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Communication protocol improvement to recover data from a continuous glucose monitor

  • US 9,226,702 B2
  • Filed: 10/12/2012
  • Issued: 01/05/2016
  • Est. Priority Date: 10/12/2012
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method for communicating data between a continuous glucose monitor and a handheld diabetes manager, comprising:

  • constructing, by a continuous glucose monitor, a data packet for transmission during a current time interval in a series of sequential time intervals, where the data packet includes blood glucose measures taken by the continuous glucose monitor during the current time interval;

    resetting, by the continuous glucose monitor, a counter upon receiving an acknowledgement of receipt of a data packet transmitted during the preceding time interval;

    incrementing, by the continuous glucose monitor, the counter upon failing to receive an acknowledgement of receipt of a data packet transmitting during a time interval preceding the current time interval;

    appending, by the continuous glucose monitor, blood glucose measures taken by the continuous glucose measure during the preceding time interval to the data packet when the counter is less than a threshold;

    transmitting, by the continuous glucose monitor, the data packet at a first data rate via a wireless data link to the handheld diabetes manager when the counter is less than the threshold;

    storing, by the continuous glucose monitor, blood glucose measures taken by the continuous glucose monitor during the current time interval and the preceding time interval in a non-volatile memory, when the counter is equal to or exceeds the threshold and upon failing to receive an acknowledgement of receipt of a data packet transmitting; and

    subsequent to storing the blood glucose measures in the non-volatile memory, transmitting, by the continuous glucose monitor, the blood glucose measures stored in the non-volatile memory at a second data rate higher than the first data rate.

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