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Using physiological sensor data with an implantable medical device

  • US 8,972,013 B2
  • Filed: 03/25/2011
  • Issued: 03/03/2015
  • Est. Priority Date: 10/28/2005
  • Status: Active Grant
First Claim
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1. An implantable medical system comprising:

  • an implantable medical device (IMD) operative to provide a first electrical signal;

    an electrode coupleable to the IMD, the electrode operative to deliver the first electrical signal from the IMD to a neural structure to cause afferent nerve impulses or afferent and efferent nerve impulses to propagate along the neural structure away from the electrode;

    a sensor coupleable to the IMD, the sensor operative to sense a physiological parameter, wherein the physiological parameter includes at least one of a neurotransmitter breakdown product parameter, a neuropeptide parameter, or an amino acid parameter; and

    a controller operative to;

    change a signal parameter of the first electrical signal based upon the physiological parameter to generate a second electrical signal;

    apply the second electrical signal to the neural structure, wherein the signal parameter includes at least one of a pulse width, a frequency, a polarity, or an amplitude, and wherein the first and second electrical signals are applied to the neural structure to treat depression; and

    in response to the applied first and second electrical signals, determine a severity of the depression based on the sensed physiological parameter.

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