Patents Assigned to ResMed Sensor Technologies Limited
  • Publication number: 20200009349
    Abstract: A processing system includes methods to promote sleep. The system may include a monitor such as a non-contact motion sensor from which sleep information may be determined. User sleep information, such as sleep stages, hypnograms, sleep scores, mind recharge scores and body scores, may be recorded, evaluated and/or displayed for a user. The system may further monitor ambient and/or environmental conditions corresponding to sleep sessions. Sleep advice may be generated based on the sleep information, user queries and/or environmental conditions from one or more sleep sessions. Communicated sleep advice may include content to promote good sleep habits and/or detect risky sleep conditions. In some versions of the system, any one or more of a bedside unit 3000 sensor module, a smart processing device, such as a smart phone or smart device 3002, and network servers may be implemented to perform the methodologies of the system.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 9, 2020
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Redmond SHOULDICE, Colin LAWLOR, Matthew NORTON, David MULLIGAN, Stephen MCMAHON, Paul PHILLIPS, Damien O'ROURKE, Luke GAHAN, Marc LAVELLE, Conor HENEGHAN, Alberto ZAFFARONI, Gareth MCDARBY
  • Patent number: 10525219
    Abstract: An apparatus, such as a pressure support ventilator or respiratory monitor, provides operations for a patient, such as a patient with heart failure, Chronic Obstructive Pulmonary Disease or other respiratory insufficiency. In some embodiments, the apparatus may detect a respiratory condition, such as a decompensation event and/or exacerbation event, from respiratory parameters. A clinical alert message may be transmitted or displayed for a physician based on the results of query presented to the patient in response to an analysis of the one or more respiratory parameters. In some embodiments, the apparatus generates a potential relapse indicator that may provide a prediction of a risk of an oncoming clinical event such as for evaluating whether to release the patient from a hospital.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 7, 2020
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Klaus Henry Schindhelm, Steven Paul Farrugia
  • Patent number: 10492720
    Abstract: Methods and apparatus monitor health by detection of sleep stage. For example, a sleep stage monitor may access sensor data signals related to bodily movement and respiration movements. At least a portion of the detected signals may be analyzed to calculate respiration variability. The respiration variability may include variability of respiration rate or variability of respiration amplitude. A processor may then determine a sleep stage based on a combination bodily movement and respiration variability. The determination of sleep stages may distinguish between deep sleep and other stages of sleep, or may differentiate between deep sleep, light sleep and REM sleep. The bodily movement and respiration movement signals may be derived from one or more sensors, such as non-invasive sensor (e.g., a non-contact radio-frequency motion sensor or a pressure sensitive mattress).
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: December 3, 2019
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Paul Phillips, Conor Heneghan, Trevor Murray
  • Patent number: 10426380
    Abstract: Disclosed is a cardio-pulmonary health monitoring apparatus. The apparatus comprises a contactless motion sensor configured to generate one or more movement signals representing bodily movement of a patient during a monitoring session; a processor; and a memory storing program instructions configured to cause the processor to carry out a method of processing the one or more movement signals. The method comprises extracting one or more sleep disordered breathing features from the one or more movement signals, and predicting whether a clinical event is likely to occur during a predetermined prediction horizon based on the one or more sleep disordered breathing features.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: October 1, 2019
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Klaus Henry Schindhelm, Steven Paul Farrugia, Michael Waclaw Colefax, Faizan Javed, Rami Khushaba, Conor Heneghan, Philip De Chazal, Alberto Zaffaroni, Niall Fox, Patrick Celka, Emer O'Hare, Stephen James Redmond
  • Patent number: 10376670
    Abstract: A processing system includes methods to promote sleep. The system may include a monitor such as a non-contact motion sensor from which sleep information may be determined. User sleep information, such as sleep stages, hypnograms, sleep scores, mind recharge scores and body scores, may be recorded, evaluated and/or displayed for a user. The system may further monitor ambient and/or environmental conditions corresponding to sleep sessions. Sleep advice may be generated based on the sleep information, user queries and/or environmental conditions from one or more sleep sessions. Communicated sleep advice may include content to promote good sleep habits and/or detect risky sleep conditions. In some versions of the system, any one or more of a bedside unit 3000 sensor module, a smart processing device, such as a smart phone or smart device 3002, and network servers may be implemented to perform the methodologies of the system.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: August 13, 2019
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Redmond Shouldice, Colin John Lawlor, Matthew Norton, David Mulligan, Stephen McMahon, Paul Phillips, Damien O'Rourke, Luke Gahan, Marc Lavelle, Conor Heneghan, Alberto Zaffaroni, Gareth McDarby
  • Publication number: 20190159960
    Abstract: Aspects of the of the disclosure relate to a non-contact physiological motion sensor and a monitor device that can incorporate use of the Doppler effect. A continuous wave of electromagnetic radiation can be transmitted toward one or more subjects and the Doppler-shifted received signals can be digitized and/or processed subsequently to extract information related to the cardiopulmonary motion in the one or more subjects. The extracted information can be used, for example, to determine apneic events and/or snoring events and/or to provide apnea or snoring therapy to subjects when used in conjunction with an apnea or snoring therapy device. In addition, methods of use are disclosed for sway cancellation, realization of cessation of breath, integration with multi-parameter patient monitoring systems, providing positive providing patient identification, or any combination thereof.
    Type: Application
    Filed: August 23, 2018
    Publication date: May 30, 2019
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Robert Haruo Nakata, Isar Mostafanezhad, Scott Tadashi Miyasato, Erik Vossman
  • Publication number: 20190059746
    Abstract: A sensor for physiology sensing may be configured to generate oscillation signals for emitting radio frequency pulses for range gated sensing. The sensor 402 may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency pulses. The received pulses may be processed to detect physiology characteristics such as motion, sleep, respiration and/or heartbeat. In some embodiments, the sensor may employ a circuit including a pulse generator configured to generate signal pulses. The circuit may also include a dielectric resonator oscillator configured to generate a radio frequency oscillating signal. A switched oscillation circuit may be coupled to the pulse generator and the dielectric resonator oscillator. The switched circuit may be configured to generate a pulsed radio frequency oscillating signal for emitting the radio frequency pulses.
    Type: Application
    Filed: October 31, 2018
    Publication date: February 28, 2019
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Stephen McMahon, Michael Wren, Spencer Terry Wood, Kieran Conway, Conor Heneghan
  • Publication number: 20190021607
    Abstract: An apparatus, system, and method monitors the motion, breathing, heart rate and sleep state of subjects, e.g., humans, in a convenient, non-invasive/non-contact, and low-cost fashion. More particularly, the motion, breathing, and heart rate signals are obtained through processing applied to a raw signal obtained in a non-contact fashion, typically using a radio-frequency sensor. Periods of sleep disturbed respiration, or central apnea can be detected through analysis of the respiratory signal. The mean heart rate, and derived information, such as the presence of cardiac arrhythmias can be determined from the cardiac signal. Motion estimates can be used to recognize disturbed sleep and periodic limb movements. The sleep state may be determined by applying a classifier model to the resulting streams of respiratory, cardiac and motion data. A means for display of the sleep state, respiratory, cardiac, and movement status may also be provided.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 24, 2019
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Conor Heneghan, Conor Hanley, Niall Fox, Philip De Chazal
  • Patent number: 10159421
    Abstract: Methods and apparatus perform periodic breathing detection, such as Cheyne-Stokes respiration detection. The detection may be performed by one or more processors, such as by analysis of data from one or more sensors. In some cases, the detection may be based on an electrocardiogram (ECG) signal, such as from ECG electrodes and/or an accelerometer signal, such as from an accelerometer. An occurrence of periodic breathing may be detected based on features derived from the signal(s). For example, detection may be based on deriving a respiration signal from the sensed signal(s) and/or analysis of RR interval times or relative QRS amplitude values, which may be evaluated on a segment-by-segment basis. The detection may provide monitoring and reporting of the occurrence of periodic breathing by a monitoring device and/or provide a basis for controlling changes to a provided respiratory treatment or therapy, such as by a respiratory pressure therapy device.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: December 25, 2018
    Assignee: ResMed Sensor Technologies Limited
    Inventor: Conor Heneghan
  • Publication number: 20180353138
    Abstract: A sensor may be configured to detect periodic limb movement in a sleeping person. The sensor may be a non-contact sensor, such as a radar motion sensor. The sensor may include a radio frequency transmitter for emitting radio frequency signals toward the person. The sensor may include a receiver for receiving reflected ones of the emitted radio frequency signals and processing the reflected ones of the emitted radio frequency signals to produce motion signal(s). A processor, such as one integrated with or coupled to the sensor, may evaluate the motion signals, such as in-phase and quadrature motion signals, and generate an indicator to identify occurrence of periodic limb movement in the motion signals based on the evaluation of the motion signals.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 13, 2018
    Applicants: RESMED LIMITED, ResMed Sensor Technologies Limited
    Inventors: Emer DOHENY, Luke GAHAN, Rami KHUSHABA, Emer O'HARE, Alberto ZAFFARONI
  • Patent number: 10143386
    Abstract: A sensor for physiology sensing may be configured to generate oscillation signals for emitting radio frequency pulses for range gated sensing. The sensor 402 may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency pulses. The received pulses may be processed to detect physiology characteristics such as motion, sleep, respiration and/or heartbeat. In some embodiments, the sensor may employ a circuit including a pulse generator configured to generate signal pulses. The circuit may also include a dielectric resonator oscillator configured to generate a radio frequency oscillating signal. A switched oscillation circuit may be coupled to the pulse generator and the dielectric resonator oscillator. The switched circuit may be configured to generate a pulsed radio frequency oscillating signal for emitting the radio frequency pulses.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 4, 2018
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Stephen McMahon, Michael Wren, Spencer Terry Wood, Kieran Conway, Conor Heneghan
  • Publication number: 20180256069
    Abstract: Methods and apparatus detect events of sleep disordered breathing from an input audio signal such as from a sound sensor. A processor may be configured to receive the audio signal that represents sounds of a user during a period of sleep. The processor determines reliable respiration epochs from the audio, such as on a frame-by-frame basis, that include periods of audible breathing and/or snoring. The processor detects presence of a sleep disordered breathing events, such as hypopnea, apnea, apnea snoring or modulated breathing, in the reliable respiration epoch(s) and generates output to indicate the detected event(s). Optionally, the apparatus may serve as a cost-effective screening device such as when implemented as a processor control application for a mobile processing device (e.g., mobile phone or tablet).
    Type: Application
    Filed: August 17, 2016
    Publication date: September 13, 2018
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventor: Stephen MCMAHON
  • Publication number: 20180239014
    Abstract: A digitally implemented radio frequency sensor for physiology sensing may be configured to generate oscillation signals for emitting radio frequency pulses for range gated sensing. The sensor may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency pulses under control of a microcontroller. The received pulses may be processed by the microcontroller to detect physiology characteristics such as motion, sleep, respiration and/or heartbeat. The microcontroller may be configured to generate timing pulses such as with a pulse generator for transmission of radio frequency sensing pulses. The microprocessor may sample received signals, such as in phase and quadrature phase analogue signals, to implement digital demodulation and baseband filtering of the received signals.
    Type: Application
    Filed: August 16, 2016
    Publication date: August 23, 2018
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventor: Stephen MCMAHON
  • Publication number: 20180120420
    Abstract: A sensor for motion or gesture sensing may be configured to emit radio frequency signals such as for pulsed range gated sensing. The sensor may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency signals. The received pulses may be processed by a motion channel and/or a gesture channel. The gesture channel may produce signals for further processing for identification of one or more different motion gestures such as by calculating and evaluating features from one or more of the amplitude, phase and frequency of the output signals of the gesture channel. The sensing apparatus may optionally serve as a monitor for evaluating user activities, such as by counting certain activities. The sensor may optionally serve as a user control interface for many different devices by generating control signal(s) based on the identification of one or more different motion gestures.
    Type: Application
    Filed: April 20, 2016
    Publication date: May 3, 2018
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Stephen McMahon, Emma Marie Meade, Redmond Shouldice
  • Publication number: 20180106897
    Abstract: One or more sensors are configured for detection of characteristics of moving objects and living subjects for human identification or authentication. One or more processors, such as in a system of sensors or that control a sensor, may be configured to process signals from the one or more sensors to identify a person. The processing may include evaluating features from the signals such as breathing rate, respiration depth, degree of movement and heart rate etc. The sensors may be radio frequency non-contact sensors with automated detection control to change detection control parameters based on the identification of living beings, such as to avoid sensor interference.
    Type: Application
    Filed: April 20, 2016
    Publication date: April 19, 2018
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Redmond Shouldice, Emer DOHENY, Alberto Zaffaroni
  • Publication number: 20180081030
    Abstract: Radio frequency motion sensors may be configured for operation in a common vicinity so as to reduce interference. In some versions, interference may be reduced by timing and/or frequency synchronization. In some versions, a master radio frequency motion sensor may transmit a first radio frequency (RF) signal. A slave radio frequency motion sensor may determine a second radio frequency signal which minimizes interference with the first RF frequency. In some versions, interference may be reduced with additional transmission adjustments such as pulse width reduction or frequency and/or timing dithering differences. In some versions, apparatus may be configured with multiple sensors in a configuration to emit the radio frequency signals in different directions to mitigate interference between emitted pulses from the radio frequency motion sensors.
    Type: Application
    Filed: April 20, 2016
    Publication date: March 22, 2018
    Applicant: RESMED SENSOR TECHNOLOGIES LIMITED
    Inventors: Stephen McMahon, Przemyslaw Szkot, Redmond Shouldice
  • Publication number: 20170238867
    Abstract: A method and apparatus monitors chronic disease state of a patient. The method may include extracting, in a processor, for each of a plurality of monitoring sessions, a respiratory feature from a respiratory signal indicative of the patient's respiration during the monitoring session, the respiratory signal derived from at least one sensor; and computing, in a processor, a stability measure of the patient for a monitoring session, the stability measure representing an indication of a change point having occurred at the monitoring session in a statistical distribution of the respiratory feature.
    Type: Application
    Filed: May 25, 2015
    Publication date: August 24, 2017
    Applicant: ResMed Sensor Technologies Limited
    Inventors: Faizan JAVED, Steven Paul FARRUGIA
  • Publication number: 20170231504
    Abstract: An apparatus, system, and method for monitoring a person suffering from a chronic medical condition predicts and assesses physiological changes which could affect the care of that subject. Examples of such chronic diseases include (but are not limited to) heart failure, chronic obstructive pulmonary disease, asthma, and diabetes. Monitoring includes measurements of respiratory movements, which can then be analyzed for evidence of changes in respiratory rate, or for events such as hypopneas, apneas and periodic breathing. Monitoring may be augmented by the measurement of nocturnal heart rate in conjunction with respiratory monitoring. Additional physiological measurements can also be taken such as subjective symptom data, blood pressure, blood oxygen levels, and various molecular markers. Embodiments for detection of respiratory patterns and heart rate are disclosed, together with exemplar implementations of decision processes based on these measurements.
    Type: Application
    Filed: November 4, 2016
    Publication date: August 17, 2017
    Applicant: ResMed Sensor Technologies Limited
    Inventors: Conor Heneghan, Alberto Zaffaroni, Philip De Chazal, Redmond Shouldice
  • Patent number: 9526429
    Abstract: An apparatus, system, and method for monitoring a person suffering from a chronic medical condition predicts and assesses physiological changes which could affect the care of that subject. Examples of such chronic diseases include (but are not limited to) heart failure, chronic obstructive pulmonary disease, asthma, and diabetes. Monitoring includes measurements of respiratory movements, which can then be analyzed for evidence of changes in respiratory rate, or for events such as hypoponeas, apneas and periodic breathing. Monitoring may be augmented by the measurement of nocturnal heart rate in conjunction with respiratory monitoring. Additional physiological measurements can also be taken such as subjective symptom data, blood pressure, blood oxygen levels, and various molecular markers. Embodiments for detection of respiratory patterns and heart rate are disclosed, together with exemplar implementations of decision processes based on these measurements.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 27, 2016
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Conor Heneghan, Alberto Zaffaroni, Philip De Chazal, Redmond Shouldice
  • Patent number: D834200
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: November 20, 2018
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Mathew Bates, Lukas Fuchs, Ganesh Kumar Sukumar, Buvenesh Balaji Ramachandran, Kieran Conway, Stephen McMahon, Dominic Southgate