Support frame for an embolic protection device
First Claim
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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 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 defined by at least two wire segments having terminations.
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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.
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Citations
38 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 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 defined by at least two wire segments having terminations. - 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, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of collapsing an embolic protection device for delivery and/or retrieval of the device through a vascular system, the method comprising the steps of:
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providing an embolic protection device comprising a collapsible filter body and a filter support for the filter body; and
collapsing the filter support to a low-profile configuration with an associated torqueing of at least part of the filter support upon elongation of the filter support.
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Specification