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Battery management apparatus for portable electronic devices
| Details |
Inventors: Kaib, Thomas E.; Donnelly, Edward J.; Connors, Norman J.;
Assignee: Lifecor, Inc. (Pittsburgh, PA)
Primary Examiner: Tso; Edward H.
Assistant Examiner:
Attorney, Agent or Firm: Buchanan Ingersoll, P.C.
A battery management system preferably has a base station utilized in connection with a portable electronic device for providing electrical therapy to the body of a patient in response to the occurrence of a treatable condition. The portable device can have a rechargeable battery, memory, data processor for determining available operating time for the portable device prior to recharging, and a display panel, or alarm, to inform the patient of such available operating time. The portable device data processor contains an analog to digital converter which is used to obtain and record data regarding the patient, the battery, and the portable device operational status. The base station can have a receptacle to receive the portable device, including a port for transferring data between the memory of the portable device and the base station, a power supply associated with the port for supplying charging current to the battery, a computer for exchanging information with the portable device memory, and a battery maintenance portion. The maintenance portion can perform tests on the battery to evaluate the condition thereof. The base station can further include a display and alarms to inform the patient regarding the condition of both the battery and the portable device. The portable device can also include a converter-defibrillator and a second battery maintenance portion which can operate independently of the base station. Tests can be performed, during operation of the portable device, to evaluate the condition of the battery while the portable device is separated from the base station. |
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DETAILED DESCRIPTION The present invention is preferably utilized in connection with a patient-worn energy delivery system for imparting electrical therapy to the body of a patient responsive to an occurrence of a treatable condition. The present invention is designed to constantly monitor and comprehensively inform the patient of the condition of the device, and particularly the condition of the device battery. The system includes a monitor-defibrillator worn by the patient. The monitor-defibrillator monitors the patient's ECG to detect life threatening arrhythmias and delivers a cardioverting or defibrillating shock if needed. The monitor-defibrillator records system operational information and ECG signal data. Periodically the patient is required to off-load this information to a patient base station. This is accomplished when the monitor-defibrillator is connected to a patient base station at the time battery charging is initiated. Thus, the patient base station is coupled with the monitor-defibrillator for periodic battery charging, device maintenance and the offloading of data. When a monitor-defibrillator is inserted into the monitor interface connector, the patient base station retrieves battery status from the monitor. The patient base station analyzes this information and may schedule maintenance operations or patient notifications if certain conditions are met. The primary functions performed by the patient base station are providing data communication interfaces to the various components of the system, battery pack charging and maintenance, monitor-defibrillator maintenance, monitor-defibrillator data retrieval and storage, facilitating monitor-defibrillator initialization via the physician programming console and providing visual and audible feedback for patient interactions. The patient base station provides means to simulate the operation of various monitor-defibrillator and electrode harness hardware functions. These enable the patient base station to verify that the monitor-defibrillator and the electrode harness hardware is functioning properly
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