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 capacitor system;
c) switch means, electrically connected to the intensifying capacitor system and the primary defibrillator battery, for selectively switching between the primary defibrillator battery and the intensifying capacitor system;
d) a high voltage transformer system electrically connected to the switch means; and
a main energy delivery capacitor system connected to the transformer system for storing, in a first pulse to be discharged, an electrical charge from the primary defibrillator battery and for storing, as at least one subsequent pulse to be discharged, an electrical charge derived from the intensifying capacitor system,such that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart.
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0 Petitions
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 capacitor system, a switch for permitting the intermediate power intensifying capacitor system 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 capacitor system. The circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart.
80 Citations
18 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 capacitor system; c) switch means, electrically connected to the intensifying capacitor system and the primary defibrillator battery, for selectively switching between the primary defibrillator battery and the intensifying capacitor system; d) a high voltage transformer system electrically connected to the switch means; and a main energy delivery capacitor system connected to the transformer system for storing, in a first pulse to be discharged, an electrical charge from the primary defibrillator battery and for storing, as at least one subsequent pulse to be discharged, an electrical charge derived from the intensifying capacitor system, such 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 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 capacitor system; c) periodically recharging the intensifying capacitor system from the primary defibrillator battery; d) providing a main energy delivery capacitor system; e) charging the delivery capacitor system 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 delivery capacitor system at least once within 5 seconds with electrical energy derived from the intensifying capacitor system as at least one subsequent pulse of electrical charge; and h) discharging the subsequent pulse of electrical charge. - View Dependent Claims (10)
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11. A main energy delivery electrical circuit for use in an implantable cardioverter defibrillator device, comprising:
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a) a primary power source having a given electrical power transfer rate; b) a power intensifying system separate from the primary power source for increasing the electrical power transfer rate above that of the primary power source; c) switch means, electrically connected to the power intensifying system and the primary power source, for selectively switching between the power intensifying system and the primary power source; d) a high voltage transformer system electrically connected to the switch means; and e) a main energy delivery capacitor system connected to the transformer system for storing, in a first pulse to be discharged, an electrical charge from the primary defibrillator battery and for storing, as at least one subsequent pulse to be discharged, an electrical charge derived from the intensifying capacitor system, such that the electrical circuit permits the implantable cardioverter defibrillator device to deliver multiple closely spaced defibrillation pulses to a heart. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification