Patent US2523921A successfully refreshed from Google Patents.
Patent EP0373953A2 successfully refreshed from Google Patents.
EP0373953A2
Expired / Lapsed
EP
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Endocardial defibrillation electrode system
Assignee: Medtronic Inc
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Filing: 1989-12-15
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Granted: —
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Expires: 2009-12-15
Abstract
Abstract An endocardial defibrillation electrode system is provided, including a coronary sinus lead(112), a ventricular lead(106), and a subcutaneous p!ate (114). The coronary sinus lead includes an elongated electrode adapted for location in the coronary sinus, extending into the great vein, and terminating (115) in the vicinity of the left atrial appendage. The right ventricular electrode may be located either in the right ventricular apex (108), or may extend from the right ventricular apex to the vicinity of the tricuspid valve (107). The subcutaneous electrode preferably is a large surface electrode, adapted for implant in the vicinity of the heart. A variety of defibrillation pulse regimes are disclosed, optimized for use with the defibrillation electrode system, and with subgroupings of the disclosed electrodes.
Inventors
- 👤 Rahul Mehra
- 👤 Gust H. Bardy
- 👤 Terrell M. Williams
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 18:56
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3918; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563; A61N2001/0585
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
178 words
An apparatus for defibrillation of a patient's heart, comprising means for generating electrical defibrillation pulses and electrode means adapted to be implanted within said patient for delivery of said defibrillation pulses to said patient's heart, characterized in that: said electrode means includes a first elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart, a second elongate electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart, and a third, large surface electrode of such a shape and size as to be locatable subcutaneously at approximately the level of the ventricles of said patient's heart, and in that said means for generating defibrillation pulses comprises means for coupling two of said first, second and third electrodes to one another so that they are electrically common and means for applying a defibrillation pulse between said two of said first, second and third electrodes coupled to one another and the other of said first, second and third electrodes.
Claim 2
Independent Claim
178 words
An apparatus for defibrillation of a patient's heart, comprising means for generating electrical defibrillation pulses and electrode means adapted to be implanted within said patient for delivery of said defibrillation pulses to said patient's heart, characterized in that: said electrode means includes a first elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart, a second elongate electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart, and a third, large surface electrode of such a shape and size as to be locatable subcutaneously at approximately the level of the ventricles of said patient's heart, and in that said means for generating defibrillation pulses comprises means for coupling two of said first, second and third electrodes to one another so that they are electrically common and means for applying a defibrillation pulse between said two of said first, second and third electrodes coupled to one another and the other of said first, second and third electrodes.
Claim 3
Dependent Claim
18 words
Apparatus as claimed in claim 1 comprising means for coupling said first and second electrodes to one another.
Claim 4
Dependent Claim
18 words
Apparatus as claimed in claim 1 comprising means for coupling said first and third electrodes to one another.
Claim 5
Dependent Claim
18 words
Apparatus as claimed in claim 1 comprising means for coupling said second and third electrodes to one another.
Claim 6
Independent Claim
163 words
An apparatus for defibrillating a patient's heart, including a means for generating defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means includes a first elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart, an elongate second electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart and a third large surface electrode of such a shape and size as to be locatable subcutaneously at the level of the ventricles of said patient's heart, and in that said means for generating defibrillation pulses includes means for applying a defibrillation pulse first between a first pair of electrodes chosen from said first, second and third electrodes and subsequently between a second pair of electrodes including the other of said first, second and third electrodes.
Claim 7
Independent Claim
163 words
An apparatus for defibrillating a patient's heart, including a means for generating defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means includes a first elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart, an elongate second electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart and a third large surface electrode of such a shape and size as to be locatable subcutaneously at the level of the ventricles of said patient's heart, and in that said means for generating defibrillation pulses includes means for applying a defibrillation pulse first between a first pair of electrodes chosen from said first, second and third electrodes and subsequently between a second pair of electrodes including the other of said first, second and third electrodes.
Claim 8
Dependent Claim
44 words
Apparatus as claimed in claim 5 including means for applying a defibrillation pulse between said second electrode and one of said first and third electrodes and subsequently applying a defibrillation pulse between said second electrode and the other of said first and third electrodes.
Claim 9
Dependent Claim
26 words
Apparatus as claimed in claim 5 including means for sequentially applying defibrillation pulses between said first and second electrodes and between said first and third electrodes.
Claim 10
Dependent Claim
30 words
Apparatus as claimed in claim 5 including means for sequentially applying defibrillation pulses between said first electrode and said third electrode and between said second electrode and said third electrode.
Claim 11
Independent Claim
171 words
An apparatus for defibrillating a patient's heart, including means for generation of defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means comprises a first, elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart and to extend from approximately the apex of the right ventricle of said patient's heart to the tricuspid valve of said patient's heart and contained entirely within the right ventricle of said patient's heart, and a second electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart and to extend from a first point located within the coronary sinus of said patient's heart to a second point adjacent the left atrial appendage of said patient's heart, and wherein said means for generating defibrillation pulses comprises means for applying a defibrillation pulse between said first and second electrodes.
