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US 7,442,200 B2Granted
Method of forming medical devices: intravascular occlusion devices
Assigneeev3 Inc.
InventorsRudy Mazzocchi, Timothy Claude, James Segermark
Life of this patent
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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.
Claims42
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.
8 more elements
A method of protecting a patient from embolization during therapeutic treatment at a treatment site in the vessel comprising:
- 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.
11 more elements
Dependencies are inferred from the claim text.