IVC filter with translating hooks
First Claim
1. A filter, comprising:
- a body including a plurality of strut members disposed about a central axis to define an outer perimeter, each of the strut members including a first strut and a second strut, the body having a first outer perimeter in a first configuration and a second outer perimeter larger than the first outer perimeter in a second configuration; and
a hook disposed between the first and second struts of at least one of the strut members, the hook having a first elongate member connected to a second elongate member to define a tip, the first elongate member having an end portion coupled to the first strut and the second elongate member having an end portion coupled to the second strut so that in the first configuration, the tip is oriented toward the central axis in a first direction, and in the second configuration, the tip is oriented away from the central axis in a second direction.
1 Assignment
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Accused Products
Abstract
A filter with translating hooks is described. The filter can include strut members having first and second struts connected by a connecting portion. A translating hook is disposed adjacent the connecting portion of the strut members, the hook including a first elongate member attached at one end to the first strut and a second elongate member attached at one end to a second strut, the opposite ends of the elongate members connected together to define a tip. The translating hooks are configured to bend toward a central axis of the filter when the filter is in a collapsed configuration for delivery to a blood vessel and recovery from a blood vessel, and away from the central axis of the filter when the filter is in an expanded configuration within a blood vessel such that the hooks engage a vessel wall.
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Citations
32 Claims
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1. A filter, comprising:
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a body including a plurality of strut members disposed about a central axis to define an outer perimeter, each of the strut members including a first strut and a second strut, the body having a first outer perimeter in a first configuration and a second outer perimeter larger than the first outer perimeter in a second configuration; and a hook disposed between the first and second struts of at least one of the strut members, the hook having a first elongate member connected to a second elongate member to define a tip, the first elongate member having an end portion coupled to the first strut and the second elongate member having an end portion coupled to the second strut so that in the first configuration, the tip is oriented toward the central axis in a first direction, and in the second configuration, the tip is oriented away from the central axis in a second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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- 21. A filter, comprising a body having a plurality of struts, each strut having a proximal end connected to a head and a distal end, with adjacent struts connected at their distal end by a connecting portion such that the body includes a plurality of distal connecting portions, and at least one of the plurality of distal connecting portions including a hook having an apex formed by the joining of a first elongate member and a second elongate member, the first elongate member attached to a first of said adjacent struts and the second elongate member attached to a second of said adjacent struts, wherein the apex of the hook is configured to extend away from a central axis of the body when the filter is in an expanded configuration.
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29. A method of anchoring and recovering a filter in a blood vessel, comprising:
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introducing the filter into a blood vessel, the filter comprising at least one hook including first and second portions that are joined together at one end thereof to form a tip and that are attached respectively to different portions of a filter body at an opposite end thereof, and expanding the first and second portions to direct the tip of the hook away from a central axis defined by the filter body such that the tip of the hook engages a wall of the blood vessel. - View Dependent Claims (30, 31, 32)
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Specification