Patent ID: 8965477
Filing Date: 2015-02-24
Classification: A61B

Abstract:
1. A system for determining real time analyte concentration, comprising: an analyte sensor having a portion in fluid contact with an interstitial fluid under a skin layer; an on-body electronics including a housing coupled to the analyte sensor and configured for positioning on the skin layer, the on-body electronics housing including a plurality of electrical contacts provided on the housing; and a data analysis unit having a data analysis unit housing and including a plurality of probes provided on the data analysis unit housing, each of the plurality of probes on the data analysis unit housing configured to electrically couple to the respective one of the plurality of the electrical contacts on the on-body electronics housing when the data analysis unit is positioned in physical contact with the on-body electronics; wherein the on-body electronics comprise a first and second resistor-capacitor (RC) pair in series and electrically coupled to the analyte sensor such that a first voltage across the first RC pair represents a real-time current analyte concentration level, a second voltage across the second RC pair represents an average analyte concentration level over a period of time, and a difference between the first and second voltages represents a real-time trending of the analyte concentration level; and wherein one or more signals on the plurality of probes on the data analysis unit housing comprises the first voltage and the second voltage and corresponds to one or more of a substantially real time monitored analyte concentration level, monitored analyte concentration level over a predetermined time period, or a rate of change of the monitored analyte concentration level, or one or more combinations thereof.