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Optical trigger for therapy delivery

  • US 9,999,774 B2
  • Filed: 04/23/2015
  • Issued: 06/19/2018
  • Est. Priority Date: 05/06/2014
  • Status: Active Grant
First Claim
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1. A medical device system for automatically delivering a therapy, comprising:

  • a first device configured to sense a physiological signal and generate a control signal in response to the physiological signal;

    an optical emitting device controlled by the first device to emit an optical trigger signal in response to receiving the control signal from the first device, wherein the optical trigger signal is not a physiological signal; and

    a second device comprising a light detector for receiving light incident on the second device and configured to detect the optical trigger signal emitted by the optical emitting device by producing a voltage signal in response to the light incident on the second device, comparing the voltage signal to a trigger detection threshold, and detecting the optical trigger signal in response to the voltage signal being greater than the trigger detection threshold, the second device configured to deliver a therapy to a patient in response to the light detector detecting the optical trigger signal.

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