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Physiological measurement device

  • US 10,219,706 B2
  • Filed: 10/11/2018
  • Issued: 03/05/2019
  • Est. Priority Date: 03/25/2002
  • Status: Expired due to Term
First Claim
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1. A pulse oximetry system comprising:

  • a receiving computing device comprising;

    a signal receiver; and

    a display capable of displaying physiological parameter and waveform data; and

    a portable patient monitoring device comprising;

    a light emitter configured to emit light into a tissue site a patient;

    a light detector configured to output a sensor signal responsive to at least a portion of the emitted light after attenuation by tissue of the tissue site;

    at least one user input mechanism configured to at least enable activation of the portable patient monitoring device in response to inputs from a user;

    one or more signal processors configured to;

    cause activation of the light emitter to emit light;

    receive the sensor signal from the light detector, the sensor signal useable to determine physiological parameters including at least oxygen saturation, pulse rate, and perfusion index of the patient;

    perform a first processing of the sensor signal, wherein the first processing includes at least generating digital information usable to determine the physiological parameters and at least partially processing the sensor signal for parameter determination purposes; and

    generate a transmit signal that includes at least the digital information;

    a signal transmitter configured to wirelessly transmit the transmit signal to the receiving computing device; and

    a battery configured to power the portable patient monitoring device including at least the one or more signal processors and the signal transmitter, wherein the receiving computing device is configured to;

    receive the transmit signal from the portable patient monitoring device;

    perform a second processing on the digital information included in the transmit signal to determine measurements of the physiological parameters including at least oxygen saturation, pulse rate, and perfusion index; and

    cause display, on the display of the receiving computing device, of the measurements of the physiological parameters of the patient.

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