Analyte sensor

• US 20070197889A1
• Filed: 02/22/2006
• Published: 08/23/2007
• Est. Priority Date: 02/22/2006
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Brister, Mark, Brauker, James, Saint, Sean, Swanson, Vance
• Granted Patent: US 8,133,178 B2
• Time in Patent Office: Days
• US Class Current: 600/347
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/14865 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 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/72 Signal processing specially adapted for physiological signals or for diagnostic purposes character recognition, recognising digital ink, document-oriented image-based pattern recognition G06V30/00; recognition or understanding of postal images G06V30/424
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

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 device configured for placement on a skin surface of a host, the device comprising:

a sensor configured for transcutaneous insertion into a host and operatively connected to sensor electronics for processing data obtained from the sensor; and

a housing adapted for placement on a skin surface of the host and coupled to the sensor electronics, wherein at least one of the housing and the sensor electronics comprises a user interface configured to communicate information responsive to processed sensor data.

2. The device of claim 1, wherein the user interface comprises a screen configured to display at least one numerical value.

3. The device of claim 1, wherein the user interface comprises a screen configured to display trend information.

4. The device of claim 1, wherein the user interface comprises a screen configured to display graphical information.

5. The device of claim 1, wherein the user interface is configured to communicate information audibly.

6. The device of claim 1, wherein the user interface is configured to communicate information tactilely.

7. The device of claim 1, wherein the user interface is configured to provide information to the host in response to activation of a button.

8. The device of claim 1, wherein the sensor electronics are configured to alert the host when the sensor data is outside a predetermined boundary.

9. The device of claim 1, wherein the sensor electronics are configured to filter the sensor data.

10. The device of claim 1, wherein the sensor electronics are configured to calibrate the sensor data.

11. The device of claim 1, further comprising a receiver, wherein the receiver is configured to communicate with the sensor electronics.

12. The device of claim 11, wherein the receiver is configured to request information from the sensor electronics.

13. The device of claim 11, wherein the sensor electronics are configured to transmit sensor data responsive to a request by the receiver.

14. The device of claim 11, wherein the receiver and the sensor electronics are operatively connected by at least one connection selected from the group consisting of a cable, a radio frequency connection, an optical connection, an inductive coupling connection, an infrared connection, and a microwave connection.

15. The device of claim 1, wherein the sensor electronics are releasably attachable to the housing.

16. A transcutaneous glucose sensing device, the device comprising:

a glucose sensor configured for transcutaneous insertion through a skin of a host; and

an on-skin housing coupled to the sensor, wherein the on-skin housing is adhered to the skin, and wherein the on-skin housing comprises sensor electronics configured to process sensor data and to provide sensor data to the host via a user interface.

17. The transcutaneous glucose sensing device of claim 16, wherein the user interface is configured to provide sensor data by at least method selected from the group consisting of visually, audibly, and tactilely.

18. The transcutaneous glucose sensing device of claim 16, wherein the user interface is housed on or in the on-skin housing.

19. The transcutaneous glucose sensing device of claim 16, wherein the user interface is operatively connected to the on-skin housing via at least one wire.

20. The transcutaneous glucose sensing device of claim 19, wherein the user interface is configured to be worn on the host at a location remote from the on-skin housing.

21. The transcutaneous glucose sensing device of claim 16, wherein the user interface is configured to be worn on clothing of the host, and wherein the on-skin housing in configured to be worn on the skin of the host.

22. The transcutaneous glucose sensing device of claim 21, wherein the user interface is directly wired to the on-skin housing.

23. The transcutaneous glucose sensing device of claim 16, wherein the sensor electronics are releasably attachable to the on-skin housing.

24. A transcutaneous glucose sensor system, the system comprising:

a glucose sensor configured for transcutaneous insertion through skin of a host;

an on-skin device coupled to the sensor and comprising electronics configured to process data obtained from the sensor; and

a receiver remote from the on-skin device configured to request information from the on-skin device.

25. The system of claim 24, wherein the on-skin device is configured to provide sensor information indicative of a glucose value of the host by at least one method selected from the group consisting of visual, audible, and tactile.

26. The system of claim 24, wherein the on-skin device is configured to provide filtered sensor data by at least one method selected from the group consisting of visual, audible, and tactile.

27. The system of claim 24, wherein the on-skin device is configured to provide calibrated sensor data by at least one method selected from the group consisting of visual, audible, and tactile.