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Intermittent operating battery-less wireless sensor and pulse oximeter

  • US 9,877,651 B2
  • Filed: 03/13/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 03/17/2014
  • Status: Active Grant
First Claim
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1. A medical sensor, comprising:

  • a battery-less power source configured to store energy;

    a charging device configured to harvest energy from body heat, body movement, or ambient light and to charge the power source;

    a charging control circuit configured to determine a power source energy level of the power source;

    a sensing component configured to perform an intermittent measurement to obtain data related to one or more physiological parameters from a patient;

    wireless communication circuitry configured to wirelessly transmit at least the data related to the one or more physiological parameters; and

    a processing device configured to determine if the power source energy level is sufficient to perform the intermittent measurement or to wirelessly transmit at least the data related to the one or more physiological parameters and to determine whether to perform the intermittent measurement or to wirelessly transmit at least the data related to the one or more physiological parameters based upon the power source energy level and a prioritization of the intermittent measurement relative to wireless transmission of at least the data related to the one or more physiological parameters.

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