Device and method for determining analyte levels

• US 7,835,777 B2
• Filed: 12/22/2009
• Issued: 11/16/2010
• Est. Priority Date: 03/04/1997
• Status: Expired due to Fees

Abstract

Devices and methods for determining analyte levels are described. The devices and methods allow for the implantation of analyte-monitoring devices, such as glucose monitoring devices, that result in the delivery of a dependable flow of blood to deliver sample to the implanted device. The devices comprise a unique microarchitectural arrangement in the sensor region that allows accurate data to be obtained over long periods of time.

Claims

1. A system for processing sensor data from a continuous analyte sensor, comprising:

a sensor comprising one or more electrodes configured for implantation in a subcutaneous tissue of a host, wherein the sensor is configured to continuously measure an analyte concentration in the host, whereby sensor data indicative of the subcutaneous analyte concentration is obtained; and

an electronic system operably connected to the sensor and configured to calibrate the sensor data in real-time using a reference value determined by analysis of blood, wherein the electronic system is configured to calibrate the sensor data by correlating the reference value with a time-spaced sensor data value of the sensor data.

2. The system of claim 1, wherein the electronic system is configured to determine trends in analyte concentration.

3. The system of claim 1, wherein the system is configured to provide a substantially stable measurement of the analyte concentration in the host, wherein at least 95% of calibrated sensor data valu