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Pulse Oximeter

Pulse Oximeter-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Automated assessment of peripheral vascular condition
D. E. Hokanson, Inc.
August 03, 2017 - N°20170215746

An automated assessment of a patient's peripheral vascular condition includes using a pulse oximeter to generate at least a perfusion index relative to a limb or digit of the patient. Pressure is applied to the limb or digit, and while increasing or decreasing the pressure, a change in the perfusion index is determined. The change is indicative of a cessation ...
Method and apparatus for assessing respiratory distress
S & V Siu Associates, Llc
July 27, 2017 - N°20170209074

A method and apparatus are disclosed for assessing a respiratory function from plethysmography data obtainable, for example, from a pulse oximeter. A pulsatile waveform obtained from pleth data is processed to obtain a second waveform extending over a over multiple respiratory cycles and representing respiration-related variations in a pulse-beat area defined by the pulsatile waveform. The second waveform is analyzed ...
System and method for providing transitional monitoring along sedation continuum
Ethicon Endo Surgery, Inc.
June 29, 2017 - N°20170181694

A transition monitor receives data from a variety of sensors that provide data indicative of the level of sedation of a patient, such as a bispectral index monitor, automated responsiveness monitor, pulse oximeter, or other device. As data is received from a sensor device, the transition monitor will apply a weighting calculation and algorithm to the received value in order ...
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Reflectance based pulse oximetry systems and methods
The Regents Of The University Of California
June 08, 2017 - N°20170156651

Pulse oximeter devices include a first light emitting element that emits red light, a second light emitting element that emits green light or ir light; and a sensor element that detects red and green (or ir) light and that outputs signals representing detected red and green (or ir) light. The pulse oximeter device further includes a flexible substrate, wherein the ...
System and method for measuring hemoglobin level
The Regents Of The University Of California
June 08, 2017 - N°20170156649

A hemoglobin measuring device comprising a controller, a first oxygen sensor, a second oxygen sensor, a first volume flow meter, and a second volume flow meter. The controller is operable to receive data from each of the first and second oxygen sensors, the first and second volume flow meters, and a pulse oximeter associated with a patient. The controller is ...
Pulse oximeter
Pioneer Corporation
May 04, 2017 - N°20170119293

A pulse oximeter (1, 2) includes a first light emitter (11) configured to generate first light, a second light emitter (12) configured to generate second light with a different wavelength from that of the first light, and a light receiver (13) configured to receive each of first return light of the first light from a living body and second return light of the second light ...
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Method and system for assessing learning experience of a person
Tata Consultancy Services Limited
April 13, 2017 - N°20170103668

A method and system is provided for assessing the learning experience of the person by monitoring the mental state of the person. The method involves measuring the brain signal, skin conductance using gsr device, and heart rate variability using the pulse oximeter. These physiological signals are measured when the person is performing an activity such as the modified stroop test. ...
Bone-conductive arousal induction apparatus
Tata Consultancy Services Limited
March 30, 2017 - N°20170087050

The present invention provides an apparatus and methods to deliver audible acoustic sound to the brain through bone conduction and to terminate snoring and sleep apnea. The apparatus comprises a control module and a device that measures signs of the snoring and the sleep apnea and generates the audible acoustic sound to arouse a subject. The device is reversibly attachable ...
Biological information measurement device and pulse oximeter
Konica Minolta, Inc.
March 30, 2017 - N°20170086722

A biological information measurement device may include a body; a probe unit; and a connection portion which electrically connects the body and the probe unit. The body may include a casing in which a battery and an electrical circuit are incorporated; and a first fitting portion which is attached to the casing and worn on a first fitted portion including ...
Wearable biometric measurement device
Huami Inc.
March 16, 2017 - N°20170071483

A wearable biometric measurement device includes a ring body having interior and exterior surfaces, an electrocardiogram component including first and second electrodes wherein a single lead electrocardiogram is formed upon contact with the first electrode and the second electrode, a pulse oximeter component including a light emitter and a photodetector wherein the photodetector receives one or more signals transmitted by ...
Sensor for ventricular and outflow tract obstruction
Huami Inc.
March 09, 2017 - N°20170065190

