Patent US6579298B1 successfully refreshed from Google Patents.
US6579298B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating vein graft lesions
Assignee: Boston Scientific Scimed Inc
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Filing: 2000-02-29
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Granted: 2003-06-17
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Expires: 2020-02-29
Abstract
Abstract A system for ablating material in vein grafts includes an ablation burr that is rotated by a driveshaft. The ablation burr preferably includes one or more channels, blades or other mechanisms that direct ablated material and liquid proximally and/or outwardly against a vessel wall. Aspiration is used to remove ablated material and liquid from the treatment area. Finally, methods for treating vein grafts and original native arteries are disclosed.
Inventors
- 👤 Rodney J. Bruneau
- 👤 Robert L. Barry
- 👤 Tim J. Johnson
- 👤 Casey Torrance
- 👤 Dennis Werner
- 👤 Andy Uhrberg
- 👤 Matthew Hefner
- 👤 Zihong Guo
- 👤 Mark Wyzgala
- 👤 Robert Morey
- 👤 Natalya Peskin
- 👤 Brian T. Cran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/22; A61B17/221; A61B2017/00681; A61B2017/00685; A61B2017/22051; A61B2017/22065; A61B2017/22067; A61B2017/320004; A61F; A61F2/00; A61F2/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
An ablation burr for removing deposits from a patient's vessel, comprising: a burr body adapted to be rotated by a driveshaft, at least a portion of the burr body having an abrasive surface; the burr body further including a lumen extending at least partially through the burr body, a proximal and distal radially expanded portion and a middle region between the distal and proximal radially expanded portion having a diameter that is everywhere less than the diameter of the proximal and distal portion, the middle region further including an aspiration port in fluid communication with the lumen in the burr body.
Claim 2
Dependent Claim
101 words
An ablation burr for removing deposits from a patient's vessel, comprising: a burr body adapted to be rotated by a driveshaft, at least a portion of the burr body having an abrasive surface; the burr body further including a lumen extending at least partially through the burr body, a proximal and distal radially expanded portion and a middle region between the distal and proximal radially expanded portion having a diameter that is everywhere less than the diameter of the proximal and distal portion, the middle region further including an aspiration port in fluid communication with the lumen in the burr body.
Claim 3
Dependent Claim
18 words
The ablation burr of claim 1 , wherein the drive shaft that rotates the burr body is sealed.
Claim 4
Dependent Claim
30 words
The ablation burr of claim 1 , wherein the burr body creates a low pressure region adjacent to the aspiration port as the burr body is rotated in a vessel.
Claim 5
Independent Claim
121 words
A method of removing deposits from a vessel in a patient's body, comprising: advancing an ablation burr into a vessel, the burr having a burr body at least a portion of which has an abrasive outer surface, a lumen extending at least partially therethrough, a proximal and a distal radially expanded portion, a middle region between the proximal and distal radially expanded portion having a diameter that is everywhere less than the diameter of the proximal and distal radially expanded portion and an aspiration port within the middle region that is in fluid communication with the lumen; rotating the ablation burr with a driveshaft; engaging the rotating burr with deposits in the vessel; and aspirating ablated deposits through the aspiration port.
Claim 6
Independent Claim
121 words
A method of removing deposits from a vessel in a patient's body, comprising: advancing an ablation burr into a vessel, the burr having a burr body at least a portion of which has an abrasive outer surface, a lumen extending at least partially therethrough, a proximal and a distal radially expanded portion, a middle region between the proximal and distal radially expanded portion having a diameter that is everywhere less than the diameter of the proximal and distal radially expanded portion and an aspiration port within the middle region that is in fluid communication with the lumen; rotating the ablation burr with a driveshaft; engaging the rotating burr with deposits in the vessel; and aspirating ablated deposits through the aspiration port.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-16 | 2006-12-16 | 2007-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-16 | 2010-12-16 | 2011-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-16 | 2014-12-16 | 2015-06-17 | $7700.00 | Window Closed / Lapsed |