Embolic protection devices having radiopaque elements
First Claim
1. 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, the filter element comprising a mesh, andan 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, the proximal facing opening having a perimeter,wherein the proximal portion of the filter element comprises a radiopaque element in the form of a single discontinuous loop having first and second ends, the single discontinuous loop extending around a portion of the perimeter of the proximal facing opening, the single discontinuous loop having a gap and the gap being proximate to the elongate support member, the single discontinuous loop being sized and positioned such that a first portion of the gap extends along the perimeter between the elongate support member and the first end of the single discontinuous loop and a second portion of the gap extends along the perimeter between the elongate support member and the second end of the single discontinuous loop, the single discontinuous loop being disposed around 50 to 90 percent of the perimeter of the proximal facing opening, and the single discontinuous loop being directly attached only to the mesh,wherein the mesh of the filter element is directly attached to proximal and distal markers, each proximal and distal marker being disposed on the elongate support member and each proximal and distal marker being slidable with respect to the elongate support member and with respect to each other, andwherein the elongate support member comprises a single stop between the proximal and distal markers that limits the movement of the 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. The device including 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. 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 the proximal portion of the filter element includes 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.
80 Citations
33 Claims
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1. A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient'"'"'s body, comprising:
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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, the filter element comprising a mesh, 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, the proximal facing opening having a perimeter, wherein the proximal portion of the filter element comprises a radiopaque element in the form of a single discontinuous loop having first and second ends, the single discontinuous loop extending around a portion of the perimeter of the proximal facing opening, the single discontinuous loop having a gap and the gap being proximate to the elongate support member, the single discontinuous loop being sized and positioned such that a first portion of the gap extends along the perimeter between the elongate support member and the first end of the single discontinuous loop and a second portion of the gap extends along the perimeter between the elongate support member and the second end of the single discontinuous loop, the single discontinuous loop being disposed around 50 to 90 percent of the perimeter of the proximal facing opening, and the single discontinuous loop being directly attached only to the mesh, wherein the mesh of the filter element is directly attached to proximal and distal markers, each proximal and distal marker being disposed on the elongate support member and each proximal and distal marker being slidable with respect to the elongate support member and with respect to each other, and wherein the elongate support member comprises a single stop between the proximal and distal markers that limits the movement of the proximal and distal markers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of deploying a device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient'"'"'s body comprising:
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providing the device for filtering emboli, the device 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, the filter element comprising a mesh, 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, the proximal facing opening having a perimeter, wherein the proximal portion of the filter element comprises a radiopaque element in the form of a single discontinuous loop having first and second ends, the single discontinuous loop extending around a portion of the perimeter of the proximal facing opening, the single discontinuous loop having a gap and the gap being proximate to the elongate support member, the single discontinuous loop being sized and positioned such that a first portion of the gap extends along the perimeter between the elongate support member and the first end of the single discontinuous loop and a second portion of the gap extends along the perimeter between the elongate support member and the second end of the single discontinuous loop, the single discontinuous loop being disposed around 50 to 90 percent of the perimeter of the proximal facing opening, and the single discontinuous loop being directly attached only to the mesh, wherein the mesh of the filter element is directly attached to proximal and distal markers, each proximal and distal marker being disposed on the elongate support member and each proximal and distal marker being slidable with respect to the elongate support member and with respect to each other, and wherein the elongate support member comprises a single stop between the proximal and distal markers that limits the movement of the proximal and distal markers; delivering the device percutaneously to a region of interest in the lumen of the patient'"'"'s body; and using fluoroscopy to visualize the filter element in the lumen of the patient'"'"'s body.
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Specification