Expandable emboli filter and thrombectomy device
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Accused Products
Abstract
Expandable emboli filter and thrombectomy devices adapted for use with microcatheters to remove debris from blood vessels. The devices embody expanded profiles that span the entirety of various sized target vessels and thus are particularly effective in the engagement of debris found in vessels.
124 Citations
52 Claims
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1-32. -32. (canceled)
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33. An embolic filtering device for capturing embolic debris from the body fluid flowing in a body vessel, comprising:
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an elongate member having a distal end portion;
a loop extending from the distal end portion of the elongate member, the loop being movable between a pre-deployment collapsed position and a deployed expanded position in which the loop assumes a specific per-formed shape;
a filter coupled to the loop; and
a generally elongate microcatheter having an internal bore, the microcatheter adapted to receive the elongate member and at least a portion of the loop and filter within the internal bore. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An embolic filtering device for capturing embolic debris from the body fluid flowing in a body vessel, comprising:
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an elongate member having a distal end portion;
a loop coupled to the distal end portion of the elongate member, the loop being movable between a pre-deployment collapsed position and a deployed expanded position in which the loop assumes a specific per-formed shape;
a filter coupled to the loop; and
a microcatheter having an internal bore, the microcatheter adapted to receive the elongate member, loop and filter within the internal bore, the microcatheter having an small outer diameter which allows the microcatheter to remain in the body vessel while the filter device. - View Dependent Claims (46, 47, 48, 49, 50, 51)
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52. A method for capturing embolic debris in the body fluid flowing in a body vessel, comprising:
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providing a filtering device having an elongate member having a distal end portion, a loop extending from the distal end portion of the elongate member, the loop being movable between a pre-deployment collapsed position and a deployed expanded position in which the loop assumes a specific per-formed shape, a filter coupled to the loop and a generally elongate microcatheter having an internal bore, the microcatheter adapted to receive the elongate member and at least a portion of the loop and filter within the internal bore;
introducing the filtering device into the body vessel while the loop is restrained in the pre-deployment collapsed position;
placing the loop into the deployed expanded position;
filtering embolic debris from the body fluid flowing in the body vessel; and
moving the loop at least partial back into the pre-deployment collapsed position; and
removing the filtering device from the body lumen.
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Specification