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Harald Kronberg, Helmut Leist: Apparatus and method for monitoring respiration. PPG, Andrew C Siminerio, Kenneth J Stachel, December 28, 1993: US05273036 (230 worldwide citation)

The apparatus for monitoring respiration comprises a photoplethysmographic sensor whose LED transmitter element(s) is/(are) excited by a monitoring unit with a specified control power and/or control signal sequence or frequency. By means of a signal processing unit, both the frequency and depth of r ...


2
Andreas Lubbertus Aloysius Johannes Dekker: Apparatus and method for monitoring respiration with a pulse oximeter. Datex Ohmeda, Marsh Fischmann & Breyfogle, March 23, 2004: US06709402 (168 worldwide citation)

An apparatus and method for monitoring a secondary physiological process through variations caused by the secondary process in an optical signal used to calculate values related to blood oxygen levels. In particular, the optical signal may be divided into distinct portions such that a portion more d ...


3
Andreas Lubbertus Aloysius Johannes Dekker: Apparatus and method for monitoring respiration with a pulse oximeter. Marsh Fischmann & Breyfogle, August 28, 2003: US20030163033-A1

An apparatus and method for monitoring a secondary physiological process through variations caused by the secondary process in an optical signal used to calculate values related to blood oxygen levels. In particular, the optical signal may be divided into distinct portions such that a portion more d ...


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Apparatus and Method for Monitoring Respiration Volumes and Synchronization of Triggering in Mechanical Ventilation by Measuring the Local Curvature of the Torso Surface. October 15, 2015: US20150289785-A1

The invention is related to a device and method for monitoring respiration, movements in mechanical ventilation in order to provide a non-pneumatic triggering variable for achieving patient-ventilator asynchrony and continuous measurement of tidal volumes. The method is based on measuring the curvat ...


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[ZH] 一种通过在躯体表面上从测量局部曲率以用于监控呼吸体积以及在机械通气中同步触发的设备和方法, [EN] Apparatus and method for monitoring respiration volumes and synchronization of triggering in mechanical ventilation by measuring the local curvature of the torso surface. June 24, 2015: CN142929065

[EN] The invention is related to a device and method for monitoring respiration, movements in mechanical ventilation in order to provide a non-pneumatic triggering variable for achieving patient-ventilator asynchrony and continuous measurement of tidal volumes. The method is based on measuring the c ...


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RESPIRATION MONITORING APPARATUS. June 8, 2017: US20170156633-A1

Disclosed is a hand-held respiration monitoring device configured to measure the breathing pattern of a patient so as to output respiration rate based data. The device comprises a sensor to be sensitive to a respiration airflow velocity flowing through the device with an identification of the change ...