Charging and safety control for automated external defibrillator and method
AssigneeSurVivaLink Corporation
InventorsKenneth F. Olson, Byron L. Gilman
Life of this patent
Estimating the term…
Abstract
A fail-safe safety circuit for a portable automated external defibrillator allows earlier charging of capacitors. In turn, the earlier charging of the capacitors allows quicker release of a defibrillation shock than prior art method of automatically detecting the appropriateness of administering a defibrillation shock and subsequently preparing the shock.
Claims16
An automated external defibrillator comprising:
- a charging circuit for preparing and temporarily storing a defibrillation shock;
- a manually actuated trigger switch mechanism for generating a defibrillation shock release request signal;
- monitoring and analysis means operably communicatively coupled to the trigger switch mechanism for pre-qualifying release of a defibrillation shock in response to the defibrillation shock release request signal from the trigger switch mechanism;
- and
- a safety switch mechanism operably communicatively coupled to the trigger switch mechanism, separately responsive to the defibrillation shock release request signal from the monitoring and analysis means, for connecting a pre-qualified release of a defibrillation shock to patient electrode terminals.
An automated portable external defibrillator comprising:
- a charging circuit for preparing and temporarily storing a defibrillation shock;
- a manually actuated double pole trigger switch mechanism for generating a defibrillation shock release request signal;
- and
- a safety switch mechanism, responsive to the defibrillation shock release request signal, for connecting a defibrillation shock to patient electrode terminals;
- and
- monitoring and analysis means prequalifying the generation of the defibrillation shock release request signal.
An automated external defibrillator comprising:
- switch means for electrical interconnection to the electrical power supply;
- a charging circuit, connected to the switch means for electrical interconnection, for preparing and temporarily storing a defibrillation shock;
- a manually actuated trigger switch mechanism for generating a defibrillation shock release request signal;
- monitoring and analysis means for pre-qualifying release of a defibrillation shock in response to the defibrillation shock release request signal from the trigger switch mechanism;
- a switch mechanism, controlled by the monitoring and analysis means, for releasing a defibrillation shock;
- and
- patient electrode terminals for connection and conveyance of a released defibrillation shock.
A method for providing automated external defibrillation shocks, comprising the steps of:
- providing an electrical power supply, a charging circuit capable of preparing and temporarily storing a defibrillation shock, and a switched interconnection therebetween;
- providing a monitoring and analysis circuit to automatically prevent release of a defibrillation shock in the absence of a pre-qualified situation, and a manually actuated trigger switch to request a pre-qualified defibrillation shock release by the monitoring and analysis circuit;
- activating the switched interconnection to begin preparing and storing a defibrillation shock;
- and
- subsequent to activating the switched interconnection, manually actuating the trigger switch to request the monitoring and analysis circuit to release a pre-qualified defibrillation shock.
A method for providing automated external defibrillation shocks, comprising the steps of:
- providing a monitoring and analysis circuit to automatically prevent release of a defibrillation shock in the absence of a pre-qualified situation, and a manually actuated trigger switch mechanism to request a pre-qualified defibrillation shock release by the monitoring and analysis circuit;
- manually actuating the trigger switch mechanism to request the monitoring and analysis circuit to release a pre-qualified defibrillation shock;
- providing a safety switch mechanism, separately responsive to the trigger switch mechanism from the monitoring and analysis circuit, to connect the pre-qualified defibrillation shock to patient electrode terminals, thereby separately assuring that the trigger switch mechanism was manually actuated.
A method for providing a defibrillation shock using an automated external defibrillator (AED) having AED circuitry including an electrical power supply interconnected to a charging circuit capable of preparing and temporarily storing a defibrillation shock, a pair of electrodes connected to the charging circuit, a processor for controlling operation of the AED, an analysis circuit connected to the processor, and a trigger switch operably coupled to the AED circuitry for initiating generation of a defibrillating shock, the method including the steps of:
- turning the AED on;
- activating the charging circuit to prepare and store a defibrillation shock;
- instigating the analysis circuit after the charging circuit has been activated, and
- generating the defibrillating shock, deliverable to a patient.
A method for providing a defibrillation shock using an automated external defibrillator having AED circuitry including an electrical power supply interconnected to a charging circuit capable of preparing and temporarily storing a defibrillation shock, a pair of electrodes connected to the charging circuit, a processor for controlling operation of the AED, an analysis circuit connected to the processor, and a trigger switch operably coupled to the AED circuitry for initiating generation of a defibrillating shock, the method including the steps of:
- turning the AED on;
- activating the charging circuit to prepare and store a defibrillation shock;
- instigating the analysis circuit simultaneously to the actuation of the charging circuit, and
- generating the defibrillating shock, deliverable to a patient.
Dependencies are inferred from the claim text.