Invertible filter for embolic protection
First Claim
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1. A medical device for capturing emboli in a blood vessel, the medical device comprising:
- a guiding member including a lumen;
a filter portion having a tubular geometry, the tubular geometry having a first and second end, the filter portion extends distally from the guiding member and has a plurality of filter openings; and
wherein the filter portion is configured to evert forming a proximally facing concave geometry.
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Abstract
A medical device including a guiding member and a filter portion is disclosed. The guiding member includes a lumen configured to slidably engage the filter portion. The filter portion forms a tubular geometry that extends distally from the guiding member. The filter portion is configured to evert to form a proximally facing concave geometry for capturing emboli. Further, the filter portion includes filter openings that are sized to allow blood cells to pass therethrough while preventing the passage of emboli.
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Citations
20 Claims
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1. A medical device for capturing emboli in a blood vessel, the medical device comprising:
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a guiding member including a lumen;
a filter portion having a tubular geometry, the tubular geometry having a first and second end, the filter portion extends distally from the guiding member and has a plurality of filter openings; and
wherein the filter portion is configured to evert forming a proximally facing concave geometry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical device for capturing emboli in a blood vessel, the medical device comprising:
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a guiding member including a lumen;
a filter portion having a tubular geometry, the tubular geometry having a first and second end, the filter portion extending distally from the guiding member and having a plurality of filter openings;
a plurality of control wires attached to the filter portion; and
wherein the filter portion is configured to evert forming a proximally facing concave geometry, the filter portion including a plurality of elements interwoven such that the filter portion expands to circumferentially engage an inner wall of the blood vessel when everted, the plurality of elements defining the plurality of filter openings. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification