Systems and methods for processing sensor data

Patent metadata

Field	Value
Publication number	US-9901307-B2
Application number	US-201314144424-A
Country	US
Kind code	B2
Filing date	Dec 30, 2013
Priority date	Dec 17, 2007
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

Systems and methods for processing sensor data are provided. In some embodiments, systems and methods are provided for calibration of a continuous analyte sensor. In some embodiments, systems and methods are provided for classification of a level of noise on a sensor signal. In some embodiments, systems and methods are provided for determining a rate of change for analyte concentration based on a continuous sensor signal. In some embodiments, systems and methods for alerting or alarming a patient based on prediction of glucose concentration are provided.

First claim

What is claimed is:

1. A system for processing continuous analyte sensor data, comprising:
a continuous analyte sensor configured to continuously measure a concentration of analyte in a host; and
a computer system configured to receive sensor data from the continuous analyte sensor, to determine a level of reliability of the sensor data, the level of reliability of the sensor data based at least in part on transient non-glucose related signal artifacts in the sensor data, and to provide insulin delivery instructions and/or insulin therapy instructions, based on a comparison of the determined level of reliability with one or more thresholds, to automatically control an insulin pump.

2. The system of claim 1 , wherein the level of reliability is selected from two or more levels of reliability.

3. The system of claim 1 , wherein the level of reliability is selected from three or more levels of reliability.

4. The system of claim 1 , wherein the sensor data comprises one or more sensor data points, and wherein the level of reliability is further based on a level of resolution, corresponding to time, of the one or more sensor data points.

5. The system of claim 1 , wherein the level of reliability is further based on a level of confidence in the sensor data.

6. The system of claim 1 , wherein the computer system is configured to provide insulin delivery instructions and/or insulin therapy instructions using a transmission.

7. The system of claim 1 , wherein the computer system is configured to provide insulin delivery instructions and/or insulin therapy instructions by determining when to provide a more or less conservative insulin delivery instruction and/or when to provide a more or less conservative insulin therapy instruction.

8. The system of claim 1 , wherein the computer system is configured to provide insulin delivery instructions and/or insulin therapy instructions by determining when to trigger a failsafe in a closed loop insulin delivery system.

9. The system of claim 1 , wherein the computer system is configured to provide insulin delivery instructions and/or insulin therapy instructions comprising requesting user interaction in a closed loop insulin delivery system.

Assignees

• Dexcom Inc

Inventors

• Kamath Apurv Ullas
• Mensinger Michael Robert
• Li Ying
• Mahalingam Aarthi
• Dobbles John Michael

Classifications

• G16H20/10

  relating to drugs or medications, e.g. for ensuring correct administration to patients · CPC title

• A61B5/0031

  Implanted circuitry · CPC title

• A61B5/01

  Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20) · CPC title

• A61B5/743

  Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots · CPC title

• A61B2560/04

  Constructional details of apparatus · CPC title