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US 7,386,342 B1Granted
Subcutaneous cardiac stimulation device providing anti-tachycardia pacing therapy and method
AssigneePacesetter, Inc.
InventorsEric Falkenberg, Mark W. Kroll, Gene A. Bornzin
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Abstract
An implantable subcutaneous cardiac device includes at least two subcutaneous electrodes adapted for placement external to a heart beneath the skin of a patient. The device further includes an arrhythmia detector that detects a sustained tachyarrhythmia of the heart and a pulse generator that delivers anti-tachycardia pacing pulses to the subcutaneous electrodes in response to detection of a sustained tachyarrhythmia. The pacing pulses preferably have waveforms devoid of any exponential voltage decay and include rounded or substantially constant portions to minimize pain.
Claims5
A system comprising:
- an implantable subcutaneous device comprising:
- at least two subcutaneous electrodes adapted for placement near a heart but neither in nor on a heart;
- an arrhythmia detector that detects a tachyarrhythmia of the heart;
- a first pulse generator operative to deliver pacing pulses to the subcutaneous electrodes, the pacing pulses having a waveform devoid of any exponential voltage decay;
- a telemetry device;
- a processor programmed to output a command through the telemetry device to deliver one or more of anti-tachycardia pacing therapy, cardioversion therapy or defibrillation therapy;
- and
- a fully implanted stimulation device comprising:
- at least one intracardiac electrode adapted for placement within or on a heart;
- a second pulse generator that delivers one or more of anti-tachycardia pacing therapy, cardioversion therapy or defibrillation therapy to the heart using the at least one intracardiac electrode in response to the command from the telemetry device.
7 more elements
Dependencies are inferred from the claim text.