US6596005B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable ablation burr
Assignee: Boston Scientific Scimed Inc
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Filing: 2000-09-26
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Granted: 2003-07-22
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Expires: 2020-09-26
Abstract
Abstract A catheter including an elongate drive shaft having a proximal end and a distal end, an ablation burr disposed at the distal end expandable between a first position and a second position, wherein in the second position has a greater transverse dimension than in the first position. The catheter of the present invention can include a mechanism for positioning the burr eccentrically within a vessel lumen. In this context, expansion means that the burr can ablate a lumen having a larger diameter than the diameter of the lumen of the guide catheter to which the device is advanced.
Inventors
- 👤 Bill Kanz
- 👤 Denise Drummond
- 👤 Robert Barry
- 👤 Paul A. Hirst
- 👤 Mark Wyzgala
- 👤 Gary Swinford
- 👤 Edward Wulfman
- 👤 Tom Clement
- 👤 Tom Kadavy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/320725; A61B17/00234; A61B2017/00292; A61B2017/003; A61B2017/00535; A61B2017/00557; A61B2017/00831; A61B2017/00867; A61B2017/320004; A61B2017/320733; A61B2017/320766
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
A catheter assembly, comprising: an elongate shaft having a proximal end and a distal end, the shaft defining a lumen; an elongate drive shaft extending through the lumen, the drive shaft having a proximal end and a distal end; a burr disposed at the distal end of the drive shaft; a bushing disposed around the drive shaft proximate the burr that engages the burr and directs the burr within a vessel, and a steering line having a proximal end and a distal end, the distal end being connected to the bushing.
Claim 2
Dependent Claim
91 words
A catheter assembly, comprising: an elongate shaft having a proximal end and a distal end, the shaft defining a lumen; an elongate drive shaft extending through the lumen, the drive shaft having a proximal end and a distal end; a burr disposed at the distal end of the drive shaft; a bushing disposed around the drive shaft proximate the burr that engages the burr and directs the burr within a vessel, and a steering line having a proximal end and a distal end, the distal end being connected to the bushing.
Claim 3
Dependent Claim
15 words
A catheter assembly in accordance with claim 1 , further comprising a second steering line.
Claim 4
Dependent Claim
16 words
The catheter assembly in accordance with claim 1 , wherein the burr includes an abrasive surface.
Claim 5
Dependent Claim
16 words
The catheter assembly of claim 1 , wherein the bushing and the burr are rotatably coupled.
Claim 6
Independent Claim
101 words
A method of removing deposits from a vascular lumen, comprising: inserting a catheter having a proximal end, a distal end, and one or more lumens extending therethrough into a vascular lumen; inserting an atherectomy device through a lumen in the catheter, the atherectomy device having a tissue removal burr, a driveshaft that rotates the tissue removal burr, and a bushing that is proximal to the tissue removal burr; and urging the bushing against the tissue removal burr as the burr is being rotated by the drive shaft to deflect the burr and selectively engage and remove deposits in the vascular lumen.
Claim 7
Independent Claim
101 words
A method of removing deposits from a vascular lumen, comprising: inserting a catheter having a proximal end, a distal end, and one or more lumens extending therethrough into a vascular lumen; inserting an atherectomy device through a lumen in the catheter, the atherectomy device having a tissue removal burr, a driveshaft that rotates the tissue removal burr, and a bushing that is proximal to the tissue removal burr; and urging the bushing against the tissue removal burr as the burr is being rotated by the drive shaft to deflect the burr and selectively engage and remove deposits in the vascular lumen.
Claim 8
Dependent Claim
25 words
The method of claim 4 , wherein the bushing is urged against the burr by manipulating one or more steering wires coupled to the bushing.
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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) | 2006-07-21 | 2007-01-20 | 2007-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-07-21 | 2011-01-20 | 2011-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-07-21 | 2015-01-20 | 2015-07-22 | $7700.00 | Window Closed / Lapsed |