Subcutaneous ICD with separate cardiac rhythm sensor
First Claim
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1. An implantable cardioverter defibrillator (ICD) system comprising:
- a cardiac rhythm sensor for sensing cardiac activity and transmitting wirelessly a cardiac rhythm signal, wherein the cardiac rhythm sensor is configured to produce the cardiac rhythm signal only when a bradycardia or tachycardia condition exists;
a subcutaneous implantable lead carrying a defibrillation electrode; and
a subcutaneous implantable cardioverter defibrillator (SubQ ICD) for receiving the cardiac rhythm signal transmitted by the cardiac rhythm sensor and detecting tachycardia or bradycardia based on the cardiac rhythm signal, wherein the SubQ ICD is connected to the lead for providing electrical pulses to the defibrillation electrode upon the SubQ ICD detection of tachycardia or bradycardia based on the cardiac rhythm signal transmitted by the cardiac rhythm sensor to the SubQ ICD,wherein the SubQ ICD includes at least one electrode located on a housing of the SubQ ICD and configured to receive the cardiac rhythm signal and apply pacing pulses.
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Abstract
A cardiac rhythm sensor positioned on or close to the heart senses electrical or mechanical activity and transmits a cardiac rhythm signal wirelessly to a subcutaneous ICD. Arrhythmia detection and delivery of therapy are performed by the SubQ ICD based upon the cardiac rhythm signal received from the sensor.
114 Citations
20 Claims
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1. An implantable cardioverter defibrillator (ICD) system comprising:
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a cardiac rhythm sensor for sensing cardiac activity and transmitting wirelessly a cardiac rhythm signal, wherein the cardiac rhythm sensor is configured to produce the cardiac rhythm signal only when a bradycardia or tachycardia condition exists; a subcutaneous implantable lead carrying a defibrillation electrode; and a subcutaneous implantable cardioverter defibrillator (SubQ ICD) for receiving the cardiac rhythm signal transmitted by the cardiac rhythm sensor and detecting tachycardia or bradycardia based on the cardiac rhythm signal, wherein the SubQ ICD is connected to the lead for providing electrical pulses to the defibrillation electrode upon the SubQ ICD detection of tachycardia or bradycardia based on the cardiac rhythm signal transmitted by the cardiac rhythm sensor to the SubQ ICD, wherein the SubQ ICD includes at least one electrode located on a housing of the SubQ ICD and configured to receive the cardiac rhythm signal and apply pacing pulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An implantable cardioverter defibrillator (ICD) system comprising:
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a subcutaneous implantable lead; a subcutaneous implantable cardioverter defibrillator (SubQ ICD) including electrodes on a housing of the SubQ ICD for sensing and pacing; a cardiac rhythm sensor for sensing cardiac activity and transmitting wirelessly a cardiac rhythm signal to the SubQ ICD, wherein the cardiac rhythm sensor comprises a plurality of electrodes for sensing an electrogram signal, signal processing circuitry for filtering, analyzing and amplifying the electrogram signal, and a transmitter for transmitting a cardiac rhythm signal corresponding to the electrogram signal, wherein the cardiac rhythm sensor is configured to produce the cardiac rhythm signal only when a bradycardia or tachycardia condition exists. - View Dependent Claims (18, 19)
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20. An implantable cardioverter defibrillator (ICD) system comprising:
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a subcutaneous implantable lead including a defibrillation coil electrode and a sensing electrode; a cardiac rhythm sensor including a ring electrode and a tip electrode for sensing cardiac activity and a distal electrode on an antenna for transmitting wirelessly a cardiac rhythm signal to the SubQ ICD, wherein the signal is only produced when a bradycardia or tachycardia condition exists; and a subcutaneous implantable cardioverter defibrillator (SubQ ICD) including canister electrodes positioned orthogonally to form signal vectors for receiving the cardiac rhythm signal transmitted by the cardiac rhythm sensor and detecting tachycardia or bradycardia based on the cardiac rhythm signal, wherein the SubQ ICD provides pacing pulses to the canister electrodes and is connected to the lead for providing electrical pulses to the defibrillation electrode upon the SubQ ICD detection of tachycardia or bradycardia based on the cardiac rhythm signal transmitted by the cardiac rhythm sensor to the SubQ ICD.
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Specification