Systems and methods for identifying lvot obstruction in a non-invasive manner are provided. The systems and methods include obtaining a plethysmographic signal from a patient, for example from a pulse oximeter. A waveform is generated from the signal. The signal is processed and analyzed to determine whether the patient suffers from lvot obstruction.
Method and device for non-invasive blood pressure measurement
Ecole Polytechnique Federale De Lausanne (epfl)
February 16, 2017 - N°20170042434

A system for measuring blood pressure of a user that comprises an electrocardiogram (ecg) circuit with at least two ecg electrodes configured to obtain an electrical activity of a heart of the user by measuring the electrical signals detected at the at least two ecg electrodes as an electrocardiogram waveform, and a pulse oximeter circuit configured to obtain a pulse ...
Automated cchd screening and detection
Masimo Corporation
January 19, 2017 - N°20170014084

Automated critical congenital heart defect (“cchd”) screening systems and processes are described. A caregiver may be guided to use a single or dual sensor pulse oximeter to obtain pre- and post-ductal blood oxygenation measurements. A delta of the measurements indicates the possible existence or nonexistence of a cchd. Errors in the measurements are reduced by a ...
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Automated cchd screening and detection
Masimo Corporation
January 12, 2017 - N°20170007134

Automated critical congenital heart defect (“cchd”) screening systems and processes are described. A caregiver may be guided to use a single or dual sensor pulse oximeter to obtain pre- and post-ductal blood oxygenation measurements. A delta of the measurements indicates the possible existence or nonexistence of a cchd. Errors in the measurements are reduced by a ...
Comprehensive body vital sign monitoring system
Cloud Ds, Inc., A Corporation Of Delaware
January 05, 2017 - N°20170000359

Ambulatory patient wearable vital sign monitoring system, often comprising a plurality of ambulatory patient wearable ecg sensors, pulse oximeters, and oscillometric blood pressure monitors, configured to transmit sensor data to a wearable computerized device such as a smartphone. The smartphone will typically be configured to obtain the patient's health history and other health status information, often by querying the patient. ...
Systems and methods for sensor calibration in photoplethysmography
Covidien Lp
December 08, 2016 - N°20160354017

Various methods and systems for obtaining calibration coefficients for pulse oximeter sensors are provided. A method includes passing current through a light emitting element in an oximeter sensor and measuring, utilizing a first voltage sensing lead, a first voltage present at an electrical input of the light emitting element. The method also includes measuring, utilizing a second voltage sensing lead, ...
Pacemaker threshold testing based on pulse oximeter output curve
Covidien Lp
December 01, 2016 - N°20160346551

Methods of threshold testing and setting a voltage on an artificial pacemaker based on the output of a plethymograph, such as an oximeter, are disclosed herein. This is accomplished by determining blood volume in a limb or area of the body, and its change over time. As voltage is decreased in the pacemaker, a change in blood volume of the ...
Multiple sensor wireless wearable pulse oximeter-based device
Covidien Lp
October 27, 2016 - N°20160310085

A multiple sensor wireless wearable device measuring oxygen saturation and/or heart rate includes a single housing, two or more sensors, each having a pick up beam, an alarm generator, and a timer generator. The two or more sensors, the alarm generator, and the timer generator are all housed inside the single housing, and the two or more sensors are ...
Method of reducing motion artifacts on wearable optical sensor devices
Apple Inc.
October 13, 2016 - N°20160296174

A ppg signal may be obtained from a pulse oximeter, which employs a light emitter and a light sensor to measure the perfusion of blood to the skin of a user. However, the signal may be compromised by noise due to motion artifacts. That is, movement of the body of a user may cause a gap between the tissue of ...
Motion artifact cancelation
Apple Inc.
October 13, 2016 - N°20160296173

A photoplethysmogram (ppg) signal may be obtained from a pulse oximeter, which employs a light emitter and a light sensor to measure the perfusion of blood to the skin of a user. However, the signal may be compromised by noise due to motion artifacts. That is, movement of the body of a user may cause the skin and vasculature to ...
User identification system based on plethysmography
Apple Inc
October 13, 2016 - N°20160296142

A light emitter and light sensor pair can be used to determine one or more characteristics of a user's vasculature. For example, a pulse oximeter employs a light emitter and a light sensor to measure the percentage of oxygenated blood in a subject. In examples of the present disclosure, light emitters and light receive motion sensors can be used to ...
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