Patent US5342414A successfully refreshed from Google Patents.
US5342414A
Expired / Lapsed
US
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Transvenous defibrillation lead
Assignee: DUTHLER REED A
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Filing: 1993-07-01
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Granted: 1994-08-30
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Expires: 2013-07-01
Abstract
Abstract A defibrillation lead provided with an elongated defibrillation electrode and a bipolar electrode pair for cardiac pacing and sensing. The cardiac pacing and sensing electrodes comprise an extendable helical electrode and a ring or ring tip electrode located on or adjacent the distal end of the lead body. Inter-electrode separation for pacing and sensing is provided by means of insulation applied to the helical electrode, leaving only the tip portion exposed. The overall configuration of the lead allows the defibrillation electrode to be located very close to the distal end of the lead body, while preserving the ability to employ a bipolar electrode pair for cardiac pacing and sensing.
Inventors
- 👤 Rahul Mehra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:47
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
An implantable defibrillation lead, comprising: an elongated lead body having a proximal end and a distal end; first, second and third mutually insulated conductors located within said lead body; first, second and third electrical connectors, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having proximal and a distal end, mounted to said lead body such that the distal end of said defibrillation electrode is located about one centimeter or less from the distal end of said lead body; and first and second sensing electrodes, mounted to said lead body, distal to the distal end of said defibrillation electrode; and having an interelectrode spacing of about 0.5 centimeter; wherein said first sensing electrode comprises a helical electrode extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point distal to the distal end of said lead body, and wherein said second sensing electrode comprises an electrode mounted to the distal end of said lead body, distal to the distal end of said defibrillation electrode.
Claim 2
Dependent Claim
182 words
An implantable defibrillation lead, comprising: an elongated lead body having a proximal end and a distal end; first, second and third mutually insulated conductors located within said lead body; first, second and third electrical connectors, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having proximal and a distal end, mounted to said lead body such that the distal end of said defibrillation electrode is located about one centimeter or less from the distal end of said lead body; and first and second sensing electrodes, mounted to said lead body, distal to the distal end of said defibrillation electrode; and having an interelectrode spacing of about 0.5 centimeter; wherein said first sensing electrode comprises a helical electrode extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point distal to the distal end of said lead body, and wherein said second sensing electrode comprises an electrode mounted to the distal end of said lead body, distal to the distal end of said defibrillation electrode.
Claim 3
Dependent Claim
30 words
A lead according to claim 1 wherein said helical electrode is provided with an insulative coating extending to a point about one-half centimeter or greater from said second sensing electrode.
Claim 4
Dependent Claim
149 words
A transvenous defibrillation lead, comprising: an elongated lead body; first, second and third mutually insulated conductors located within said elongated lead body; first, second and third electrical connectors mounted to said lead body, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having a proximal end and a distal end and coupled to said first conductor, said distal end of said defibrillation electrode located adjacent the distal end of said lead body; a first sensing electrode, coupled to said second conductor and located adjacent the distal end of said lead body, distal to the distal end of said defibrillation electrode; and a helical electrode, coupled to said third conductor and extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point about 0.5 centimeters or greater from said first sensing electrode.
Claim 5
Dependent Claim
149 words
A transvenous defibrillation lead, comprising: an elongated lead body; first, second and third mutually insulated conductors located within said elongated lead body; first, second and third electrical connectors mounted to said lead body, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having a proximal end and a distal end and coupled to said first conductor, said distal end of said defibrillation electrode located adjacent the distal end of said lead body; a first sensing electrode, coupled to said second conductor and located adjacent the distal end of said lead body, distal to the distal end of said defibrillation electrode; and a helical electrode, coupled to said third conductor and extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point about 0.5 centimeters or greater from said first sensing electrode.
Claim 6
Dependent Claim
21 words
A lead according to claim 3 wherein said first sensing electrode is located at the distal end of said lead body.
Claim 7
Dependent Claim
148 words
A transvenous defibrillation lead, comprising: an elongated lead body having proximal and distal ends; first, second and third mutually insulated conductors located within said elongated lead body; first, second and third electrical connectors mounted to said lead body, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having a proximal end and a distal end and coupled to said first conductor, said distal end of said defibrillation electrode located within about 1 centimeter of the distal end of said lead body; a first sensing electrode, coupled to said second conductor and located at the distal end of said lead body; and a helical electrode, coupled to said third conductor and extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point distal to the distal end of said lead body.
Claim 8
Dependent Claim
148 words
A transvenous defibrillation lead, comprising: an elongated lead body having proximal and distal ends; first, second and third mutually insulated conductors located within said elongated lead body; first, second and third electrical connectors mounted to said lead body, each coupled to one of said first, second and third mutually insulated conductors; an elongated defibrillation electrode having a proximal end and a distal end and coupled to said first conductor, said distal end of said defibrillation electrode located within about 1 centimeter of the distal end of said lead body; a first sensing electrode, coupled to said second conductor and located at the distal end of said lead body; and a helical electrode, coupled to said third conductor and extending from the distal end of said lead body, said helical electrode provided with an insulative coating extending to a point distal to the distal end of said lead body.
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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) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |