Embolic protection devices having radiopaque elements
First Claim
1. A device comprising:
- a filter element comprising a mesh including a filament, the filter element being configured to expand from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element defines a cavity including a proximal facing opening in the expanded configuration;
a bead of radiopaque material attached to the filament of the mesh;
an elongate support member;
a proximal marker disposed on the elongate support member and slideable with respect to the elongate support member; and
a distal marker disposed on the elongate support member and slideable with respect to the elongate support member, wherein the mesh of the filter is attached to the proximal and distal markers,wherein the elongate support member comprises a stop between the proximal and distal markers that limits the movement of proximal and distal markers.
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Accused Products
Abstract
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 being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member, 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 wherein the proximal portion of the filter element comprises a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.
90 Citations
21 Claims
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1. A device comprising:
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a filter element comprising a mesh including a filament, the filter element being configured to expand from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element defines a cavity including a proximal facing opening in the expanded configuration; a bead of radiopaque material attached to the filament of the mesh; an elongate support member; a proximal marker disposed on the elongate support member and slideable with respect to the elongate support member; and a distal marker disposed on the elongate support member and slideable with respect to the elongate support member, wherein the mesh of the filter is attached to the proximal and distal markers, wherein the elongate support member comprises a stop between the proximal and distal markers that limits the movement of proximal and distal markers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device comprising:
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a filter element comprising a mesh including a plurality of filaments braided together, the filter element being configured to expand from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element defines a cavity including a proximal facing opening in the expanded configuration; a plurality of beads of radiopaque material, each bead being threaded onto one or more filaments of the mesh and incorporated into the mesh; and an elongate support member, the filter element being carried on a portion of the elongate support member. - View Dependent Claims (13, 14)
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15. A method comprising:
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forming a filter element comprising a mesh including a filament, the filter element being configured to expand from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element defines a cavity including a proximal facing opening in the expanded configuration; and attaching a bead of radiopaque material to the filament of the mesh, wherein the mesh of the filter element is configured to be attached to proximal and distal markers each disposed on an elongate support member and slideable with respect to the elongate support member, the elongate support member comprising a stop between the proximal and distal markers configured to limit the movement of proximal and distal markers. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification