US5968059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmyocardial revascularization catheter and method
Assignee: Boston Scientific Scimed Inc
•
Filing: 1997-03-06
•
Granted: 1999-10-19
•
Expires: 2017-03-06
Abstract
Abstract A transmyocardial revascularization catheter which includes an elongate drive shaft having a proximal end, a distal end and a longitudinal axis. The TMR catheter also includes a cutting tip disposed at the distal end of the shaft. The tip has a distally disposed cutting edge and a longitudinally extending lumen therethrough. A motor is coupled to the drive shaft for rotation of the cutting tip. The shaft defines a longitudinally extending lumen in fluid communication with the tip lumen.
Inventors
- 👤 Louis Ellis
- 👤 Gary L. Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:36
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00292; A61B2017/003; A61B17/22; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B18/00; A61B2018/00053; A61B2018/00184; A61B2018/00202; A61B2018/00208; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B18/18; A61B18/1815; A61B2018/1861
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
A method of performing transmyocardial revascularization, comprising the steps of: providing a transmyocardial revascularization catheter including an elongate drive shaft having a proximal end, a distal end and a longitudinal axis; a cutting tip disposed at the distal end of the shaft, the tip having a distally disposed cutting edge and longitudinally extending lumen therethrough; and a motor coupled to the drive shaft for rotation of the cutting tip; advancing the cutting edge of the tip into engagement with the heart wall; rotating the tip; and advancing the tip into the myocardium of the heart.
Claim 2
Independent Claim
95 words
A method of performing transmyocardial revascularization, comprising the steps of: providing a transmyocardial revascularization catheter including an elongate drive shaft having a proximal end, a distal end and a longitudinal axis; a cutting tip disposed at the distal end of the shaft, the tip having a distally disposed cutting edge and longitudinally extending lumen therethrough; and a motor coupled to the drive shaft for rotation of the cutting tip; advancing the cutting edge of the tip into engagement with the heart wall; rotating the tip; and advancing the tip into the myocardium of the heart.
Claim 3
Dependent Claim
28 words
The method of performing transmyocardial revascularization in accordance with claim 1, wherein the shaft of the catheter defines a longitudinal lumen in fluid communication with the tip lumen.
Claim 4
Dependent Claim
22 words
The method of performing transmyocardial revascularization in accordance with claim 2, further comprising the step of infusing a dye through the lumens.
Claim 5
Dependent Claim
22 words
The method of performing transmyocardial revascularization in accordance with claim 2, further comprising the step of infusing a drug through the lumens.
Claim 6
Dependent Claim
21 words
The method of performing transmyocardial revascularization in accordance with claim 2, further comprising the step of aspirating fluid through the lumens.
References Cited (Backward Citations)
US4790311A
Cited
US4896671A
Cited
US5047026A
Cited
US5364393A
Cited
US5700259A
Cited
US5093877A
Cited
US5389096A
Cited
US5380316A
Cited
US5697882A
Cited
US5683366A
Cited
US5358485A
Cited
US5607405A
Cited
US5620414A
Cited
US5370675A
Cited
US5403311A
Cited
US5522815A
Cited
US5681308A
Cited
US5593405A
Cited
US5591159A
Cited
WO1996035469A1
Cited
WO1996039963A1
Cited
US5672174A
Cited
DE19537084A1
Cited
WO1997029803A1
Cited
US5713894A
Cited
WO1997032551A1
Cited
US5725523A
Cited
US5725521A
Cited
WO1997044071A1
Cited
DE29609350U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-18 | 2003-04-19 | 2003-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-18 | 2007-04-19 | 2007-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-18 | 2011-04-19 | 2011-10-19 | $7700.00 | Window Closed / Lapsed |