Method of forming medical devices: intravascular occlusion devices
First Claim
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1. A method for filtering emboli from blood flowing through a body vessel during therapeutic treatment at a treatment site in the vessel comprising:
- introducing an introduction catheter into the vessel;
advancing an intravascular device carried adjacent a distal end of a guidewire through the vessel to a location distal to the treatment site while the intravascular device is contained within a lumen of the introduction catheter;
removing the introduction catheter from the vessel;
after the introduction catheter has been removed introducing the distal end of a treatment catheter into the vessel;
advancing the treatment catheter over the guidewire to the treatment site;
performing a therapeutic treatment at the treatment site, the therapeutic treatment including urging a stenosis radially outwardly to squeeze the stenosis against a wall of the vessel;
filtering emboli released into blood during the therapeutic treatment with the intravascular device;
after the therapeutic treatment has been performed introducing the distal end of a retrieval catheter into the vessel;
advancing the retrieval catheter over the guidewire to retrieve the intravascular device; and
removing the retrieval catheter, guidewire and intravascular device from the vessel.
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Abstract
Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
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Citations
42 Claims
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1. A method for filtering emboli from blood flowing through a body vessel during therapeutic treatment at a treatment site in the vessel comprising:
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introducing an introduction catheter into the vessel; advancing an intravascular device carried adjacent a distal end of a guidewire through the vessel to a location distal to the treatment site while the intravascular device is contained within a lumen of the introduction catheter; removing the introduction catheter from the vessel; after the introduction catheter has been removed introducing the distal end of a treatment catheter into the vessel; advancing the treatment catheter over the guidewire to the treatment site; performing a therapeutic treatment at the treatment site, the therapeutic treatment including urging a stenosis radially outwardly to squeeze the stenosis against a wall of the vessel; filtering emboli released into blood during the therapeutic treatment with the intravascular device; after the therapeutic treatment has been performed introducing the distal end of a retrieval catheter into the vessel; advancing the retrieval catheter over the guidewire to retrieve the intravascular device; and removing the retrieval catheter, guidewire and intravascular device from the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of protecting a patient from embolization during therapeutic treatment at a treatment site in the vessel comprising:
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introducing a guidewire into the vessel; advancing the guidewire through the vessel to position a distal end of the guidewire at a location distal to the treatment site; introducing an elongate introduction member into the vessel; advancing the elongate introduction member through the vessel to position a distal end of the elongate introduction member at a location distal to the treatment site; removing the elongate introduction member from the vessel; after the elongate introduction member has been removed introducing the distal end of a treatment catheter into the vessel; advancing the treatment catheter over the guidewire to the treatment site; performing a therapeutic treatment at the treatment site with the treatment catheter; preventing distal movement of emboli released into the blood during the therapeutic treatment beyond the distal end of the guidewire; removing the treatment catheter from the vessel; after the treatment catheter has been removed introducing the distal end of a retrieval member into the vessel; advancing the retrieval member over the guidewire to retrieve the emboli; and removing the retrieval member, guidewire and emboli from the vessel. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification