POLYMER MEMBRANES FOR CONTINUOUS ANALYTE SENSORS
1 Assignment
0 Petitions
Accused Products
Abstract
Devices and methods are described for providing continuous measurement of an analyte concentration. In some embodiments, the device has a sensing mechanism and a sensing membrane that includes at least one surface-active group-containing polymer and that is located over the sensing mechanism. The sensing membrane may have a bioprotective layer configured to substantially block the effect and/or influence of non-constant noise-causing species.
-
Citations
28 Claims
-
1-20. -20. (canceled)
-
21. A system for measurement of an analyte concentration, the system comprising:
-
an implantable sensor configured to measure in vivo a signal indicative of an analyte concentration in a host, wherein the sensor further comprises a membrane located over the sensor; a processor configured to process sensor data; and a user interface configured to display information corresponding to sensor data; wherein, over a sensor session length of from 3 to 7 days, the system is configured to; provide a level of accuracy corresponding to a first mean absolute relative difference value at analyte concentrations of from 40 mg/dL to 80 mg/dL, wherein one or more reference measurements used to calculate the first mean absolute relative difference are determined by analysis of blood; and provide a level of accuracy corresponding to a second mean absolute relative difference value at analyte concentrations of from 40 mg/dL to 400 mg/dL, wherein one or more reference measurements used to calculate the second mean absolute relative difference are determined by analysis of blood; and wherein the first mean absolute relative difference value is less than or equal to the second mean absolute relative difference value, wherein the first mean absolute relative difference value is less than 10% over the sensor session, wherein the second absolute relative difference value is less than 10% over the sensor session. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
-
Specification