US5376103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode system for implantable defibrillator
Assignee: Sorin CRM SAS
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Filing: 1992-03-19
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Granted: 1994-12-27
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Expires: 2012-03-19
Abstract
Abstract A defibrillator pulse generator for pectoral implant utilizing the metal case as an electrode and operative to supply unique patterns of monophasic, biphasic, or pairs of electrical pulses to the connected electrodes.
Inventors
- 👤 Kenneth M. Anderson
- 👤 Theodore P. Adams
- 👤 Charles G. Supino
- 👤 Mark W. Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3956; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563; A61N1/3918
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
66 words
A method of operating a defibrillating system comprising: a. providing a right-ventricular-apex (RVA) electrode, a superior-vena-cava (SVA) electrode, a pulse-generator case (CAN) electrode, and a subcutaneous patch (SUB) electrode; and, b. simultaneously exciting the RVA, SVC, CAN and SUB electrodes according to one of the following pulse-polarity options: -+++, -+--, +---, +-++; where plus and minus signs indicate relative polarities of the respective electrodes during discharge.
Claim 2
Independent Claim
66 words
A method of operating a defibrillating system comprising: a. providing a right-ventricular-apex (RVA) electrode, a superior-vena-cava (SVA) electrode, a pulse-generator case (CAN) electrode, and a subcutaneous patch (SUB) electrode; and, b. simultaneously exciting the RVA, SVC, CAN and SUB electrodes according to one of the following pulse-polarity options: -+++, -+--, +---, +-++; where plus and minus signs indicate relative polarities of the respective electrodes during discharge.
Claim 3
Dependent Claim
24 words
The method according to claim 1 wherein the selected one of the pulse polarity options applies to an initial phase of a biphasic waveform.
Claim 4
Dependent Claim
35 words
The method according to claim 1 wherein the pulse-polarity options for excitation of the electrodes additionally include 0-++ and 0+--, where the zero symbol means that an electrical circuit to the corresponding electrode is open.
Claim 5
Dependent Claim
51 words
The method according to claim 1 wherein the pulse polarity option is for a first pulse of at least two closely spaced sequential pulses and the pulse-polarity options for a second pulse excludes the pulse-polarity option identical to the first pulse and also the pulse-polarity option reversed from the first pulse.
Claim 6
Dependent Claim
69 words
A defibrillating pulse generator comprising: a. connection for a right-ventricular-apex (RVA) electrode, a superior-vena-cava (SVA) electrode, a pulse-generator case (CAN) electrode, and a subcutaneous patch (SUB) electrode; and, b. pulse-generating means for simultaneous excitation of the RVA, SVC, CAN and SUB electrodes according to one of the following pulse polarity options: -+++, -+--, +---, +-++; where plus and minus signs indicate relative polarities of the respective electrodes during discharge.
Claim 7
Dependent Claim
69 words
A defibrillating pulse generator comprising: a. connection for a right-ventricular-apex (RVA) electrode, a superior-vena-cava (SVA) electrode, a pulse-generator case (CAN) electrode, and a subcutaneous patch (SUB) electrode; and, b. pulse-generating means for simultaneous excitation of the RVA, SVC, CAN and SUB electrodes according to one of the following pulse polarity options: -+++, -+--, +---, +-++; where plus and minus signs indicate relative polarities of the respective electrodes during discharge.
Claim 8
Dependent Claim
33 words
The defibrillating pulse generator according to claim 5 wherein the CAN electrode is formed from a metallic housing of the defibrillating pulse generator, and the housing is partially coated with an insulating material.
Claim 9
Dependent Claim
26 words
The defibrillafing pulse generator according to claim 6 wherein the insulating material extends over an exterior of the housing to leave only one major surface exposed.
Claim 10
Dependent Claim
26 words
The defibrillating pulse generator according to claim 6 wherein the insulating material extends over an exterior of the housing to leave more than one surface exposed.
Claim 11
Dependent Claim
37 words
The defibrillating pulse generator according to claim 5 wherein the pulse-generating means further comprises means for generating a biphasic waveform and the selected one of the pulse-polarity options applies to an initial phase of the biphasic waveform.
Claim 12
Dependent Claim
22 words
The defibrillating pulse generator according to claim 5 wherein the pulse-polarity options for excitation of the electrodes additionally include: 0-++ and 0+--.
Claim 13
Dependent Claim
21 words
The defibrillating pulse generator according to claim 7 further including selector switch means for disabling the pulse-generating housing as an electrode.
Claim 14
Dependent Claim
53 words
The defibrillating pulse generator according to claim 5 wherein the pulse polarity option is for a first pulse of at least two closely spaced sequential pulses and the pulse-polarity options for a second pulse excludes the pulse-polarity option identical to the first pulse and also the pulse-polarity option reversed from the first pulse.
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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) | 1997-12-26 | 1998-06-27 | 1998-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-26 | 2002-06-27 | 2002-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-26 | 2006-06-27 | 2006-12-27 | $7700.00 | Window Closed / Lapsed |