System and method for delivering multiple closely spaced defibrillation pulses
First Claim
1. A main energy delivery electrical circuit for use in an implantable cardioverter defibrillator device, comprising:
- a) a low power output primary defibrillator battery;
b) a high power output intermediate power intensifying battery;
c) switch means, electrically connected to the intermediate power intensifying battery and the low power output primary defibrillator battery, for selectively switching between the primary defibrillator battery and the intensifying battery; and
d) a main energy delivery capacitor connected to the switch means for discharging, in a first pulse, an electrical charge from the primary battery and for discharging one or more subsequent pulses of electrical charge derived from the intermediate power intensifying battery so that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart.
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Accused Products
Abstract
A main energy delivery electrical circuit for use in an implantable cardioverter defibrillator device comprises a low power output primary defibrillator battery, a high power output intermediate power intensifying battery, a switch for permitting the intermediate power intensifying battery to rapidly charge a main energy delivery capacitor, and a main energy delivery capacitor. The main energy delivery capacitor is configured for discharging, in a first pulse, an electrical charge derived from the primary battery and for discharging certain subsequent pulses of electrical charge derived from the intermediate power intensifying battery. The circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart.
84 Citations
27 Claims
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1. A main energy delivery electrical circuit for use in an implantable cardioverter defibrillator device, comprising:
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a) a low power output primary defibrillator battery; b) a high power output intermediate power intensifying battery; c) switch means, electrically connected to the intermediate power intensifying battery and the low power output primary defibrillator battery, for selectively switching between the primary defibrillator battery and the intensifying battery; and d) a main energy delivery capacitor connected to the switch means for discharging, in a first pulse, an electrical charge from the primary battery and for discharging one or more subsequent pulses of electrical charge derived from the intermediate power intensifying battery so that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A main energy delivery electrical circuit for use in an implantable cardioverter defibrillator, comprising:
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a) a low power output primary defibrillator battery; b) a high power output intermediate power intensifying battery; c) a main energy delivery capacitor for discharging, in a first pulse, an electrical charge derived from the primary defibrillator battery and for discharging certain subsequent pulses of electrical charge derived from the intermediate power intensifying battery; and d) sub-circuit means for allowing simultaneous charging from the low power output primary defibrillator battery to both the high power output intermediate power intensifying battery and the main energy delivery capacitor. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A rapid pulse power system electrical circuit for use with an implantable cardioverter defibrillator to rapidly transition from a widely spaced defibrillation pulse sequence to a closely spaced defibrillation pulse sequence, comprising:
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a main energy delivery capacitor for charging and then discharging electrical energy as a defibrillation pulse; a low power output primary defibrillator battery; a high power output intermediate power intensifying battery; switch means for selectively permitting the primary defibrillator battery and the intermediate power intensifying battery to rapidly charge the main energy delivery capacitor; first control means for responding to a remote signal and selectively discharging the main energy delivery capacitor; and second control means for controlling the switch means and the main energy delivery capacitor for charging a first electrical energy pulse and for charging certain subsequent pulses of electrical charge derived from the intermediate power intensifying battery so that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart at any time interval following an initial defibrillation attempt by the first electrical energy pulse. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A method for configuring an implantable cardioverter defibrillator main energy delivery electrical circuit for delivery of multiple closely spaced defibrillation pulses to a heart comprising the steps of:
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a) providing a low power output primary defibrillator battery; b) providing a high power output intermediate power intensifying battery; c) providing a switch mechanism for permitting the intermediate power intensifying battery to be selectively rechargeable from the primary defibrillator battery; d) providing a main energy delivery capacitor; e) charging the main energy delivery capacitor with electrical energy derived from the primary defibrillator battery as a first pulse of electrical charge; f) discharging the first pulse of electrical charge as a defibrillation pulse; g) subsequently recharging the main energy delivery capacitor one or more times with electrical energy as subsequent pulses of electrical charge derived from the intermediate power intensifying battery; and h) discharging the subsequent pulses of electrical charge so that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart. - View Dependent Claims (26)
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27. A method of configuring an implantable cardioverter defibrillator electrical circuit as a rapid pulse power system to enable rapid transition from a widely spaced defibrillation pulse sequence to a closely spaced defibrillation pulse sequence, comprising the steps of:
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sensing ventricular arrhythmia and providing a remote signal upon detection of a ventricular arrhythmia; providing a low power output primary defibrillator battery; providing a high power output intermediate power intensifying battery; providing a main energy delivery capacitor; providing switch means for selectively permitting the primary defibrillator battery and the intermediate power intensifying battery to rapidly charge the main energy delivery capacitor; and responding to the remote signal and selectively discharging the main energy delivery capacitor so that the main energy delivery capacitor discharges, in a first pulse, an electrical charge and, in certain subsequent multiple closely spaced defibrillation pulses, discharges electrical charge derived from the intermediate power intensifying battery, the pulses being deliverable to a heart at any time interval following an initial defibrillation attempt.
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Specification