Monophasic waveform for anti-bradycardia pacing for a subcutaneous implantable cardioverter-defibrillator
AssigneeCameron Health, Inc.
InventorsGust Bardy, Riccardo Cappato, William Rissmann
Life of this patent
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Abstract
A power supply for an implantable cardioverter-defibrillator for subcutaneous positioning between the third rib and the twelfth rib and using a lead system that does not directly contact a patient's heart or reside in the intrathoracic blood vessels and for providing anti-bradycardia pacing energy to the heart, comprising a capacitor subsystem for storing the anti-bradycardia pacing energy for delivery to the patient's heart; and a battery subsystem electrically coupled to the capacitor subsystem for providing the anti-bradycardia pacing energy to the capacitor subsystem.
Claims21
A method of treating a patient comprising:
- providing an implanted cardiac stimulus system having a canister and a lead assembly, the system being provided such that it does not contact or enter the heart;
- detecting cardiac activity by capturing electrical signals from the heart using electrodes which do not contact or enter the heart;
- determining whether cardiac stimulus appears to be indicated;
- and, if so,
- delivering cardiac stimulus using electrodes which do not contact or enter the heart, the cardiac stimulus having a peak amplitude in the range of 25-50 volts.
A method of treating a patient comprising:
- providing an implanted cardiac stimulus system having a canister and a lead assembly, the system being provided such that it does not contact or enter the heart;
- detecting cardiac activity by capturing electrical signals from the heart using electrodes which do not contact or enter the heart;
- determining whether cardiac stimulus appears to be indicated;
- and, if so,
- delivering cardiac stimulus using electrodes which do not contact or enter the heart, the cardiac stimulus having a peak amplitude in the range of 50-75 volts.
A method of treating a patient comprising:
- providing an implanted cardiac stimulus system having a canister and a lead assembly, the system being provided such that it does not contact or enter the heart;
- detecting cardiac activity by capturing electrical signals from the heart using electrodes which do not contact or enter the heart;
- determining whether cardiac stimulus appears to be indicated;
- and, if so,
- delivering cardiac stimulus using electrodes which do not contact or enter the heart, the cardiac stimulus having a peak amplitude in the range of 0.1-25 volts.
A method of treating a patient comprising:
- providing an implantable cardiac stimulus system consisting of:
- a canister housing operational circuitry and a battery, the canister being disposed at a subcutaneous position;
- a lead assembly consisting of a single elongate member coupled to the canister at a first end thereof and having a plurality of electrodes disposed at or near a second end thereof, with a plurality of electrical conductors extending therein;
- implanting the implantable cardiac stimulus system into a patient such that neither the canister nor the lead electrode assembly touches or enters the heart or resides in an intrathoracic blood vessel;
- detecting cardiac activity by the observation of electrical signals generated in the patient's heart;
- determining whether cardiac stimulus appears to be indicated;
- and, if so,
- delivering cardiac stimulus.
Dependencies are inferred from the claim text.