SELF-DIAGNOSTIC METHOD AND SYSTEM FOR IMPLANTABLE CARDIAC DEVICE

• US 20100298903A1
• Filed: 07/02/2010
• Published: 11/25/2010
• Est. Priority Date: 07/14/2004
• Status: Active Grant

• Current Assignee: Aaron Mccabe, David J. Yonce
• Original Assignee: Aaron Mccabe, David J. Yonce
• Inventors: Yonce, David J., McCabe, Aaron
• Granted Patent: US 8,712,524 B2
• Time in Patent Office: Days
• US Class Current: 607/17
• CPC Class Codes: A61N 1/0504 Subcutaneous electrodes
• CPC Class Codes: A61N 1/3706 Pacemaker parameters stimulation threshold A61N1/371
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators

Abstract

A self-diagnostic system for an implantable cardiac device such as a pacemaker, cardioverter, or resynchronization device which utilizes a subcutaneous ECG channel is described. The subcutaneous ECG channel allows the device to, in real time and independent of the standard pacing and sensing circuitry, verify the presence of pacing spikes, chamber senses, and other device outputs and hence establish and verify device integrity.

Claims

1. A cardiac rhythm management device, comprising:

one or more intra-cardiac sensing channels for sensing intrinsic cardiac activity and generating intra-cardiac electrogram signals;

a sensing channel incorporating a subcutaneous electrode for generating a subcutaneous ECG signal;

a pacing channel for pacing a cardiac chamber;

a controller for receiving sensing signals and controlling the delivery of pacing pulses in accordance with a programmed mode; and

,

wherein the controller is programmed to detect device events in the subcutaneous ECG signal and set an alarm flag if a discrepancy is found to exist.