Patent ID: 7727148

Claim:
A system for sensing blood glucose concentration of a person, the system comprising: a sensor to sense blood glucose data; sensor electronics attached to the sensor and adapted to communicate with the sensor, the sensor electronics including a sensor power supply to supply power to the sensor, said sensor power supply being activated when the sensor is connected to a device selected from the group consisting of a user interface and a patient monitor, said device being separate from said sensor electronics; a user interface configured to communicate wirelessly with the sensor electronics; and a patient monitor configured to communicate wirelessly with the user interface and including a display to display information representative of the blood glucose data sensed by the sensor, wherein the sensor power supply comprises at least one rechargeable battery, and at least one of the user interface and the patient monitor includes a power source for providing power to the sensor electronics for recharging the at least one rechargeable battery; and wherein the sensor power supply continues to supply power to the sensor when the sensor electronics are not in communication with the user interface and the patient monitor.