Embolic protection device having a filter
First Claim
1. An embolic protection device for capturing emboli during treatment of a stenotic lesion in a body vessel, the device comprising:
- a filter comprising a plurality of struts having first ends attached together at a center portion along a longitudinal axis, each strut having an arcuate segment extending from the first end to a second end, the struts being configured to move between an expanded state for engaging with the body vessel and a collapsed state for filter retrieval or delivery; and
a filter portion circumferentially attached to the filter at each of the second ends, the filter portion being configured for allowing blood to flow therethrough and for capturing emboli when the filter is in the expanded state.
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Accused Products
Abstract
An embolic protection device for capturing emboli during treatment of a stenotic lesion in a body vessel is disclosed. In one example, the device comprises a filter and a filter portion made of an extracellular matrix circumferentially attached to the filter. The filter comprises a plurality of struts having first ends attached together at a center portion along a longitudinal axis. Each strut has an arcuate segment extending from the first end to a second end. The struts are configured to move between an expanded state for engaging with the body vessel and a collapsed state for filter retrieval or delivery. The filter portion is configured for allowing blood to flow therethrough and for capturing emboli when the filter is in the expanded state.
154 Citations
18 Claims
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1. An embolic protection device for capturing emboli during treatment of a stenotic lesion in a body vessel, the device comprising:
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a filter comprising a plurality of struts having first ends attached together at a center portion along a longitudinal axis, each strut having an arcuate segment extending from the first end to a second end, the struts being configured to move between an expanded state for engaging with the body vessel and a collapsed state for filter retrieval or delivery; and
a filter portion circumferentially attached to the filter at each of the second ends, the filter portion being configured for allowing blood to flow therethrough and for capturing emboli when the filter is in the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An embolic protection assembly for capturing emboli during treatment of a stenotic lesion in a body vessel, the assembly comprising:
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a balloon catheter having a tubular body portion and an expandable balloon attached to and in fluid communication with the tubular body portion for angioplasty at the stenotic lesion, the expandable balloon having distal and proximal portions; and
an emboli protection device coaxially disposed within the balloon catheter during treatment of the stenotic lesion in the body vessel, the device comprising;
a filter comprising a plurality of struts having first ends attached to each other at a center point along a longitudinal axis, each strut having an arcuate segment extending from the first end to a second end, the struts being configured to move between an expanded state for engaging with the body vessel and a collapsed state for filter retrieval or delivery; and
filter portion circumferentially attached to the filter at each of the second ends, the filter portion being configured for allowing blood to flow therethrough and for capturing emboli when the filter is in the expanded state. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for embolic protection during treatment of a stenotic lesion in a body vessel, the method comprising:
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percutaneously introducing a balloon catheter in a body vessel, the balloon catheter having a tubular body portion and an expandable balloon attached to and in fluid communication with the tubular body portion for angioplasty at the stenotic lesion;
disposing an embolic protection device in an undeployed state coaxially within the balloon catheter, the device comprising;
a filter comprising a plurality of struts having first ends attached to each other at a center point along a longitudinal axis, each strut having an arcuate segment extending from the first end to a second end, the struts being configured to move between an expanded state for engaging with the body vessel and a collapsed state for filter retrieval or delivery;
a filter portion circumferentially attached to the filter at each of the second ends, the filter portion being configured for allowing blood to flow therethrough and for capturing emboli when the filter is in the expanded state; and
deploying the device in a deployed state downstream from the stenotic lesion to capture emboli during treatment of the stenotic lesion.
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Specification