Medical devices and methods

  • US 10,136,816 B2
  • Filed: 08/31/2010
  • Issued: 11/27/2018
  • Est. Priority Date: 08/31/2009
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • an analyte sensor configured to be in fluid contact with bodily fluid under a skin surface;

    sensor electronics including a memory, the sensor electronics operatively coupled to the analyte sensor to receive signals generated by the analyte sensor and to log data in the memory corresponding to the received signals generated by the analyte sensor, and further configured to detect a transmitted query; and

    a display device configured for data communication with the sensor electronics, the display device comprising;

    a storage device having stored therein one or more routines;

    a processing unit operatively coupled to the storage device and configured to retrieve the stored one or more routines for execution;

    a data transmission component operatively coupled to the processing unit and configured to transmit data based at least in part on the one or more routines executed by the processing unit; and

    a data reception component operatively coupled to the processing unit and configured to receive analyte related data from the sensor electronics and to store the received analyte related data in the storage device;

    wherein the data transmission component is programmed to transmit a query to the sensor electronics;

    wherein the data reception component receives the analyte related data from the sensor electronics in response to the transmitted query when the sensor electronics transitions from a low power state to a fully operational state in response to detection of the query from the data transmission component by the sensor electronics; and

    wherein the sensor electronics is configured to overwrite the logged data in the memory prior to an expiration of a life of the analyte sensor with new data corresponding to signals obtained from the analyte sensor after the expiration of the analyte sensor life, the sensor electronics configured to communicate to the data reception component of the display device the analyte related data that includes the logged data in the memory including the new data corresponding to the signals obtained from the analyte sensor after the expiration of the analyte sensor life.

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