Medical device battery system including a secondary power supply
First Claim
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1. A power supply system for an external defibrillator having an operating mode and an alternate mode, the power supply system comprising:
- an external defibrillator having a main unit circuit and a battery pack circuit, the main unit circuit and battery pack circuit cooperating to deliver energy to a patient and the battery pack circuit for providing functions of the external defibrillator other than delivering energy to the patient,a first power supply comprising a first battery, the first power supply providing electrical power to the main unit circuit and the battery pack circuit;
a main power switch interposed between the first power supply and both of the main unit circuit and the battery pack circuit, the main power switch having a first state and a second state, the main power switch in the first state allowing the electrical power to flow from the first power supply to the main unit circuit and the battery pack circuit during the operating mode and in the second state preventing the electrical power from flowing from the first power supply to the main unit circuit and the battery pack circuit during the alternate mode, the main power switch alternatable between the first and second states; and
a second power supply comprising a second battery, the second power supply and the first power supply being connected by circuitry, the circuitry and main power switch cooperating such that when the main power switch is in the second state, the second power supply provides electrical power to the battery pack circuit and the circuitry isolates the second power supply from the main unit circuit, and when the main power switch is in the first state, the circuitry isolates the second power supply from the battery pack circuit and the main unit circuit.
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Abstract
A battery system for a medical device includes a first power supply and a second power supply. The first power supply is capable of being connected to the medical device to supply power to the medical device during a first operating mode of the medical device. The second power supply supplies power to at least one of a portion of the medical device and the battery system during an alternate mode, exclusive of a state the first power supply.
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Citations
34 Claims
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1. A power supply system for an external defibrillator having an operating mode and an alternate mode, the power supply system comprising:
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an external defibrillator having a main unit circuit and a battery pack circuit, the main unit circuit and battery pack circuit cooperating to deliver energy to a patient and the battery pack circuit for providing functions of the external defibrillator other than delivering energy to the patient, a first power supply comprising a first battery, the first power supply providing electrical power to the main unit circuit and the battery pack circuit; a main power switch interposed between the first power supply and both of the main unit circuit and the battery pack circuit, the main power switch having a first state and a second state, the main power switch in the first state allowing the electrical power to flow from the first power supply to the main unit circuit and the battery pack circuit during the operating mode and in the second state preventing the electrical power from flowing from the first power supply to the main unit circuit and the battery pack circuit during the alternate mode, the main power switch alternatable between the first and second states; and a second power supply comprising a second battery, the second power supply and the first power supply being connected by circuitry, the circuitry and main power switch cooperating such that when the main power switch is in the second state, the second power supply provides electrical power to the battery pack circuit and the circuitry isolates the second power supply from the main unit circuit, and when the main power switch is in the first state, the circuitry isolates the second power supply from the battery pack circuit and the main unit circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 29, 30, 31, 32)
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13. A method of powering components of an external defibrillator having an operating mode and an alternate mode, the external defibrillator having a main unit circuitry and a battery pack circuitry which cooperate for delivering energy to a patient during the operating mode, and the battery pack circuitry for powering functions of the external defibrillator other than delivering energy to a patient during the alternate mode, the second power supply and the first power supply being connected to intermediate circuitry, the method comprising:
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controlling power from a first power supply with a main power switch, the first power supply comprising a first battery, the main power switch interposed between the first power supply and both of the main unit circuitry and the battery pack circuitry, the main power switch having a first state and a second state, the main power switch alternatable between the first and second states; allowing the electrical power to flow from the first power supply to the main unit circuit and the battery pack circuitry during the operating mode when the main power switch in the first state and while the intermediate circuitry isolates the second power supply from the battery pack circuit; preventing the electrical power from flowing from the first power supply to the main unit circuit and the battery pack circuitry during the alternate mode when the main power switch is in the second state; and powering the battery pack circuitry of the external defibrillator with a second power supply comprising a second battery when the intermediate circuitry isolates the second power supply from the main unit circuitry and while the main power switch is in the second state. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 33)
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25. In an external defibrillator having energy delivery circuitry for delivering energy to a patient and battery pack circuitry controlling functions of the external defibrillator other than delivering energy to a patient, the improvement comprising:
a battery system for the external defibrillator having a first power supply comprising a first battery and a second power supply comprising a second battery, the first power supply being connected to the energy delivery circuitry by a main power switch, the main power switch interposed between the first power supply and both of the energy delivery circuitry and the battery pack circuitry, the main power switch in the first state allowing the electrical power to flow from the first power supply to the energy delivery circuitry and the battery pack circuitry during an operating mode, and in the second state preventing the electrical power from flowing from the first power supply to the energy delivery circuitry and the battery pack circuitry during an alternate mode, the main power switch alternatable between the first and second states, the second power supply and the first power supply being connected by intermediate circuitry, the intermediate circuitry and main power switch cooperating such that when the main power switch is in the second state, the second power supply provides electrical power to the battery pack circuitry and the intermediate circuitry isolates the second power supply from the main unit circuit, and when the main power switch is in the first state, the intermediate circuitry isolates the second power supply from the battery pack circuitry and the energy delivery circuitry. - View Dependent Claims (26, 27, 28, 34)
Specification