Transcutaneous analyte sensor

• US 8,663,109 B2
• Filed: 03/29/2010
• Issued: 03/04/2014
• Est. Priority Date: 07/13/2004
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Brister, Mark, Masterson, Steve, Dobbles, J. Michael, Mensinger, Michael Robert, Saint, Sean, Kamath, Apurv Ullas
• Primary Examiner(s): D'ANGELO, MICHAEL J
• Application Number:
  US12/749,139
• Publication Number:
  US 20100185075A1
• Time in Patent Office: 1,436 Days
• Field of Search: 600/309, 600/316, 600345-347, 600/365, 435/4, 435/14, 436/68, 422/50, 422420-429, 20440301-40315, 702/23, 604 64- 66
• US Class Current: 600/365
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: A61B 5/1451 for interstitial fluid
• CPC Class Codes: A61B 5/14517 for sweat
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/68335 including release sheets or liners
• CPC Class Codes: A61B 5/6848 Needles
• CPC Class Codes: A61B 5/6849 in combination with a needle set
• CPC Class Codes: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00

Abstract

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.

Claims

1. A sensor system for measuring an analyte in a host, the system comprising:

a sensor configured to measure an analyte concentration in a host;

sensor electronics operably connected to the sensor, wherein the sensor electronics are configured to produce a data stream indicative of the analyte concentration in the host and an RFID chip configured to identify the sensor and to transmit a signal including the identifier and the data stream to a receiver; and

a receiver configured to receive transmissions from the sensor electronics, to download the data stream, and to control the user interface by displaying the analyte concentration from the sensor, wherein the receiver is programmed to confirm sensor insertion prior to display of the analyte concentration, and wherein the receiver is configured to identify the sensor insertion based on the data stream.

2. The sensor system of claim 1, wherein said data stream comprises sensor implantation data.

3. The sensor system of claim 1, wherein the sensor electronics are programmed with an identification key comprising sensor information.

4. The sensor system of claim 3, wherein the sensor information comprises calibration information.

5. The sensor system of claim 3, wherein the sensor information comprises temperature information.

6. The sensor system of claim 3, wherein the sensor electronics are programmed to transmit the sensor information to the receiver.

7. The sensor system of claim 1, wherein the sensor electronics are programmed to store the data stream.

8. The sensor system of claim 7, wherein the sensor electronics are programmed to transmit the stored and real time data streams.

9. The sensor system of claim 8, wherein the analyte concentration displayed by the receiver includes the analyte concentrations from the stored the real time data streams received from the sensor electronics.