Source: http://www.google.com/patents/US5792190?dq=6446111
Timestamp: 2014-10-02 05:08:26
Document Index: 391793280

Matched Legal Cases: ['art 1000', 'art 3000', 'art 1000', 'art 2000', 'art 3000', 'art, 1994', 'art, 1994']

Patent US5792190 - Automated external defibrillator operator interface - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA portable automated external defibrillator (AED) configured for use with a packaged pair of defibrillator electrodes of the type electrically coupled to one another within the package and having lead wires extending from the package and an electrical connector on the ends of the lead wires. The AED...http://www.google.com/patents/US5792190?utm_source=gb-gplus-sharePatent US5792190 - Automated external defibrillator operator interfaceAdvanced Patent SearchPublication numberUS5792190 APublication typeGrantApplication numberUS 08/971,762Publication dateAug 11, 1998Filing dateNov 17, 1997Priority dateAug 1, 1995Fee statusPaidAlso published asDE69628378D1, EP0756878A2, EP0756878A3, EP0756878B1, US5645571, US5645571Publication number08971762, 971762, US 5792190 A, US 5792190A, US-A-5792190, US5792190 A, US5792190AInventorsKenneth F. Olson, Byron L. Gilman, Katherine H. Anderson, Karl J. F. KrollOriginal AssigneeSurvivalink CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (14), Non-Patent Citations (62), Referenced by (96), Classifications (8), Legal Events (10) External Links: USPTO, USPTO Assignment, EspacenetAutomated external defibrillator operator interfaceUS 5792190 AAbstract A portable automated external defibrillator (AED) configured for use with a packaged pair of defibrillator electrodes of the type electrically coupled to one another within the package and having lead wires extending from the package and an electrical connector on the ends of the lead wires. The AED includes a case with an electrode compartment configured to hold the packaged electrodes, and an openable lid for enclosing the compartment. Electrode terminals configured for electrical interconnection to the electrical connector of the electrodes, a speaker and an LED display are positioned within the electrode compartment. An operator-actuated rescue switch and a rescue LED display are positioned on the outside of the case. A high voltage circuit generates defibrillation pulses and applies the pulses to the electrode terminals. The operation of the AED is controlled by a digital control system. Rescue mode operation of the AED is initiated when the lid is opened. The digital control system then generates voice prompts and/or visual displays informing the operator: 1) when the electrodes are not properly connected to the electrode terminals, 2) when to place the electrodes on the patient, 3) when the electrodes are not properly positioned on the patient, 4) when the patient's cardiac rhythm is being analyzed, 5) when an nonshockable rhythm is identified, 6) when the high voltage circuit is being charged, and 7) when a shockable rhythm is identified and the rescue switch can be actuated.
What is claimed is: 1. An automated external defibrillator, comprising:a pair of defibrillator electrodes having a stored disposition and an operating disposition, the electrodes being disposed in an electrically conductive relationship in said stored disposition; a case including an electrode compartment and an openable lid for enclosing the compartment, the compartment configured to hold the pair of defibrillator electrodes; a lid switch for sensing when the lid is opened; electrode terminals in the electrode compartment, the electrode terminals configured for electrical interconnection to the defibrillator electrodes; a battery compartment and battery terminals in the case, the battery compartment and terminals and configured for holding and electrical interconnection to one or more batteries; a high voltage circuit coupled to the battery terminals and the electrode terminals, for generating defibrillation pulses and applying the pulses to the electrode terminals; an operator-actuated rescue switch on the case; a rescue indicator on the case; and a digital control system coupled to the lid switch, electrode terminals, high voltage circuit, rescue switch and rescue indicator, including:rescue mode initiating means for initiating rescue operation of the defibrillator when the lid is opened; rhythm analyzing means for analyzing signals present on the electrode terminals to identify a shockable cardiac rhythm; rescue indicator actuating means for activating the rescue indicator when a shockable rhythm is identified; and pulse initiating means for actuating the high voltage circuit and causing the generation of defibrillation pulses when a shockable rhythm is identified and the rescue switch is actuated; resume indicator actuating means for actuating the resume indicator if rescue data is stored in the digital control system when the lid is opened; and memory clearing means for clearing the rescue data from the digital control system when the resume button is actuated. 2. The defibrillator of claim 1 wherein the rescue indicator includes a speaker communicatively coupled to the digital control system for providing an audible voice prompt.
