# US 7,625,662 B2 · Medical device battery back system and method for providing active status indication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,625,662 B2 - Document ID: US7625662B2 - Status: Granted - Kind: B2 - Application number: 11/185,476 - Filed: 2005-07-20 - Published: 2005-11-17 - Granted: 2009-12-01 - Earliest claimed: 2001-09-21 - Assignees: Defibtech, LLC - Inventors: Gintaras A. Vaisnys; Giovanni C. Meier; Glenn W. Laub - Web page: https://patentgrep.com/patent/US7625662B2 ## CPC - A61N 1/3993: {User interfaces for automatic external defibrillators} - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/247: specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers - A61B 2017/00734: {battery operated} - A61N 1/3975: {Power supply (A61N1/378 takes precedence)} - Y02E 60/10: Energy storage using batteries - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A system and method provides a status indicator to a battery pack of a medical device. The battery pack includes a power supply capable of being connected to the medical device. The battery pack also includes an indicator to automatically indicate a status of at least a portion of at least one of the battery pack and the medical device. For example, the indicator can indicate a status of the power supply. ## Claims ### Claim 1 A method of indicating status of a battery pack for a medical device, the method comprising: providing a battery pack configured to be connected to the medical device comprising an external defibrillator, the battery pack having an indicator; connecting a microprocessor in the battery pack to the indicator by circuitry, the microprocessor having programming to activate the indicator via the circuitry, the programming and circuitry cooperating to permit the programming to act autonomously to activate the indicator; connecting the microprocessor to a power source; and after the microprocessor is connected to the power source, the programming activating the indicator autonomously to provide notification of an operational status of the battery pack. ### Claim 2 (depends on 1) The method of claim 1 wherein the circuitry is uninterruptably connected between the microprocessor and the indicator. ### Claim 3 (depends on 1) The method of claim 1 wherein the circuitry is normally closed. ### Claim 4 (depends on 1) The method of claim 1 wherein the indicator is notifying the operator of operational status whenever the microprocessor is connected to a power source. ### Claim 5 (depends on 1) The method of claim 1 wherein the indicator comprises an audio indicator. ### Claim 6 (depends on 1) The method of claim 1 wherein, after the microprocessor is connected to the power source, an unactivated, other indicator indicates a non-operational status of the battery pack. ### Claim 7 (depends on 1) The method of claim 1 further comprising the steps of inserting the battery pack into the medical device thereby powering additional circuitry not part of the battery pack; and employing the indicator on the battery pack to indicate the status of the additional circuitry. ### Claim 8 (depends on 7) The method of claim 7, further comprising the step of, after inserting of the battery pack into the medical device, automatically activating another indicator not on the battery pack to indicate the combined operational status of the battery and the additional circuitry. ### Claim 9 (depends on 1) The method of claim 1 wherein the indicator indicates a status independent of the battery pack being connected with the medical device. ### Claim 10 The method of clam 1 wherein providing a battery pack comprises providing the battery pack that has a first battery and a second battery switchably connected to the microcontroller; and activating the indicator comprises activating the indicator when the microcontroller is capable of assessing the second battery as a result of a change of status of the switchable connection and the first battery having an acceptable status. ### Claim 11 (depends on 10) The method of claim 10 wherein the first battery and the second battery are electrically isolated one from the other. ### Claim 12 (depends on 1) The method of claim 1 wherein activating the indicator comprises illuminating the indicator. ### Claim 13 (depends on 1) The method of claim 1 further comprising disabling the indicator when the battery pack is inserted into the medical device.