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, the device comprising:
- an expandable clot retrieval portion having a plurality of struts forming a clot inlet mouth having a pair of opposed bifurcations at a periphery of a proximal end of the clot retrieval portion, wherein the clot inlet mouth includes a distal-most apex at a midpoint between the pair of opposed bifurcations;
an expandable portion located proximal the clot retrieval portion, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion;
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 two distal struts extend distally from each bifurcation of the pair of opposed bifurcations.
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Accused Products
Abstract
A clot capture system for disengaging a clot from a vessel wall and removing the clot from the vessel. The system may include a clot capture device for placement on a distal side of a clot. The clot capture device may have a retracted delivery configuration and an expanded deployed configuration. The clot removal device may have a proximal support frame, and a distal fiber net. The support frame may have a retracted delivery configuration and an expanded deployed configuration. The proximal support frame in the expanded configuration may define a proximal inlet mouth for engaging a clot and a net for confining the clot. An elongate member may facilitate capture and/or withdrawal of a clot from a vessel.
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Citations
17 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, the device comprising:
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an expandable clot retrieval portion having a plurality of struts forming a clot inlet mouth having a pair of opposed bifurcations at a periphery of a proximal end of the clot retrieval portion, wherein the clot inlet mouth includes a distal-most apex at a midpoint between the pair of opposed bifurcations; an expandable portion located proximal the clot retrieval portion, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion; 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 two distal struts extend distally from each bifurcation of the pair of opposed bifurcations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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, the device comprising:
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an expandable clot retrieval portion having; a plurality of struts forming a clot inlet mouth, the clot inlet mouth including a pair of opposed bifurcations at a periphery of a proximal end of the clot retrieval portion, the bifurcations including branches extending distally from a bifurcation point, and a single strut extending proximally from the bifurcation points; an expandable portion located proximal the clot retrieval portion, the expandable portion having a plurality of struts and a proximally tapering portion at a proximal end of the expandable portion; and a clot receiving space between the clot retrieval portion and the expandable portion; and a tubular longitudinally-extending member extending through the clot receiving space and coupled to the clot retrieval portion, wherein a central axis of the tubular longitudinally-extending member is located along a central axis of both the clot retrieval portion and the expandable portion, and the tubular longitudinally-extending member extends through the clot retrieval portion and is coupled to the clot retrieval portion at a distal end of the clot retrieval portion. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. 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, 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 a clot inlet mouth having a pair of opposed bifurcations at a periphery of a proximal end of the clot retrieval portion, wherein the clot inlet mouth includes a distal-most apex at a midpoint between the pair of opposed bifurcations, and wherein the clot retrieval portion includes a distally tapering distal end portion; 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; a clot receiving space between the clot retrieval portion and the expandable portion; and a tubular longitudinally-extending member extending through the clot receiving space and coupled to the clot retrieval portion, wherein a central axis of the tubular longitudinally-extending member is located along a central axis of both the clot retrieval portion and the expandable portion, and the tubular longitudinally-extending member is coupled to the clot retrieval portion at a distal end of the clot retrieval portion; wherein two distal struts extend distally from each bifurcation of the pair of opposed bifurcations.
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Specification