Claim 12
Independent Claim
171 words
An apparatus for defibrillating a patient's heart, including means for generation of defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means comprises a first, elongate electrode of such a shape and size as to be locatable in the right ventricle of said patient's heart and to extend from approximately the apex of the right ventricle of said patient's heart to the tricuspid valve of said patient's heart and contained entirely within the right ventricle of said patient's heart, and a second electrode of such a shape and size as to be locatable in the coronary sinus and great vein of said patient's heart and to extend from a first point located within the coronary sinus of said patient's heart to a second point adjacent the left atrial appendage of said patient's heart, and wherein said means for generating defibrillation pulses comprises means for applying a defibrillation pulse between said first and second electrodes.
Claim 13
Dependent Claim
146 words
Apparatus for defibrillating a patient's heart, comprising means for generating defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means comprises a first electrode adapted to be located in and limited to the area adjacent the apex of the right ventricle of said patient's heart, a second electrode adapted to be located within the great vein of said patient's heart, and a third electrode so shaped and positioned relative to the second electrode as to be locatable within the coronary sinus of said patient's heart, said first, second and third electrodes each being coupled to said means for generating defibrillation pulses by means of mutually insulated conductors, and wherein said pulse generating means comprises means for applying defibrillation pulses between selected pairs of said first, second and third electrodes.
Claim 14
Dependent Claim
146 words
Apparatus for defibrillating a patient's heart, comprising means for generating defibrillation pulses and electrode means adapted to be implanted within said patient for applying said defibrillation pulses to said patient's heart, characterized in that: said electrode means comprises a first electrode adapted to be located in and limited to the area adjacent the apex of the right ventricle of said patient's heart, a second electrode adapted to be located within the great vein of said patient's heart, and a third electrode so shaped and positioned relative to the second electrode as to be locatable within the coronary sinus of said patient's heart, said first, second and third electrodes each being coupled to said means for generating defibrillation pulses by means of mutually insulated conductors, and wherein said pulse generating means comprises means for applying defibrillation pulses between selected pairs of said first, second and third electrodes.
Claim 15
Dependent Claim
60 words
Apparatus as claimed in claim 10 comprising a first electrode lead having said first electrode near the distal end of said first lead, and a second electrode lead including at least two second electrodes adjacent a first point in the vicinity of the distal end of said lead and adjacent to a second point proximal to said first point, respectively.
Claim 16
Dependent Claim
54 words
Apparatus as claimed in claim 10 or 11 including means for applying a defibrillation pulse between two of said first, second and third electrodes, and subsequently applying a second defibrillation pulse between the other of said first, second and third electrodes and one of the two electrodes between which said first pulse was applied.
Claim 17
Dependent Claim
48 words
Apparatus as claimed in claim 10 or 11 including means for coupling a first pair comprising two of said first, second and third electrodes to one another and delivering a defibrillation pulse between said first pair of electrodes and the other of said first, second and third electrodes.
Claim 18
Dependent Claim
63 words
Apparatus as claimed in claim 13 including means for coupling a second pair of said first, second and third electrodes to one another, said second pair comprising the other of said first, second and third electrodes and one of said first pair of electrodes and applying a pulse between said second pair of electrodes and the other of said first pair of electrodes.
Claim 19
Dependent Claim
23 words
Apparatus as claimed in any preceding claim wherein said first and second electrodes are so shaped and sized as to be locatable transvenously.
Claim 20
Dependent Claim
31 words
Apparatus as claimed in any preceding claim wherein said first electrode is of such a length as to extend from the right ventricular apex to a position adjacent the tricuspid valve.
Claim 21
Dependent Claim
18 words
Apparatus as claimed in claim 16 wherein said first electrode is from 40 to 80 mm in length.
Claim 22
Dependent Claim
29 words
Apparatus as claimed in any preceding claim wherein said second electrode is so sized and shaped as to extend from the coronary sinus to adjacent the left atrial appendage.
Claim 23
Dependent Claim
18 words
Apparatus as claimed in claim 18 wherein said second electrode is no more than 2.3 mm in diameter.
Claim 24
Dependent Claim
23 words
Apparatus as claimed in claims 18 or 19 wherein said second electrode comprises a conductive portion of 40 to 70 mm in length.
Claim 25
Dependent Claim
27 words
Apparatus as claimed in claims 18, 19 or 20 wherein said second electrode comprises two conductive rings spaced 40-80 mm from the distal end of the electrode.
Claim 26
Dependent Claim
22 words
Apparatus as claimed in claims 18 or 19 wherein said second electrode comprises two conductive rings spaced 40 to 60 mm apart.
References Cited (Backward Citations)
No citation records indexed.
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