Patents Assigned to ResMed Limited
  • Publication number: 20210205559
    Abstract: Methods and apparatus infer or indicate sleep stage(s) of a patient from a respiratory flow rate signal events of the patient. The method may include applying a plurality of detection pathways to a signal representing a respiratory flow rate of the patient, wherein each detection pathway is configured to generate start events and end events indicating start times and end times of episodes respectively of a corresponding sleep stage, wherein each start event and each end event has a priority; and combining the start events and end events based on their priorities to produce an indication of the sleep stage of the patient. The apparatus may include a sensor configured to generate a signal representing a property of a flow of air within a patient interface; and a processor configured to implement a method of inferring a sleep stage of the patient from the signal.
    Type: Application
    Filed: February 1, 2017
    Publication date: July 8, 2021
    Applicant: RESMED LIMITED
    Inventor: Dinesh RAMANAN
  • Publication number: 20190232013
    Abstract: A method of manufacturing a patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient's airways includes collecting anthropometric data of a patient's face. Anticipated considerations are identified from the collected anthropometric data during use of the patient interface. The collected anthropometric data is processed to provide a transformed data set based on the anticipated considerations, the transformed data set corresponding to at least one customised patient interface component. At least one patient interface component is modelled based on the transformed data set.
    Type: Application
    Filed: July 2, 2015
    Publication date: August 1, 2019
    Applicant: ResMed Limited
    Inventors: Tzu- Chin Yu, Aaron Samuel Davidson, Robert Henry Frater, Benjamin Peter Johnston, Paul Jan Klasek, Robert Anthony Paterson, Quangang Yang, Gerard Michael Rummery, Priyanshu Gupta, Liam Holley, Gordon Joseph Malouf
  • Patent number: 10335568
    Abstract: A neck strap for a headgear includes a one-piece main body adapted to engage a patient's neck, first and second lower connection portions adapted to connect to respective first and second lower mask connection straps, and first and second upper connection portions adapted to connect to respective first and second lateral crown straps.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: July 2, 2019
    Assignee: ResMed Limited
    Inventors: Amal Shirley Amarasinghe, Jessica Lea Dunn, Justin John Formica, Christopher Scott Skipper
  • Patent number: 10322254
    Abstract: A swivel elbow and connector assembly for a patient interface system includes a ring configured to be sealingly secured in an aperture of the patient interface system. The ring includes a first side in an interior of the patient interface system and a second side at an exterior of the patient interface system when the ring is secured in the aperture. The ring also includes a plurality of vents configured to permit flow of gases from the interior to the exterior of the patient interface system. The swivel elbow and connector assembly includes an elbow swivelably secured in the ring. A patient interface system for delivering a flow of breathable gas to a user includes a patient interface structure configured to sealing engage the face of the user. The patient interface structure includes an aperture. A swivel elbow and connector assembly is sealingly secured in the aperture.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: June 18, 2019
    Assignee: ResMed Limited
    Inventors: Teck Fong, Stephen Gray, Adam Francis Barlow, Robert Thomas Burnham, Christopher Scott Skipper, David Anthony Pidcock, Tumul Gupta, Damien Julian Mazzone, Jose Ignacio Romagnoli, Christopher Samuel Cullen
  • Publication number: 20190178251
    Abstract: A variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.
    Type: Application
    Filed: June 20, 2013
    Publication date: June 13, 2019
    Applicant: ResMed Limited
    Inventors: Geoffrey D. Daly, Alexander Virr, Stephen A. Lea, Dion Charles C. Martin, Nicholas J. Reed, Larry Puckeridge, Timothy Tsun-Fai Fu
  • Publication number: 20190167934
    Abstract: Systems and methods permit generation of a digital scan of a user's face such as for obtaining of a patient respiratory mask, or component(s) thereof, based on the digital scan. The method may include: receiving video data comprising a plurality of video frames of the user's face taken from a plurality of angles relative to the user's face, generating a three-dimensional representation of a surface of the user's face based on the plurality of video frames, receiving scale estimation data associated with the received video data, the scale estimation data indicative of a relative size of the user's face, and scaling the digital three-dimensional representation of the user's face based on the scale estimation data. In some aspects, the scale estimation data may be derived from motion information collected by the same device that collects the scan of the user's face.
