Radiopaque distal embolic protection device
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Abstract
The present invention is a radiopaque distal embolic protection device for use in a lumen of a patient'"'"'s body, such as a blood vessel. The protection device has an expandable and retractable filter attached to a distal portion of a guidewire. At least a portion of the filter has a radiopaque coating for viewing under fluoroscopy during use. The radiopaque coating allows the operator to ensure that the periphery of the filter has fully engaged the wall of a blood vessel and to take appropriate measures in recovery of the protection device after capture of emboli and particulate matter.
139 Citations
61 Claims
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1-29. -29. (canceled)
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30. A method of using a radiopaque protection device comprising the steps of:
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a) advancing a protection device having a radiopaque filter to a predetermined position within a lumen;
b) expanding said radiopaque filter within said lumen; and
c) viewing said radiopaque filter under fluoroscopy to ensure said radiopaque filter engages said lumen.
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31-36. -36. (canceled)
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37. A method of performing a vascular procedure in a patent comprising:
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(a) providing an embolic protection device comprising an elongate member having a distal portion and a filter being expandable and collapsible about the distal portion, the filter comprising a multiplicity of filaments that form a mesh, the filaments comprising a metal, at least a portion of the mesh being radiopaque, and the filter having an open mouth;
(b) advancing the embolic protection device in a collapsed configuration through a lumen of the patient'"'"'s body to a treatment site;
(c) expanding the filter;
(d) performing a vascular procedure at the treatment site, wherein particulate matter is generated; and
(e) collecting the particulate matter in the filter. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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Specification