US5871530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intracardiac defibrillation leads
Assignee: Medtronic Inc
•
Filing: 1998-04-17
•
Granted: 1999-02-16
•
Expires: 2018-04-17
Abstract
Abstract A lead and a lead system for dispersion of a cardioversion/defibrillation electrode formed of one or more small diameter defibrillation electrodes in a heart chamber and for attaching a pace/sense electrode in contact with the heart. The small diameter defibrillation electrode or electrodes extend distally from the distal end of the lead body. If multiple electrodes are employed, they are preferably biased to spread apart when unrestrained and have a cross-section size small enough to be inserted into interstices of trabeculae in the ventricular chamber. The distal ends of the defibrillation electrodes may be free of attachment to the lead body or may be attached by a weak bond to the distal portion of the lead.
Inventors
- 👤 Terrell M. Williams
- 👤 Peter M. J. Mulier
- 👤 John G. Keimel
- 👤 Timothy G. Laske
- 👤 Gregory A. Boser
- 👤 Mary M. Morris
- 👤 Xiaoyi Min
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:13
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0565; A61N1/0563
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
An implantable electrical lead, comprising: an elongated insulative lead body having a proximal end and a distal end and first and second longitudinally extending internal lumens, and having a first aperture opening the second lumen to an exterior surface of the lead body, proximal to distal end of the lead body; means for coupling the lead to an implanted cardioverter or defibrillator; a pacing electrode mounted to a distal portion of the lead body; a first conductor coupled to the pacing electrode, extending proximally in said first lumen to the coupling means; a second, coiled conductor comprising a continuous coil having first and second portions, the first portion having a first, smaller diameter and extending with the second lumen proximally from the first lateral aperture, the second portion having a second, larger diameter and extending distally from the lateral aperture, exterior to the lead body.
Claim 2
Dependent Claim
145 words
An implantable electrical lead, comprising: an elongated insulative lead body having a proximal end and a distal end and first and second longitudinally extending internal lumens, and having a first aperture opening the second lumen to an exterior surface of the lead body, proximal to distal end of the lead body; means for coupling the lead to an implanted cardioverter or defibrillator; a pacing electrode mounted to a distal portion of the lead body; a first conductor coupled to the pacing electrode, extending proximally in said first lumen to the coupling means; a second, coiled conductor comprising a continuous coil having first and second portions, the first portion having a first, smaller diameter and extending with the second lumen proximally from the first lateral aperture, the second portion having a second, larger diameter and extending distally from the lateral aperture, exterior to the lead body.
Claim 3
Dependent Claim
62 words
A lead according to claim 1 wherein the lead body has a second lateral aperture opening the second lumen to the exterior surface of the lead body at a point distal to the first aperture and wherein the second, coiled conductor has a third portion extending distally from the second portion and extending distally from the second aperture, within the second lumen.
Claim 4
Dependent Claim
21 words
A lead according to claim 1 or claim 2 wherein the second, larger diameter is no greater than about four French.
Claim 5
Dependent Claim
18 words
A lead according to claim 1 or claim 2 wherein the second, coiled conductor is a multi-filar coil.
Claim 6
Dependent Claim
111 words
An implantable electrical lead, comprising: an elongated insulative lead body having a proximal end and a distal end and a longitudinally extending internal lumen, and having a first aperture opening the lumen to an exterior surface of the lead body, proximal to distal end of the lead body; means for coupling the lead to an implanted cardioverter or defibrillator; a coiled conductor comprising a continuous coil having first and second portions, the first portion having a first, smaller diameter and extending with the second lumen proximally from the first lateral aperture, the second portion having a second, larger diameter and extending distally from the lateral aperture, exterior to the lead body.
Claim 7
Dependent Claim
111 words
An implantable electrical lead, comprising: an elongated insulative lead body having a proximal end and a distal end and a longitudinally extending internal lumen, and having a first aperture opening the lumen to an exterior surface of the lead body, proximal to distal end of the lead body; means for coupling the lead to an implanted cardioverter or defibrillator; a coiled conductor comprising a continuous coil having first and second portions, the first portion having a first, smaller diameter and extending with the second lumen proximally from the first lateral aperture, the second portion having a second, larger diameter and extending distally from the lateral aperture, exterior to the lead body.
Claim 8
Dependent Claim
60 words
A lead according to claim 5 wherein the lead body has a second lateral aperture opening the lumen to the exterior surface of the lead body at a point distal to the first aperture and wherein the second, coiled conductor has a third portion extending distally from the second portion and extending distally from the second aperture, within the lumen.
Claim 9
Dependent Claim
21 words
A lead according to claim 5 or claim 6 wherein the second, larger diameter is no greater than about four French.
Claim 10
Dependent Claim
18 words
A lead according to claim 5 or claim 6 wherein the second, coiled conductor is a multi-filar coil.
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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) | 2002-02-15 | 2002-08-17 | 2003-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-15 | 2006-08-17 | 2007-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-15 | 2010-08-17 | 2011-02-16 | $7700.00 | Window Closed / Lapsed |