UMBRELLA DISTAL EMBOLIC PROTECTION DEVICE
First Claim
1. An embolic protection device for capturing emboli during treatment of a stenotic lesion in a blood vessel, the device comprising:
- a core wire;
a plurality of attachment cables having a proximal end and a distal end;
the proximal end being coupled to the core wire;
a plurality of filter struts having a proximal end and a distal end;
the distal end being joined together to forming a basket or cage structure; and
a filter member having a proximal end and a distal end with the filter member extending freely from the proximal end to a closed distal end forming at least one annulus chamber;
the proximal end being circumferentially attached to the distal end of the attachment cables and the proximal end of the filter struts;
wherein the device is configured to move between an uncoiled state for engagement with the blood vessel and a coiled state for filter retrieval and delivery;
wherein the core wire is rotated in a first direction to wrap the attachment cables, filter struts, and filter member around the core wire in the coiled state and is rotated in a second or opposite direction to unwrap the attachment cables, filter struts, and filter member in the uncoiled state.
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Accused Products
Abstract
An embolic protection device for capturing emboli during treatment of a lesion in a blood vessel is presented. This embolic protection device generally comprises a core wire, a plurality of attachment cables and filter struts, and a filter member being configured to move between an expanded state for engagement with the blood vessel and a collapsed state for filter retrieval and delivery. The filter member is circumferentially attached to the attachment cables and filter struts and extends freely from its proximal end to a closed distal end. The core wire is rotated in a first direction to wrap the attachment cables, filter struts, and filter member around the core wire in the collapsed state and is rotated in a second or opposite direction to unwrap the attachment cables, filter struts, and filter member in the expanded state.
184 Citations
18 Claims
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1. An embolic protection device for capturing emboli during treatment of a stenotic lesion in a blood vessel, the device comprising:
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a core wire; a plurality of attachment cables having a proximal end and a distal end;
the proximal end being coupled to the core wire;a plurality of filter struts having a proximal end and a distal end;
the distal end being joined together to forming a basket or cage structure; anda filter member having a proximal end and a distal end with the filter member extending freely from the proximal end to a closed distal end forming at least one annulus chamber;
the proximal end being circumferentially attached to the distal end of the attachment cables and the proximal end of the filter struts;wherein the device is configured to move between an uncoiled state for engagement with the blood vessel and a coiled state for filter retrieval and delivery; wherein the core wire is rotated in a first direction to wrap the attachment cables, filter struts, and filter member around the core wire in the coiled state and is rotated in a second or opposite direction to unwrap the attachment cables, filter struts, and filter member in the uncoiled state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for embolic protection during treatment of a stenotic lesion in a blood vessel, the method comprising the steps of:
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introducing a catheter into the blood vessel; placing the embolic protection device in the catheter in a collapsed state; deploying an embolic protection device in a collapsed state into the blood vessel past the lesion and causing the device to move from the collapsed state to an expanded state in order to capture emboli during treatment, the device comprising; a core wire; a plurality of attachment cables having a proximal end and a distal end; the proximal end being coupled to the core wire; a plurality of filter struts having a proximal end and a distal end;
the distal end being joined together to forming a basket or cage structure; anda filter member having a proximal end and a distal end with the filter member extending freely from the proximal end to a closed distal end forming at least one annulus chamber;
the proximal end being circumferentially attached to the distal end of the attachment cables and the proximal end of the filter struts; andtreating the stenotic lesion wherein the core wire is rotated in a first direction to wrap the attachment cables, filter struts, and filter member around the core wire in the collapsed state and is rotated in a second or opposite direction to unwrap the attachment cables, filter struts, and filter member in the expanded state. - View Dependent Claims (11, 12)
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13. An assembly for removing emboli from a body vessel during the treatment of a stenotic lesion, the assembly comprising:
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an embolic protection device including a core wire, a plurality of attachment cables and filter struts, and a filter member being configured to move between an expanded state for engagement with the body vessel and a collapsed state for filter retrieval and delivery;
the filter member circumferentially attached to the attachment cables and filter struts;
the filter member extending freely from its proximal end to a closed distal end forming at least one annulus chamber in the expanded state; anda balloon catheter having a tubular body portion and an expandable balloon attached to and in fluid communication with the tubular body portion;
the balloon catheter facilitating delivery of the embolic protection device in the collapsed state to a position distal to the lesion in the body vessel;wherein the embolic protection device is configured in the expanded state to allow blood to flow therethrough and to capture emboli in the annulus chambers of the filter portion. wherein the core wire is rotated in a first direction to wrap the attachment cables, filter struts, and filter member around the core wire in the collapsed state and is rotated in a second or opposite direction to unwrap the attachment cables, filter struts, and filter member in the expanded state. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification