Analyte monitoring device and methods of use

摘要

An analyte monitor includes a sensor, a sensor control unit, and a display unit. The sensor has, for example, a substrate, a recessed channel formed in the substrate, and conductive material disposed in the recessed channel to form a working electrode. The sensor control unit typically has a housing adapted for placement on skin and is adapted to receive a portion of an electrochemical sensor. The sensor control unit also includes two or more conductive contacts disposed on the housing and configured for coupling to two or more contact pads on the sensor. A transmitter is disposed in the housing and coupled to the plurality of conductive contacts for transmitting data obtained using the sensor. The display unit has a receiver for receiving data transmitted by the transmitter of the sensor control unit and a display coupled to the receiver for displaying an indication of a level of an analyte. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.

主权项

1. A computer system, comprising:
a sensor data receiving module that receives sensor data from a glucose sensor via a receiver, including one or more sensor data points; a reference data receiving module that receives reference data from a reference glucose monitor, including one or more reference data points; a first processor module that relates the reference data to the sensor data; and a second processor module that determines a change of at least one characteristic of the glucose sensor, determines a rate of change of a glucose level based at least in part on the received sensor data, and determines if calibration is appropriate based at least in part on the evaluation in the change in the characteristic and if the determined rate of change of the glucose level is less than a threshold amount, wherein the second processor module evaluates the one or more sensor data points from the glucose sensor.