ANALYTE SENSOR
The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.
1 - 18 . (canceled)
19 . A method for monitoring glucose concentration in a biological sample of a host, the method comprising:
producing a data stream indicative of a glucose concentration of a host using a continuous glucose sensor, wherein at least a portion of the continuous glucose sensor is configured for transcutaneous insertion through a skin of the host;
applying sensor data associated with the data stream to a prospectively-generated conversion function to prospectively convert, using a first processor, the sensor data to generate real-time calibrated glucose concentration information;
triggering a first alert responsive to the real-time calibrated glucose concentration information;
applying the sensor data to a retrospectively-generated conversion function to retrospectively convert, using a second processor, the sensor data associated with the data stream to generate historical calibrated glucose concentration information;
triggering a second alert responsive to the historical calibrated glucose concentration information; and
selectively displaying a graphical representation of the real-time calibrated glucose concentration or the historical calibrated glucose concentration information on a display device.
20 . The method of claim 19 , wherein the continuous glucose sensor comprises a sensing region and a sensing membrane located over the sensing region.
21 . The method of claim 19 , further comprising wirelessly transmitting and receiving data between a first device and the display device.
22 . The method of claim 21 , wherein the first processor is incorporated in the first or the display device.
23 . The method of claim 19 , wherein the display device is configured to establish a communication link with a first device responsive to a user initiation.
24 . The method of claim 19 , wherein the second processor is incorporated in the first or the display device.
25 . The method of claim 24 , wherein the first device is an on-skin device and the display device is a hand-held receiver.
26 . The method of claim 25 , wherein the hand-held receiver is a cell phone.
27 . The method of claim 19 , wherein the display device is configured to transmit a request to a first device, and wherein the first device is configured to transmit the sensor data to the display device in response to the first device receiving the request.
28 . The method of claim 19 , further comprising downloading software, wherein the software comprises computer-readable instructions that, when executed by the first or the second processor, perform the retrospective conversion and the displaying.
29 . The method of claim 19 , wherein the retrospectively-generated conversion function is based on a change in sensitivity of the continuous glucose sensor not accounted for in the prospectively-generated conversion function.