SUMMARY OF THE INVENTION The present invention is an improved automated external defibrillator (AED). One embodiment of the defibrillator includes a case having an electrode compartment configured to hold a pair of defibrillator electrodes, and an openable lid for enclosing the compartment. A lid switch on the case senses when the lid is opened. Electrode terminals in the electrode compartment are configured for electrical interconnection to the defibrillator electrodes. A battery compartment and battery terminals in the case are configured for holding and electrical interconnection to one or more batteries. A high voltage circuit for generating defibrillation pulses is coupled to the battery and electrode terminals. An operator-actuated rescue switch and a rescue indicator are also located on the case. A digital control system is coupled to the lid switch, electrode terminals, high voltage circuit, rescue switch and rescue indicator. The digital control system includes rescue mode initiating means, rhythm analyzing means, rescue indicator actuating means and pulse initiating means. The rescue mode initiating means initiates rescue mode operation of the defibrillator when the lid is opened. Signals present on the electrode terminals are analyzed by the rhythm analyzing means to identify a shockable cardiac rhythm. When a shockable rhythm is identified, the rescue indicator is activated by the rescue indicator actuating means. The pulse initiating means actuates the high voltage circuit and causes the generation of defibrillation pulses when a shockable rhythm is identified and the rescue switch is actuated. The rescue indicator can include both an audible voice prompt and a visual display.
FIG. 6 is a block diagram of the electrical system 70 of defibrillator 10. The overall operation of defibrillator 10 is controlled by a digital microprocessor-based control system 72 which includes a processor 74 interfaced to program memory 76, data memory 77, event memory 78 and real time clock 79. The operating program executed by processor 74 is stored in program memory 76. Data memory 77 is used by processor 74 as a scratch pad memory during the execution of the operating program. Electrical power is provided by a rechargeable twelve volt lead-acid cartridge battery 80 and a nine volt battery 82 which are removably positioned within the battery compartment and connected to power generation circuit 84. During normal operation, power generation circuit 84 generates regulated �5 V, 3.3 V and 12 V (actually about 13.3 V) supplies with the power provided by the twelve volt battery 80. Nine volt battery 82 functions as a back-up battery to power components of electrical system 70 during the execution of self-tests and to activate maintenance indicators and alarms (as described below) if the twelve volt battery 80 is low on charge. Although not separately shown in FIG. 5, power generation circuit 84 includes voltage level sensing circuits which are coupled to processor 74. The voltage level sensing circuits provide low battery level signals to processor 74 whenever the voltage levels of batteries 80 or 82 are less than predetermined values such as 12.3 V and 8 V, respectively.
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U.S. Classification607/5International ClassificationA61N1/39, A61N1/08Cooperative ClassificationA61N1/39, A61N1/3931, A61N2001/083European ClassificationA61N1/39, A61N1/39C2Legal EventsDateCodeEventDescriptionFeb 1, 2013ASAssignmentFree format text: SECURITY AGREEMENT;ASSIGNOR:CARDIAC SCIENCE CORPORATION;REEL/FRAME:029733/0340Owner name: DBS BANK LTD., BANGALORE BRANCH, INDIAEffective date: 20121228Dec 1, 2012ASAssignmentFree format text: RELEASE BY SECURED PARTY;ASSIGNOR:SILICON VALLEY BANK;REEL/FRAME:029389/0937Effective date: 20121012Owner name: CARDIAC SCIENCE CORPORATION, WASHINGTONJun 8, 2010ASAssignmentEffective date: 20100607Free format text: SECURITY AGREEMENT;ASSIGNOR:CARDIAC SCIENCE, INC.;REEL/FRAME:24492/931Owner name: SILICON VALLEY BANK,CALIFORNIAOwner name: SILICON VALLEY BANK, CALIFORNIAFree format text: SECURITY AGREEMENT;ASSIGNOR:CARDIAC SCIENCE, INC.;REEL/FRAME:024492/0931Feb 11, 2010FPAYFee paymentYear of fee payment: 12Aug 16, 2006ASAssignmentOwner name: CARDIAC 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