Clot capture systems and associated methods
First Claim
1. A clot removal device for restoring blood flow to a vessel occluded by an obstructive clot, the device having an expanded deployed configuration, and a retracted delivery configuration in which it may be advanced across said obstructive clot, the device comprising:
- an expandable clot retrieval portion configured for deployment on a distal side of the clot, the clot retrieval portion having a plurality of struts forming at least one hoop;
an expandable portion configured for deployment on a proximal side of the clot, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion, and the expandable portion being connected to the clot retrieval portion by a plurality of connecting elements;
a clot receiving space between the clot retrieval portion and the expandable portion; and
a longitudinally-extending member extending through the clot receiving space and coupled to the clot retrieval portion, wherein a central axis of the longitudinally-extending member is located along a central axis of both the clot retrieval portion and the expandable portion, whereinthe clot removal device includes a clot retrieval configuration during withdrawal of the expandable clot retrieval portion into a catheter that is smaller than the expanded deployed configuration of the expanded clot removal device, the clot retrieval configuration maintaining the clot receiving space between the clot retrieval portion and the expandable portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A clot capture system for disengaging a clot 2001 from a vessel wall 2002 and removing the clot 2001 from the vessel 202, includes a clot capture device 2140 for placement on a distal side of a clot 2001. The clot capture device 2140 has a retracted delivery configuration and an expanded deployed configuration. The clot removal device has a proximal support frame 2012, and a distal fiber net 2130. The support frame 2012 has a retracted delivery configuration and an expanded deployed configuration. The proximal support frame 2012 in the expanded configuration defines a proximal inlet mouth for engaging a clot 2001 and a net 2130 for confining the clot 2001. An elongate member facilitates capture and/or withdrawal of a clot 2001 from a vessel 2002. The system also includes a clot debonding device 2091 for placement on a proximal side of a clot 2001. The clot debonding device 2091 has a retracted delivery configuration and an expanded deployed configuration and includes a clot engagement element 2112 which defines a distal abutment in the deployed configuration for urging a clot 2001 into the clot capture device 2140.
273 Citations
16 Claims
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1. A clot removal device for restoring blood flow to a vessel occluded by an obstructive clot, the device having an expanded deployed configuration, and a retracted delivery configuration in which it may be advanced across said obstructive clot, the device comprising:
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an expandable clot retrieval portion configured for deployment on a distal side of the clot, the clot retrieval portion having a plurality of struts forming at least one hoop; an expandable portion configured for deployment on a proximal side of the clot, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion, and the expandable portion being connected to the clot retrieval portion by a plurality of connecting elements; a clot receiving space between the clot retrieval portion and the expandable portion; and a longitudinally-extending member extending through the clot receiving space and coupled to the clot retrieval portion, wherein a central axis of the longitudinally-extending member is located along a central axis of both the clot retrieval portion and the expandable portion, wherein the clot removal device includes a clot retrieval configuration during withdrawal of the expandable clot retrieval portion into a catheter that is smaller than the expanded deployed configuration of the expanded clot removal device, the clot retrieval configuration maintaining the clot receiving space between the clot retrieval portion and the expandable portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A clot removal device for restoring blood flow to a vessel occluded by an obstructive clot, the device having an expanded deployed configuration, and a retracted delivery configuration in which it may be advanced across said obstructive clot, the device comprising:
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an expandable clot retrieval portion configured for deployment on a distal side of the clot, the clot retrieval portion having a plurality of struts forming at least one hoop; an expandable portion configured for deployment on a proximal side of the clot, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion, and the expandable portion being directly connected to the clot retrieval portion by a plurality of connecting elements; a clot receiving space between the clot retrieval portion and the expandable portion; and a longitudinally-extending member extending through the clot receiving space and coupled to the clot retrieval portion, wherein a central axis of the longitudinally-extending member is located along a central axis of both the clot retrieval portion and the expandable portion, wherein the clot removal device includes a clot retrieval configuration during withdrawal of the expandable clot retrieval portion into a catheter that is smaller than the expanded deployed configuration of the expanded clot removal device, the clot retrieval configuration maintaining the clot receiving space between the clot retrieval portion and the expandable portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification