Nontransvenous and nonepicardial methods of cardiac treatment and stimulus
First Claim
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1. A method of treatment of a patient comprising:
- implanting a cardiac stimulus device consisting of a canister and a lead, the canister including one or more electrodes thereon, the lead including a stimulus delivery electrode, such that the cardiac stimulus device, once implanted is entirely disposed in non-vascular and non-cardiac locations;
wherein implantation is performed such that the cardiac stimulus device senses cardiac signals in order to identify an arrhythmia using at least one electrode on the lead in combination with at least one electrode on the canister, with neither electrode that is used for sensing disposed in or on the heart of the patient; and
wherein implantation is performed such that the cardiac stimulus device will, in response to a detected arrhythmia, deliver defibrillation therapy to the heart of the patient using only the stimulus delivery electrode of the lead and an electrode disposed on the canister, such that therapy will be delivered with neither therapy delivery electrode disposed in or on the heart of the patient.
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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-tachycardia pacing energy to the heart, comprising a capacitor subsystem for storing the anti-tachycardia pacing energy for delivery to the patient'"'"'s heart; and a battery subsystem electrically coupled to the capacitor subsystem for providing the anti-tachycardia pacing energy to the capacitor subsystem.
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Citations
17 Claims
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1. A method of treatment of a patient comprising:
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implanting a cardiac stimulus device consisting of a canister and a lead, the canister including one or more electrodes thereon, the lead including a stimulus delivery electrode, such that the cardiac stimulus device, once implanted is entirely disposed in non-vascular and non-cardiac locations; wherein implantation is performed such that the cardiac stimulus device senses cardiac signals in order to identify an arrhythmia using at least one electrode on the lead in combination with at least one electrode on the canister, with neither electrode that is used for sensing disposed in or on the heart of the patient; and wherein implantation is performed such that the cardiac stimulus device will, in response to a detected arrhythmia, deliver defibrillation therapy to the heart of the patient using only the stimulus delivery electrode of the lead and an electrode disposed on the canister, such that therapy will be delivered with neither therapy delivery electrode disposed in or on the heart of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of treatment of a patient comprising:
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implanting a cardiac stimulus device consisting of a canister housing stimulus delivery circuitry and a lead including one or more electrodes, such that, once implanted, the cardiac stimulus device is entirely disposed in non-vascular and non-cardiac locations; wherein implantation is performed such that the cardiac stimulus device senses cardiac signals in order to identify an arrhythmia using at least one electrode on the lead in combination with at least one electrode on the canister, with neither electrode that is used for sensing disposed in or on the heart of the patient; and wherein the implantation is performed such that the cardiac stimulus device, upon identifying an arrhythmia, will use the stimulus delivery circuitry to deliver defibrillation therapy using a first single electrode and a second single electrode, both electrodes being disposed outside the patient'"'"'s heart and vasculature; wherein the stimulus delivery circuitry generates an output current between only the first single electrode and the second single electrode, wherein the first electrode is disposed on the lead and the second electrode is disposed on the canister. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of treatment comprising:
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implanting in a patient a cardiac stimulus device consisting of a canister and a lead electrode assembly, the canister housing output circuitry for providing output electrical stimulus to the patient between first and second outputs, a first stimulus electrode disposed on the lead electrode assembly, the first output being coupled to the first stimulus electrode and no other electrode, the second output being coupled to one or more stimulus electrodes disposed on the canister and no other electrode, the cardiac stimulus device being implanted such that no part thereof extends into or resides within the thoracic cavity of the patient; wherein the implantation is performed such that the cardiac stimulus device, once implanted, will sense cardiac electrical activity in order to detect arrhythmias using only electrodes that are implanted without contacting or entering the heart of the patient; and wherein the implantation is performed such that the cardiac stimulus device, upon identifying an arrhythmia, will use the stimulus delivery circuitry to deliver defibrillation therapy to the patient via the output circuitry by using only electrodes that do not contact or enter the heart of the patient. - View Dependent Claims (16, 17)
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Specification