Analyte sensor

• US 7,640,048 B2
• Filed: 02/22/2006
• Issued: 12/29/2009
• Est. Priority Date: 07/13/2004
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Dobbles, J. Michael, Brister, Mark
• Primary Examiner(s): Mallari; Patricia C
• Application Number:
  US11/360,252
• Publication Number:
  US 20060183984A1
• Time in Patent Office: 1,406 Days
• Field of Search: 600/347, 600/365
• US Class Current: 600/345
• 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 2560/028 Arrangements to prevent overuse, e.g. by counting the number of uses
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• 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 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• 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 5/6832 using adhesives A61B5/259 takes precedence
• CPC Class Codes: A61B 5/6833 Adhesive patches
• 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
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61L 2/12 Microwaves
• CPC Class Codes: A61L 2/206 : Ethylene oxide
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
• CPC Class Codes: Y10T 29/49004 : including measuring or testing of device or component part

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 method for distributing and controlling use of an implantable sensor system comprising reusable and single-use parts, the method comprising:

providing a single-use device associated with the sensor system;

providing information associated with the single-use device;

determining information indicative of sensor insertion into a host'"'"'s tissue or information indicative of sensor removal from the host'"'"'s tissue; and

providing a reusable device associated with a sensor system, wherein the reusable device is configured to provide sensor information responsive to receipt of the information associated with the single-use device, wherein the single-use device comprises an analyte sensor, and wherein the information associated with the single-use device comprises sensor insertion information configured to enable the sensor system to control a number of sensor insertions by using a number of sensor initializations or a number of iterations of sensor duration.

2. The method of claim 1, wherein the reusable device comprises a receiver configured to receive sensor information.

3. The method of claim 1, wherein the reusable device comprises sensor electronics configured to releasably mate with the single-use device.

4. The method of claim 1, wherein providing a single-use device comprises providing a plurality of single-use devices.

5. The method of claim 1, wherein the single-use device comprises an analyte sensor configured to measure a concentration of an analyte in a host.

6. The method of claim 5, wherein the analyte sensor is a glucose sensor.

7. The method of claim 5, wherein the analyte sensor is configured for insertion into subcutaneous tissue.

8. The method of claim 5, wherein the analyte sensor is configured to be in fluid communication with the host'"'"'s circulatory system.

9. The method of claim 1, wherein the reusable device is configured to receive a key via manual entry.

10. The method of claim 1, wherein the reusable device is configured to wirelessly receive a key.

11. The method of claims 9 or 10, wherein the key comprises sensor duration information configured to enable the sensor system to control an amount of time over which information is obtained from the single-use device or is displayed by the reusable device.

12. The method of claim 1, further comprising inserting the single-use device into a host, wherein the single-use device comprises an analyte sensor.

13. The method of claim 1, further comprising obtaining sensor information from the sensor system by measurement of analyte information, digitalizing of sensor information, transmission of sensor information, receiving of sensor information, storing of sensor information, processing of sensor information, or displaying of sensor information.

14. The method of claim 12, wherein the analyte sensor is a transcutaneous analyte sensor configured for insertion into subcutaneous tissue.

15. The method of claim 12, wherein the analyte sensor is configured to be in fluid communication with the host'"'"'s circulatory system.