Clot capture systems and associated methods
AssigneeNeuravi Limited
InventorsEamon Brady, David Vale, Michael Gilvarry, Mahmood Razavi, John O'Shaughnessy
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Abstract
A clot capture device for restoring blood flow to a vessel occluded by a clot including a plurality of struts formed by interconnected fibers terminating in a distal end. An open proximal end includes a clot capture space larger than the distal end. The device includes an expanded deployed configuration and a retracted delivery configuration whereby the device is advanceable through a microcatheter across the clot, and the device is configured such that upon deployment the device is deployed distal to the clot and then withdrawn to remove the clot from the vessel.
Claims18
A clot capture device for restoring blood flow to a vessel occluded by a clot, comprising:
- a net formed from a single fiber, the net forming a plurality of struts connected to a distal collar at a distal end wherein the struts are interconnected forming closed loops without rigidly fixing the struts at cross over points such that the closed loops are slidable relative to one another allowing the device to change its shape in response to the clot being irregularly shaped;
- an open proximal end comprising a clot capture space larger than the distal end;
- wherein the device comprises an expanded deployed configuration and a retracted delivery configuration whereby the device is advanceable through a microcatheter across the clot, and the device is configured to be deployed distal to the clot and then configured to be withdrawn to remove the clot from the vessel.
A method, including:
- delivering a microcatheter to a site of a clot in a blood vessel;
- positioning a clot capture device in a lumen of the microcatheter, the device comprising:
- a net formed from a single fiber, the net forming a plurality of struts connected to a distal collar at a distal end wherein the plurality of struts are interconnected forming closed loops without rigidly fixing the struts at cross over points such that the closed loops are slidable relative to one another allowing the device to change its shape in response to the clot being irregularly shaped;
- an open proximal end comprising a clot capture space larger than the distal end, the device comprising an expanded deployed configuration and a retracted delivery configuration in the microcatheter,
- distally advancing the microcatheter and the clot capture device across the clot;
- proximally translating the microcatheter while leaving the clot capture device distal of the clot thereby causing the device to deploy into the expanded deployed configuration;
- proximally translating the clot capture device to capture the clot and draw the clot and the clot capture device into the microcatheter.
Dependencies are inferred from the claim text.