Rapid charging and power management of a battery-powered fluid analyte meter
First Claim
1. A blood-glucose meter adapted to determine a blood-glucose concentration of a fluid sample, the meter comprising:
- a housing defining a port sized to receive at least a portion of a test sensor;
a rechargeable power source at least partially disposed within the housing; and
one or more processors disposed within said housing, said one or more processors configured to implement a charge process for charging the rechargeable power source, said charge process including rapid charging of said recharageable power source at a first charge rate until a first predetermined event occurs and thereafter charging said rechargeable power source at a second charge rate that is lower than said first charge rate,wherein implementation of said charge process minimizes temperature rise in said meter such that said temperature rise is negligible to a temperature-sensitive blood-glucose concentration test.
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Accused Products
Abstract
A system and method is described for rapid charging and power management of a battery for a meter. A charger component is operably associated with the meter and is capable of executing a rapid charge algorithm for a rechargeable battery. The algorithm includes monitoring for a connection to an external power source and implementing a charging routine of a battery at a first charge rate and then at a second charge rate. The second charge rate is lower than the first charge rate. A temperature rise in the rechargeable battery due to the first charge rate has a negligible heat transfer effect on the fluid sample. The meter can also include a power switch for controlling current flow to a battery fuel gauge. The power switch is open when the meter enters into a sleep mode. The state of battery charge is determined after the meter exits the sleep mode.
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Citations
20 Claims
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1. A blood-glucose meter adapted to determine a blood-glucose concentration of a fluid sample, the meter comprising:
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a housing defining a port sized to receive at least a portion of a test sensor; a rechargeable power source at least partially disposed within the housing; and one or more processors disposed within said housing, said one or more processors configured to implement a charge process for charging the rechargeable power source, said charge process including rapid charging of said recharageable power source at a first charge rate until a first predetermined event occurs and thereafter charging said rechargeable power source at a second charge rate that is lower than said first charge rate, wherein implementation of said charge process minimizes temperature rise in said meter such that said temperature rise is negligible to a temperature-sensitive blood-glucose concentration test. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A blood-glucose meter adapted to determine a blood-glucose concentration of a fluid sample, the meter comprising:
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a housing defining a port sized to receive at least a portion of a test sensor; a rechargeable power source at least partially disposed within the housing; and one or more processors disposed within said housing, said one or more processors configured to implement a charge routine comprising rapid charging of said rechargeable power source at a first charge rate until a first predetermined event occurs and thereafter charging said rechargeable power source at a second charge rate that is lower than said first charge rate, wherein implementation of said charge routine is in accordance with temperature rise criteria for said meter in view of particular temperature sensitive blood-glucose concentration tests for which said meter is configured. - View Dependent Claims (13, 14, 15, 16)
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17. A blood glucose meter adapted to determine a blood-glucose concentration of a fluid sample, the meter comprising:
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a housing defining a port sized to receive at least a portion of a test sensor; a rechargeable power source at least partially disposed within the housing; and one or more processors disposed within said housing, said one or more processors configured to implement a charge process comprising rapid charging of said rechargeable power source at a first charge rate until a first predetermined event occurs and thereafter charging said rechargeable power source at a second charge rate that is lower than said first charge rate, wherein implementation of said charge process causes a negligible temperature rise in the rechargeable power source due to the first and second charge rates, thereby limiting temperature effects in determining a blood-glucose concentration of the fluid sample. - View Dependent Claims (18, 19, 20)
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Specification