Flexible and conformable embolic filtering devices
First Claim
1. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
- a guide wire having a proximal end and a distal end; and
an expandable filter assembly mounted near the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member adapted to move between a collapsed position and an expanded position, the proximal circumferential member including a plurality of bending regions formed therein, a distal circumferential member adapted to move between a collapsed position and an expanded position, the distal circumferential member including a plurality of bending regions formed therein, the proximal circumferential member being connected to the distal circumferential member, a proximal strut attached to the proximal circumferential member, a distal strut attached to the distal circumferential member, and a filter element attached to the self-expanding cage, wherein the bending regions of the proximal circumferential member are connected to and in phase with the bending regions of the distal circumferential member.
2 Assignments
0 Petitions
Accused Products
Abstract
A self-expanding cage for use in conjunction with an embolic filtering device includes one or more circumferential members adapted to expand from an unexpanded position to a expanded position within the patient'"'"'s body vessel. At least one proximal strut and at least one distal strut are attached to the circumferential member to form the basket. The circumferential member may include a plurality of bending regions which enhance the ability of the circumferential member to move between the unexpanded and expanded positions. The proximal and distal struts can be attached to one of the bending regions. When two or more circumferential members are utilized, each member may be connected by a connecting strut which may be connected at a bending region. The connecting strut can be a straight segment or may have a non-linear shape to provide additional flexibility. The expandable cage can be mounted to a elongated member, such as a guide wire, and can be either permanently mounted or rotatably mounted thereto.
837 Citations
25 Claims
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1. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
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a guide wire having a proximal end and a distal end; and an expandable filter assembly mounted near the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member adapted to move between a collapsed position and an expanded position, the proximal circumferential member including a plurality of bending regions formed therein, a distal circumferential member adapted to move between a collapsed position and an expanded position, the distal circumferential member including a plurality of bending regions formed therein, the proximal circumferential member being connected to the distal circumferential member, a proximal strut attached to the proximal circumferential member, a distal strut attached to the distal circumferential member, and a filter element attached to the self-expanding cage, wherein the bending regions of the proximal circumferential member are connected to and in phase with the bending regions of the distal circumferential member. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
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a guide wire having a proximal end and a distal end; and an expandable filter assembly mounted near the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member adapted to move between a collapsed position and an expanded position, the proximal circumferential member including a plurality of bending regions formed therein, a distal circumferential member adapted to move between a collapsed position and an expanded position, the distal circumferential member including a plurality of bending regions formed therein, the proximal circumferential member being connected to the distal circumferential member, a plurality of proximal struts attached to the proximal circumferential member, a plurality of distal struts attached to the distal circumferential member, and a filter element attached to the self-expanding cage, wherein the bending regions of the proximal circumferential member are connected to and in phase with the bending regions of the distal circumferential member. - View Dependent Claims (8, 9, 10, 11)
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12. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
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a guide wire having a proximal end and a distal end; and an expandable filter assembly rotatably attached to the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member having a plurality of bending regions formed therein, a distal circumferential member having a plurality of bending regions formed therein, the proximal circumferential member being connected to the distal circumferential member, and a filter element attached to the self-expanding cage, wherein the bending regions of the proximal circumferential member are in phase with the bending regions of the distal circumferential member. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
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a guide wire having a proximal end and a distal end; and an expandable filter assembly mounted near the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member with a plurality of proximal and distal bending regions formed therein, a distal circumferential member with a plurality of proximal and distal bending regions formed therein, the proximal and distal circumferential members being movable between a collapsed position and an expanded position, a proximal strut attached to each of the proximal bending regions of the proximal circumferential member, and a filter element attached to the self-expanding cage, wherein the proximal bending regions of the proximal and distal circumferential members are connected together wherein the bending regions of the proximal circumferential member are in phase with the bending region of the distal circumferential member and the distal bending regions of the proximal and distal circumferential members are connected together. - View Dependent Claims (20, 21, 22)
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23. An embolic filtering device used to capture embolic debris in a body vessel, comprising:
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a guide wire having a proximal end and a distal end; and an expandable filter assembly mounted near the distal end of the guide wire, the filter assembly including a self-expanding cage having a proximal circumferential member with a plurality of proximal U-shaped bending regions and a plurality of distal U-shaped bending regions formed therein, a distal circumferential member with a plurality of proximal U-shaped bending regions and a plurality of distal U-shaped bending regions formed therein, the proximal and distal circumferential members being movable between an collapsed position and an expanded position, and a filter element attached to the self-expanding cage, wherein the proximal U-shaped bending regions of the proximal and distal circumferential members are connected together and in phase with each other. - View Dependent Claims (24, 25)
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Specification