Support frame for an embolic protection device
First Claim
Patent Images
1. An embolic protection device comprising:
- a collapsible filter element for delivery through a vascular system of a patient;
the filter element comprising a collapsible filter body and a filter support for the filter body;
the filter body having an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body;
the filter support being movable between a collapsed position for movement through the vascular system, and an extended outwardly projecting position to support the filter body in an expanded position;
the filter support comprising a support frame comprising first and second wire segments, each said wire segment having a termination region;
wherein the termination region of the first wire segment extends generally parallel, and is fixedly attached along a length of the termination region, to the termination region of the second wire segment.
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Abstract
An embolic protection device comprises a collapsible filter body and a filter support for the filter body. The filter support comprises a support frame defined by at least two wire segments having terminations. The terminations of adjacent segments are fixed relative to one another and extend generally parallel in a bifilar manner for enhanced trackability and flexibility.
578 Citations
32 Claims
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1. An embolic protection device comprising:
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a collapsible filter element for delivery through a vascular system of a patient;
the filter element comprising a collapsible filter body and a filter support for the filter body;
the filter body having an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body;
the filter support being movable between a collapsed position for movement through the vascular system, and an extended outwardly projecting position to support the filter body in an expanded position;
the filter support comprising a support frame comprising first and second wire segments, each said wire segment having a termination region;
wherein the termination region of the first wire segment extends generally parallel, and is fixedly attached along a length of the termination region, to the termination region of the second wire segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 31, 32)
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- 29. A device as claimed in 27 wherein the first wire segment and the second wire segment are fixedly attached to the carrier along a portion of the length of the termination regions.
Specification