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 Title: |
US6083220:
Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Guglielmi, Guido; Santa Monica, CA
Sepetka, Ivan; Redwood City, CA
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| Assignee: |
The Regents of the University of California, Oakland, CA
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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| Published / Filed: |
2000-07-04
/ 1996-05-09
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| Application Number: |
US1996000647114
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| IPC Code: |
Advanced:
A61B 17/12;
A61B 18/14;
A61B 17/00;
A61B 18/12;
A61B 19/00;
Core:
more...
IPC-7:
A61B 17/00;
A61B 18/08;
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| ECLA Code: |
A61B17/12P; A61B18/14; A61B18/14V; A61M25/09;
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| U.S. Class: |
Current:
606/032;
606/041;
606/108;
606/191;
Original:
606/032;
606/041;
606/108;
606/191;
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| Field of Search: |
606/032,41,49,28,108,191,200
623/001,12
604/104
607/122
600/585
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| Priority Number: |
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| Abstract: |
An artery, vein, aneurysm, vascular malformation or arterial fistula is occluded through endovascular occlusion by the endovascular insertion of a platinum wire and/or tip into the vascular cavity. The vascular cavity is packed with the tip to obstruct blood flow or access of blood in the cavity such that the blood clots in the cavity and an occlusion if formed. The tip may be elongate and flexible so that it packs the cavity by being folded upon itself a multiple number of times, or may pack the cavity by virtue of a filamentary or fuzzy structure of the tip. The tip is then separated from the wire mechanically or by electrolytic separation of the tip from the wire. The wire and the microcatheter are thereafter removed leaving the tip embedded in the thrombus formed within the vascular cavity. Movement of wire in the microcatheter is more easily tracked by providing a radioopaque proximal marker on the microcatheter and a corresponding indicator marker on the wire. Electrothrombosis is facilitate by placing the ground electrode on the distal end of the microcatheter and flowing current between the microcatheter electrode and the tip.
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| Attorney, Agent or Firm: |
Dawes, Daniel L. ;
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| Primary / Asst. Examiners: |
Cohen, Lee;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This application is a divisional of application Ser. No. 08/485,821 filed Jun. 6, 1995, now abandoned, which in turn was a continuation of application Ser. No. 840,211, filed on Feb. 24, 1992, now issued as U.S. Pat. No. 5,354,295 which in its turn was a continuation-in-part application of application Ser. No. 07/492,717, filed Mar. 13, 1990, issued as U.S. Pat. No. 5,122,136.
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| Family: |
Show 163 known family members
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First Claim:
Show all 10 claims |
We claim:
1. A wire for use in the formation of an occlusion within a vascular cavity in conjunction with a microcatheter having an interior lumen, said wire comprising:
- a metal coil having a first shape which conforms to said microcatheter lumen when within the microcatheter, and said metal coil forming an unbiased, regular cylindrical or unbiased single regular conical envelope when disposed out of said microcatheter.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 15 U.S. patent(s) that reference this one
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