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EP0024913A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Electrodes for cardiac pacemakers

Assignee: American Pacemaker Corp
•
Filing: 1980-08-26
•
Granted: —
•
Expires: 2000-08-26
📄 Original PDF 🌐 Google Patents

Abstract

Abstract A dual electrode for use in cardiac pacemaking to enable both ventricular and atrial electrical contact to be made. The electrode is formed as a catheter (4) for passing through a blood vessel to the heart and has a ventricular electrode at its distal end. Spaced back from the distal end are one or more atrial electrodes (2) in a plane transverse to the catheter and spaced radially apart therefrom. The or each atrial electrode is supported in a material (14) sufficiently flexible and resilient to enable the atrial electrode(s) to distort out of the plane and pass through the blood vessel. The atrial electrodes may be formed as separate prongs, or a single continuous electrode may be formed (to resemble a small floppy disc). Means such as springs (12) may be provided to increase the resilience of the material (14) supporting the atrial electrodes (2).

Inventors

  • 👤 George Edgar Sowton

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 22:04
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 125 words
A dual electrode for use in cardiac pacemaking to enable both ventricular and atrial electrical contact to be made, which comprises a catheter for insertion through a blood vessel to the heart and having at its distal end a ventricular electrode electrically-connected to the proximal end of the catheter, and, spaced apart from the ventricular electrode, at least one atrial electrode disposed in a plane transverse to the catheter and spaced radially apart therefrom, said at least one atrial electrode being supported in a material connected to said catheter which is sufficiently flexible and resilient to enable the atrial electrode(s) to be deformed out of said plane and pass through said blood vessel, said atrial electrode(s) being electrically-connected to the proximal end of the catheter.
Claim 2
Dependent Claim 125 words
A dual electrode for use in cardiac pacemaking to enable both ventricular and atrial electrical contact to be made, which comprises a catheter for insertion through a blood vessel to the heart and having at its distal end a ventricular electrode electrically-connected to the proximal end of the catheter, and, spaced apart from the ventricular electrode, at least one atrial electrode disposed in a plane transverse to the catheter and spaced radially apart therefrom, said at least one atrial electrode being supported in a material connected to said catheter which is sufficiently flexible and resilient to enable the atrial electrode(s) to be deformed out of said plane and pass through said blood vessel, said atrial electrode(s) being electrically-connected to the proximal end of the catheter.
Claim 3
Dependent Claim 19 words
A dual electrode according to claim 1 wherein said atrial electrode(s) are formed in a sheath of plastics material.
Claim 4
Dependent Claim 17 words
A dual electrode according to claim 2 wherein said sheath encloses means for increasing the resiliency thereof.
Claim 5
Dependent Claim 25 words
A dual electrode according to any of claims 1 to 3 wherein at least two atrial electrodesare provided extending outwardly from said catheter as prongs.
Claim 6
Dependent Claim 18 words
A dual electrode according to claim 4, wherein three atrial electrodes are provided, symmetrically disposed around the catheter.
Claim 7
Dependent Claim 26 words
A dual electrode according to any of claims 1 to 3 wherein a single continuous atrial electrode is provided spaced apart from and circumscribing the catheter.
Claim 8
Dependent Claim 33 words
A dual electrode according to any of claims 1 to 6 wherein the or each atrial electrode makes electrical contact with a metal ring which circumscribes and is in contact with the catheter.

References Cited (Backward Citations)

GB1337670A Cited
DE2358883A1 Cited
US3935864A Cited
US3935864B1 Cited
US3865118A Cited
US3981309A Cited
DE2605590A1 Cited

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