Apparatus and method for treating ventricular fibrillation and ventricular tachycardia
AssigneesRuse Technologies, LLC, The UAB Research Foundation
InventorsRaymond E. Ideker, Derek J. Dosdall, James P. Ruse, Richard B. Ruse, Scott J. Bohanan
Life of this patent
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Abstract
An apparatus for treating ventricular fibrillation or ventricular tachycardia comprises means for dynamically steering or selecting two or more current vector paths sequentially or simultaneously for defibrillation so as to change the transmembrane potential in the left and right ventricles sufficiently to halt VF or VT.
Claims28
A method of treating ventricular fibrillation or ventricular tachycardia in a patient, which comprises sequentially or simultaneously delivering to the patient's heart through at least two leads or electrodes signals having arbitrary waveforms for defibrillation, wherein the amplitude of voltage and/or current for each lead or electrode is varied by using an amplifier array to change the transmembrane potential in the left and right ventricles in the patient's heart sufficiently to halt VF or VT.
A method of treating ventricular fibrillation or ventricular tachycardia in a patient, which comprises delivering biphasic ascending exponential, ramp, or damped sinusoidal waveforms which are compatible with the transmembrane potential response within the myocardium by using an amplifier array where any two, three, or four amplifiers and their respective electrodes may be driven differentially to draw current through selected current pathways or different angular perspectives within the right and left ventricles to rapidly terminate VF or VT.
A method of treating ventricular fibrillation or ventricular tachycardia in a patient which comprises providing an implantable or external ventricular defibrillation and or ventricular tachycardia cardioversion device which uses less energy than conventional defibrillation devices thereby reducing pain levels, tissue stunning, and damage associated with very high voltage electrical shocks, wherein transmembrane potentials are achieved using sequential or simultaneous arbitrary waveform shocks.
An apparatus for treating ventricular fibrillation or ventricular tachycardia, which comprises
- means for sequentially or simultaneously delivering to the patient's heart through at least two leads or electrodes signals having arbitrary waveforms for defibrillation;
- and
- an amplifier array,
- wherein the amplitude of voltage and/or current for each lead or electrode is varied by using the amplifier array to change the transmembrane potential in the left and right ventricles in the patient's heart sufficiently to halt VF or VT.
An apparatus for treating ventricular fibrillation or ventricular tachycardia in a patient, which comprises means for delivering biphasic ascending or descending exponential, ramp, or damped sinusoidal waveforms which are compatible with the transmembrane potential response within the myocardium by using an amplifier array where any two, three, or four amplifiers and their respective electrodes may be driven differentially to draw current through selected current pathways or different angular perspectives within the right and left ventricles to rapidly terminate VF or VT.
Dependencies are inferred from the claim text.