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Medical device system having an implanted medical device and an external device

  • US 9,486,153 B2
  • Filed: 02/01/2016
  • Issued: 11/08/2016
  • Est. Priority Date: 06/17/2010
  • Status: Active Grant
First Claim
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1. A medical device system, the system comprising:

  • an implanted medical device, andan external device comprising a transceiver, a random access memory, and a processor coupled to the transceiver and the random access memory, wherein the processor is configured to;

    periodically activate wireless communication circuitry in an attempt to communicate a plurality of proximity test signals with the implanted medical device;

    for each of the plurality of activations, determine whether a proximity signal has been received from the implanted device within a certain time after the activation, thereby generating a plurality of proximity test receipt results;

    apply a test to the plurality of proximity test receipt results to determine whether a proximity failure condition exists, thereby generating a plurality of proximity test results;

    operative when a proximity failure condition exists, take at least one of the following actions;

    store information regarding the proximity failure in the random access memory or send a proximity test failure condition notification; and

    when the proximity failures in the random access memory meet a selected first proximity test criterion, the processor is further configured to send notification to the patient.

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