Embolic protection devices one way porous membrane
First Claim
1. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
- a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall of the filter element being capable of capturing embolic material while allowing fluid to flow from the interior volume to the exterior of the filter element; and
a flow control device mounted on the filter assembly in cooperation with the filter element, the flow control device configured to allow fluid to flow from the interior volume of the filter element through the filter element wall in a forward direction, but occluding the filter element wall to prevent flow in a backwards direction.
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Accused Products
Abstract
An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. The filtering assembly is capable of allowing controlled backwards flow of blood through the filter assembly, or blocking the backwards flow entirely, during aspiration of embolic material trapped within the filter assembly.
169 Citations
34 Claims
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1. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall of the filter element being capable of capturing embolic material while allowing fluid to flow from the interior volume to the exterior of the filter element; and
a flow control device mounted on the filter assembly in cooperation with the filter element, the flow control device configured to allow fluid to flow from the interior volume of the filter element through the filter element wall in a forward direction, but occluding the filter element wall to prevent flow in a backwards direction. - View Dependent Claims (7, 8, 9, 10)
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2. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall of the filter element being capable of capturing embolic material while allowing fluid to flow from the interior volume to the exterior of the filter element; and
a flow control device mounted on the filtering assembly in cooperation with the filter element, the flow control device configured to allow fluid to flow from the interior volume of the filter element through the filter element wall in a forward direction, but preventing flow through the filter element wall in a backwards direction, wherein the filter element further includes an opening in the wall providing fluid communication between the interior volume of the filter element and the exterior of the filter element, and the flow control device comprises a one-way valve configured to occlude the opening to prevent flow through the filter element in a backwards direction. - View Dependent Claims (3, 4, 5, 6)
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11. An embolic protection device for capturing embolic debris released into a body vessel of a patient, comprising:
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a shaft member having distal and proximal ends;
a filtering assembly rotatably mounted on the shaft member, the filtering assembly including an expandable strut assembly and a filter element attached to the strut assembly for capturing embolic debris, the expandable strut assembly having a set of expandable struts, each strut having a first and second end, and a deployment member movable between a collapsed position and an expanded position, wherein the first ends of the set of struts each are attached to the deployment member at different locations along the deployment member and the set of expandable struts are movable between a collapsed position and an expanded position, the filter element being movable with the struts to the expanded position so that at least a portion thereof contacts the wall of the vessel to capture embolic debris released into the body vessel; and
a flow control device mounted on the filter assembly in cooperation with the filter element, the flow control device configured to allow fluid to flow through the filter element but occluding the filter element to prevent flow in a backwards direction. - View Dependent Claims (12, 13, 14, 15)
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16. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a filter element wall defining an interior volume of the filter element and an exterior of the filter element, the filter element wall having at least one opening sized to capture embolic material while allowing fluid to flow from the interior volume of the filter element to the exterior of the filter element; and
a flow control device mounted on the filter assembly in cooperation with the filter element, the flow control device configured to allow fluid to flow from the interior volume of the filter element through the at least one opening in a forward direction, but occluding the at least one opening to prevent flow in a backwards direction. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall allowing fluid to flow from the interior volume to the exterior of the filter element while capturing embolic material contained within the fluid; and
a one-way valve mounted on the filter assembly in cooperation with the filter element, the one-way valve configured to allow fluid to flow from the interior volume of the filter element through the wall in a forward direction, but to occlude the wall to prevent fluid flow in a backwards direction.
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25. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element the wall allowing fluid to flow from the interior volume to the exterior of the filter element while capturing embolic material contained within the fluid; and
at least one flexible flap configured to cooperate with the wall to allow fluid to flow from the interior volume of the filter element through the wall in a forward direction and to occlude the wall to prevent flow in a backwards direction. - View Dependent Claims (26, 27)
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28. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall allowing fluid to flow from the interior volume to the exterior of the filter element while capturing embolic material contained within the fluid; and
at least one sleeve configured to cooperate with the wall to allow fluid to flow from the interior volume of the filter element through the wall in a forward direction and to occlude the wall to prevent flow in a backwards direction. - View Dependent Claims (29, 30, 31, 32)
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33. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element and an exterior of the filter element, the wall of the filter element having a capability to capture embolic material while allowing fluid to flow from the interior volume to the exterior of the filter element; and
means mounted on the filtering assembly in cooperation with the wall for allowing fluid to flow from the interior volume of the filter element through the wall in a forward direction and for occluding flow through the wall in a backwards direction.
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34. An embolic protection device for capturing embolic debris contained within a fluid flowing through a lumen of a vessel of a patient, comprising:
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a filtering assembly having a filter element having a wall defining an interior volume of the filter element an exterior of the filter element, the wall of the filter element having a capability to capture embolic material while allowing fluid to flow from the interior volume to the exterior of the filter element; and
means mounted on the filtering assembly in cooperation with the wall for allowing fluid to flow from the interior volume of the filter element through the wall in a forward direction and for allowing some limited flow through the wall in a backwards direction.
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Specification