Rapid charging and power management of a battery-powered fluid analyte meter
First Claim
1. A battery-powered meter adapted to determine an analyte concentration of a fluid sample, the meter comprising:
- a housing defining a volume for receiving a rechargeable battery and further defining a port sized to receive at least a portion of a test sensor; and
one or more processors disposed within said housing, said one or more processors configured to implement a charge process associated with said rechargeable battery, said charge process comprising the acts of;
(i) monitoring for a connection to an external power source; and
(ii) in response to receiving identifying information of said connection to said external power source, implementing a charging routine for rapid charging of said battery at a first charge rate until a first predetermined event occurs and thereafter charging said battery at a second charge rate that is lower than said first charge rate,wherein implementation of said charging routine minimizes temperature rise in said meter such that said temperature rise is negligible to a temperature-sensitive analyte concentration test for which said meter is configured.
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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 battery-powered meter adapted to determine an analyte concentration of a fluid sample, the meter comprising:
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a housing defining a volume for receiving a rechargeable battery and further defining a port sized to receive at least a portion of a test sensor; and one or more processors disposed within said housing, said one or more processors configured to implement a charge process associated with said rechargeable battery, said charge process comprising the acts of; (i) monitoring for a connection to an external power source; and (ii) in response to receiving identifying information of said connection to said external power source, implementing a charging routine for rapid charging of said battery at a first charge rate until a first predetermined event occurs and thereafter charging said battery at a second charge rate that is lower than said first charge rate, wherein implementation of said charging routine minimizes temperature rise in said meter such that said temperature rise is negligible to a temperature-sensitive analyte concentration test for which said meter is configured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A battery-powered meter adapted to determine an analyte concentration of a fluid sample, the meter comprising:
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a housing defining a volume for receiving a rechargeable battery and further defining a port sized to receive at least a portion of a test sensor; and one or more processors disposed within said housing, said one or more processors configured to implement a charge process associated with said rechargeable battery, said charge process comprising the acts of; (i) monitoring for a connection to an external power source; and (ii) in response to receiving identifying information of said connection to said external power source, implementing a charging routine for rapid charging of said battery at a first charge rate until a first predetermined event occurs and thereafter charging said battery 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 analyte concentration tests for which said meter is configured. - View Dependent Claims (14, 15, 16, 17)
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18. A battery-powered meter adapted to determine an analyte concentration of a fluid sample, the meter comprising:
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a housing defining a volume for receiving a rechargeable battery and further defining a port sized for receiving at least a portion of a test sensor; and one or more processors disposed within said housing, at least one of said one or more processors configured to implement a charge process associated with said rechargeable battery, said charge process comprising the acts of; (i) monitoring said rechargeable battery for a remaining battery charge value that is less than a predetermined charge value; (ii) in response to receiving identifying information that said remaining battery charge value is less than the predetermined charge value, transmitting a signal for implementing a human-perceivable alert; (iii) monitoring for a connection to an external power source; and (iv) in response to receiving identifying information of said connection to said external power source, implementing a rapid charge routine for charging said rechargeable battery for less than about one minute at a charge rate of about 2C or less, wherein a determination of analyte concentration by said meter has an approximated energy draw, and wherein said implementation of said rapid charge routine configured to provide energy to said rechargeable battery to allow one or more analyte concentration determinations to be completed based on said approximated energy draw. - View Dependent Claims (19, 20)
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Specification