ANALYTE SENSOR

• US 20140213869A1
• Filed: 04/18/2014
• Published: 07/31/2014
• Est. Priority Date: 10/04/2006
• Status: Abandoned Application

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Brister, Mark, Saint, Sean, Swanson, Vance, Quintana, Nelson
• Application Number:
  US14/256,716
• Publication Number:
  US 20140213869A1
• Time in Patent Office: Days
• US Class Current: 600/347
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• 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 5/412 Detecting or monitoring sepsis
• CPC Class Codes: A61B 5/6848 Needles
• CPC Class Codes: A61B 5/6849 in combination with a needle set
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/16804 Flow controllers
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

Systems and methods of use for continuous analyte measurement of a host'"'"'s vascular system are provided. In some embodiments, a continuous glucose measurement system includes a vascular access device, a sensor and sensor electronics, the system being configured for insertion into a host'"'"'s peripheral vein or artery.

Claims

1. A system for measuring glucose in a host and delivering medication to the host, the system comprising:

a catheter configured for insertion into a host and configured to deliver medication to the host, wherein the catheter comprises an exterior surface;

a continuous glucose sensor disposed at least partially on the exterior surface of the catheter, wherein the continuous glucose sensor is configured to generate sensor data indicative of glucose concentration; and

sensor electronics operatively connected to the continuous glucose sensor, wherein the sensor electronics are configured to determine a glucose concentration.

2. The system of claim 1, wherein the continuous glucose sensor is integrally formed on the exterior surface of the catheter.

3. The system of claim 1, wherein the continuous glucose sensor is electroplated onto the exterior surface of the catheter.

4. The system of claim 1, wherein the continuous glucose sensor comprises a working electrode and a membrane system covering at least a portion of the working electrode.

5. The system of claim 1, wherein the working electrode comprises an exposed electroactive surface.

6. The system of claim 1, wherein the catheter is configured to be operatively connected to an infusion pump.

7. The system of claim 1, wherein in response to sensor data received from the continuous glucose sensor, the sensor electronics are configured to communicate a therapy recommendation to the infusion pump, wherein the therapy recommendation comprises information relating to insulin amount.

8. The system of claim 1, wherein the continuous glucose sensor is configured to be used subcutaneously.

9. The system of claim 1, wherein the sensor electronics are configured to substantially continuously determine the glucose concentration.