Physiological measurement device
First Claim
Patent Images
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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Abstract
A sensor interface is configured to receive a sensor signal. A transmitter generates a transmit signal. A receiver receives the signal corresponding to the transmit signal. Further, a monitor interface is configured to communicate a waveform to the monitor so that measurements derived by the monitor from the waveform are generally equivalent to measurements derivable from the sensor signal.
1794 Citations
28 Claims
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1. A pulse oximetry system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable patient monitoring device comprising:
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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 processing arrangements 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 a receiver computing device configured to perform a second processing on the digital information included in the transmit signal to determine and display measurements of the physiological parameters including at least oxygen saturation, pulse rate, and perfusion index; and a battery configured to power the portable patient monitoring device including at least the one or more signal processing arrangements and the signal transmitter. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification