Embolic filters with a distal loop or no loop
First Claim
1. A device for filtering emboli from blood flowing through a lumen defined by walls of a vessel in a patient'"'"'s body, comprising:
- an elongate support member;
a filter element carried on and attached to the elongate support member, the filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element comprises a self-expanding filter mesh material having pores, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening; and
a self-expanding radial element associated with the filter element, wherein the self-expanding radial element is distal of the filter element, and the self-expanding radial element is adapted to maintain the filter element centered in the lumen, the filter element being attached to the self-expanding radial element by a sliding element positioned between the filter element and the self-expanding radial element, the sliding element being slidable in relation to the elongate support member.
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Accused Products
Abstract
The invention provides a device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient'"'"'s body, comprising a filter element and a self-expanding radial element associated with the filter element. The filter element is expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained. The filter element comprises a self-expanding material having pores. The filter element has proximal and distal portions and a central portion, and has a shape in the expanded configuration which defines a cavity having a proximal facing opening. The self-expanding radial element is distal of the filter element, and the self-expanding radial element is adapted to maintain the filter element centered in the lumen.
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Citations
22 Claims
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1. A device for filtering emboli from blood flowing through a lumen defined by walls of a vessel in a patient'"'"'s body, comprising:
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an elongate support member; a filter element carried on and attached to the elongate support member, the filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element comprises a self-expanding filter mesh material having pores, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening; and a self-expanding radial element associated with the filter element, wherein the self-expanding radial element is distal of the filter element, and the self-expanding radial element is adapted to maintain the filter element centered in the lumen, the filter element being attached to the self-expanding radial element by a sliding element positioned between the filter element and the self-expanding radial element, the sliding element being slidable in relation to the elongate support member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification