US 10,856,750 B2Granted

Spot check measurement system

AssigneeMasimo Corporation

InventorsKeith Ward Indorf, Sebastian T. Frey, Bilal Muhsin, Prashanth Rengaswamy Chandran, Mihir Chinchalkar, Prashanth Iyengar

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Abstract

A portable spot-check system configured to assess the validity of a measured physiological parameter. The spot-check device can take into consideration a variety of factors to determine whether a valid measurement exists. For instance, the considerations can include signal stability, interference, signal IQ, patient movement, sensor position, timing of that measurement, comparison to previous or acceptable measurements, cancellation of measurement by the patient, confidence of the measurement, etc. The spot-check device can track a number of valid measurements. In some instances, the spot-check device is configured to provide a specified number of available measurements. If a valid measurement is recorded, the spot-check device can decrement the remaining number of available measurements.

Claims15

Dependent claims

A pulse oximetry monitor configured to perform a spot-check measurement of a physiological parameter, the monitor comprising:

a driver circuit that drives one or more emitters of a physiological sensor at multiple wavelengths of light to cause the one or more emitters to transmit the multiple wavelengths of light through body tissue of a patient;
a hardware processor in communication with the physiological sensor, the hardware processor configured to:
determine a number of remaining spot-check credits;
in response to a determination that the number of remaining spot-check credits satisfies a threshold, enable selection of a spot-check measurement;
measure, from a physiological signal, a plurality of values of a physiological parameter;
upon detecting that the physiological sensor has been detached from the patient, select one of the plurality of values as the spot-check measurement;
assess a validity of the spot-check measurement;
based at least in part on a determination that the spot-check measurement is valid, update the number of remaining spot-check credits;
and
output the spot-check measurement audibly or to a display.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/965,364Filed 27 Apr 2018 · us provisional application
Priority: 28 Apr 2017
Published: US 2018/0310822 A11 Nov 2018
Granted: 8 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

A61B 5/7275
Specific aspects of physiological measurement analysis: determining trends in physiological measurement data; Predicting development of a medical…
A61B 5/14551
Using optical sensors, e.g. spectral photometrical oximeters: for measuring blood gases
A61B 5/14552
For measuring blood gases: details of sensors specially adapted therefor
A61B 5/6843
Specially adapted to be attached to or worn on the body surface: monitoring or controlling sensor contact pressure

Family

Application62/492,083Us provisional application · filed 28 Apr 2017
Application62/535,168Us provisional application · filed 20 Jul 2017
Application62/564,879Us provisional application · filed 28 Sep 2017
Application62/575,231Us provisional application · filed 20 Oct 2017
US 2018/0310822 A1Pre-grant publication · published 1 Nov 2018
US 10,856,750 B2This patent

From the US filing history. Foreign family members aren’t listed.