the second large diameter state being no more than 50% of the diameter of the small blood vessel at the occlusion location, the device presenting a conduit for blood flow through the occlusion when in the large diameter state. In one embodiment the small blood vessel is an intracranial blood vessel.
139 Citations
31 Claims
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1. A device positionable within a small intracranial blood vessel exhibiting an occlusion caused by a thrombosis or an embolism, the device comprising
a self expandable tubular body, said tubular body configured to be constrained in a first small diameter state for manipulation to, and through, the occlusion of the small blood vessel, and a second large diameter state for when said tubular body is deployed within the occlusion, a delivery catheter for delivery of said tubular body; -
said device comprising a first member coupled to a proximal end of said tubular body, and a second member coupled to a distal end of said tubular body, said members pullable and pushable relative to each other to change a cross sectional area of said tubular body after self-expansion thereof; wherein at least a portion of said first member is an integral part of said self expandable tubular body, formed as a local elongated protrusion of said self expandable tubular body;
wherein said first member is extendable through the delivery catheter, running through the catheter and out of a proximal end thereof;
wherein said second member comprises a filament that extends distally beyond said distal end of said tubular body; andwherein said first and second members are movable with respect to each other to compress said tubular body to increase its diameter or stretch said tubular body to decrease its diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification