Methods and devices for multi-stage ventricular therapy
First Claim
1. An implantable therapy generator, comprising:
- detection circuitry configured to detect a ventricular arrhythmia;
control circuitry operably connected to the detection circuitry that, in response to detection of a ventricular arrhythmia, controls generation and selective delivery of a therapy without confirmation of conversion of the ventricular arrhythmia during the therapy, the therapy including;
a first set of electrical pulses to destabilize a reentry associated with the ventricular arrhythmia; and
a second set of electrical pulses to terminate the reentry associated with the ventricular arrhythmia, wherein the first set of pulses is greater in number than the second set of pulses.
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Abstract
Methods and apparatus for a three-stage ventricular cardioversion and defibrillation therapy that treats ventricular tachycardia and fibrillation at low energy levels. An implantable therapy generator adapted to generate and selectively deliver a three-stage ventricular therapy and at least two leads operably each having at least one electrode adapted to be positioned proximate the ventricle of the patient. The device is programmed to deliver a three-stage therapy via both a far-field configuration and a near-field configuration of the electrodes upon detection of a ventricular arrhythmia. The three-stage therapy includes a first stage for unpinning of one or more singularities associated with the ventricular arrhythmia, a second stage for anti-repinning of the one or more singularities, both of which are delivered via the far-field configuration of the electrodes, and a third stage for extinguishing of the one or more singularities associated delivered via the near-field configuration of the electrodes.
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Citations
52 Claims
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1. An implantable therapy generator, comprising:
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detection circuitry configured to detect a ventricular arrhythmia; control circuitry operably connected to the detection circuitry that, in response to detection of a ventricular arrhythmia, controls generation and selective delivery of a therapy without confirmation of conversion of the ventricular arrhythmia during the therapy, the therapy including; a first set of electrical pulses to destabilize a reentry associated with the ventricular arrhythmia; and a second set of electrical pulses to terminate the reentry associated with the ventricular arrhythmia, wherein the first set of pulses is greater in number than the second set of pulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable therapy generator, comprising:
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detection circuitry configured to detect a ventricular arrhythmia; control circuitry operably connected to the detection circuitry that, in response to detection of a ventricular arrhythmia, controls generation and selective delivery of a therapy without confirmation of conversion of the ventricular arrhythmia during the therapy, the therapy including; a first set of electrical pulses to destabilize a reentry associated with the ventricular arrhythmia; and a second set of electrical pulses to terminate the reentry associated with the ventricular arrhythmia, wherein the second set of pulses is greater in number than the first set of pulses. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for treating a ventricular arrhythmia, the method comprising:
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detecting a ventricular arrhythmia with an implantable electrical stimulator, the implantable electrical stimulator operably coupled to at least one electrode implantable proximate a heart of a patient, the implantable electrical stimulator including; detection circuitry configured to evaluate at least one biological signal to detect the ventricular arrhythmia, wherein the at least one biological signal corresponds to electrical activity of the heart; and control circuitry configured to deliver a plurality of sets of electrical stimulation to the heart in response to the detected ventricular arrhythmia, the plurality of sets of electrical stimulation having at least a first set and a second set, wherein the first set includes a first plurality of pulses and is configured to destabilize a reentry associated with the ventricular arrhythmia, and wherein the second set includes a second plurality of pulses and is configured to terminate the reentry associated with the ventricular arrhythmia, wherein the first plurality of pulses in the first set is greater in number than the second plurality of pulses in the second set; and delivering the plurality of sets of electrical stimulation without confirmation of conversion of the detected ventricular arrhythmia during delivery of the plurality of sets of electrical stimulation. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method for treating a ventricular arrhythmia, the method comprising:
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detecting a ventricular arrhythmia with an implantable electrical stimulator, the implantable electrical stimulator operably coupled to at least one electrode implantable proximate a heart of a patient, the implantable electrical stimulator including; detection circuitry configured to evaluate at least one biological signal to detect the ventricular arrhythmia, wherein the at least one biological signal corresponds to electrical activity of the heart; and control circuitry configured to deliver a plurality of sets of electrical stimulation to the heart in response to the detected ventricular arrhythmia, the plurality of sets of electrical stimulation having at least a first set and a second set, wherein the first set includes a first plurality of pulses and is configured to destabilize a reentry associated with the ventricular arrhythmia, and wherein the second set includes a second plurality of pulses and is configured to terminate the reentry associated with the ventricular arrhythmia, wherein the second plurality of pulses in the second se is greater in number than the first plurality of pulses in the first set; and delivering the plurality of sets of electrical stimulation without confirmation of conversion of the detected ventricular arrhythmia during delivery of the plurality of sets of electrical stimulation. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification