Defibrillator power source with replaceable and rechargeable power packs
AssigneeMedtronic Physio-Control Corp.
InventorsPaul S. Tamura, Stephen B. Johnson, Richard C. Nova, Joseph L. Sullivan
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Abstract
The power source in a portable defibrillator includes a replaceable first power pack and a rechargeable second power pack. The first power pack charges the second power pack. The second power pack supplies most of the energy needed to administer a defibrillation shock. The first power pack may include one or more lithium thionyl chloride batteries. The second power pack may include one or more lithium ion batteries and/or ultracapacitors.
Claims42
A defibrillator comprising a replaceable first battery coupled to a rechargeable second battery.
A device comprising:
- a power source that supplies energy to an energy storage device in a defibrillator, the power source comprising a replaceable first power pack coupled to a rechargeable second power pack,
- wherein the replaceable first power pack comprises a lithium thionyl chloride battery,
- wherein the rechargeable second power pack comprises a lithium ion battery.
A defibrillator comprising a replaceable first power pack coupled to a rechargeable second power pack, wherein the rechargeable second power pack comprises at least one of a rechargeable battery and a capacitor and wherein the rechargeable second power pack stores at least 100 joules.
A method comprising:
- charging a second power pack in a defibrillator with a replaceable first power pack in parallel with the second power pack;
- charging an energy storage device with energy from the second power pack;
- and
- delivering energy from the energy storage device to a defibrillation electrode.
A method comprising:
- uncoupling a replaceable first power pack from a rechargeable second power pack in a defibrillator;
- coupling a fresh replaceable first power pack to the rechargeable second power pack.
A method comprising:
- charging a second power pack in a defibrillator with a first power pack, the first power pack having a maximum sustained current output of approximately 100 milliamperes;
- charging an energy storage device with the second power pack, the second power pack having a current output of at least one ampere;
- and
- delivering current from the energy storage device to a defibrillation electrode.
Dependencies are inferred from the claim text.