    Type: Application
    Filed: October 3, 2018
    Publication date: June 6, 2019
    Applicant: RESMED LIMITED
    Inventors: Simon Michael LUCEY, Benjamin Peter Johnston, Priyanshu Gupta, Tzu-Chin Yu
  • Patent number: 10307561
    Abstract: A vent arrangement for a respiratory pressure therapy device may include one or a plurality of vents configured with a variable aperture for communicating a flow of breathable gas. The vent arrangement may be configured with a cross section profile exposed to the flow of breathable gas communicating through the vent that does not change as the aperture size changes. A vent arrangement may include a plurality of the vents and the aperture size of each vent may be controlled independently or together, and may be controlled according to one or more input signals from one or more sensors. Examples of suitable input signals include flow, pressure, noise, accelerometer outputs, orientation of a patient or presence of any obstructions. A patient interface or an air circuit may include the vent arrangement, or the vent arrangement may be configured to connect with a patient interface or an air circuit.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 4, 2019
    Assignee: ResMed Limited
    Inventor: Roger Mervyn Lloyd Foote
  • Patent number: 10307554
    Abstract: A comfortable low-leak mask assembly for use with Non-Invasive Positive Pressure Ventilation (NIPPV) is provided to improve patient compliance and/or treatment. The mask system may include headgear having straps that are substantially inextensible and/or micro-adjustable; and/or a mask and/or cushion that includes various structures to allow enhanced/tailored sealing and/or fit at selected locations on the patient's face.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: June 4, 2019
    Assignee: ResMed Limited
    Inventors: Michael Berthon-Jones, Peter Edward Bateman, Donald Darkin, Robin Garth Hitchcock, Philip James Jenkinson, Susan Robyn Lynch, Gordon Joseph Malouf, Patrick John McAuliffe, Milind Chandrakant Raje, Gary Christopher Robinson, Richard Sokolov, Philip Thomas Stallard, Michael Kassipillai Gunaratnam
  • Patent number: 10307560
    Abstract: A positive airway pressure (PAP) device for supplying a flow of breathable gas to a patient includes a flow generator configured to pressurize a flow of breathable gas and a humidifier configured to receive and humidify the pressurized flow of breathable gas from the flow generator. The PAP device also includes a power source. The flow generator, humidifier and power source are positioned so that heat generated by at least one of the flow generator and the power source is conveyed to water in the humidifier.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 4, 2019
    Assignee: ResMed Limited
    Inventors: Dion Charles Chewe Martin, Barton John Kenyon, Alexander Virr, Dmitri Anatolievich Doudkine, Philip Rodney Kwok, Richard Charles Napper, John Michael Snow
  • Patent number: 10307559
    Abstract: A humidifier includes a heating element including a porous structure of electrically resistive and thermally conductive material configured to substantially vaporise liquid that is passed through the porous structure. The porous structure has a liquid inlet and a vapour outlet. The humidifier further includes an outer housing surrounding at least a portion of the porous structure for containing the liquid and vapour within the porous structure. The porous structure includes a first electrical connector and a second electrical connector, the first and second connectors being configured for receiving electrical power and applying a voltage across the porous structure to generate heat.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: June 4, 2019
    Assignee: ResMed Limited
    Inventors: Roger Mervyn Lloyd Foote, Ronald James Huby, Andrew Roderick Bath
  • Patent number: 10300238
    Abstract: A CPAP apparatus is configured to deliver a flow of pressurized, humidified breathable gas to a patient's airways. The CPAP apparatus includes a blower, a humidification unit and a dehumidification unit. The blower is configured to generate a flow of breathable gas pressurized within a predetermined pressure range. The humidification unit is configured to humidify the pressurized breathable gas discharged from the blower. The dehumidification unit is configured to draw condensation from ambient air and operate at the same time as the humidification unit. An air outlet of the CPAP apparatus is sealingly attachable to an air delivery tube and patient interface assembly.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventors: Philip Rodney Kwok, Donald Darkin
  • Patent number: 10300231
    Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Nicholas Jerome Reed
  • Patent number: 10300235
    Abstract: A mask system for providing pressurized breathable gas includes at least one panel and a seal member, wherein the panel comprises a textile. The panel defines a cavity adapted to receive a patient's nose. The seal member is adapted to sealingly engage with the patient's face. The panel and seal member may be integrally formed in one piece.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventors: Jose Ignacio Romagnoli, Julian Ross Lombardo, Jessica Lea Dunn
  • Patent number: 10300230
    Abstract: Systems and/or methods for assessing the sleep quality of a patient in a sleep session are provided. Data is collected from the patient and/or physician including, for example, sleep session data in the form of one or more physiological parameters of the patient indicative of the patient's sleep quality during the sleep session, a subjective evaluation of sleep quality, etc.; patient profile data; etc. A sleep quality index algorithm, which optionally may be an adaptive algorithm, is applied, taking into account some or all of the collected data. Sleep quality data may be presented to at least the patient, and it may be displayed in any suitable format (e.g., a format useful for the patient to be appraised on the progress of the treatment, a format useful for a sleep clinician to monitor progress and/or assess the effectiveness of differing treatment regimens, etc).
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventors: Renee Frances Flower, Philip Rodney Kwok, Muditha Pradeep Dantanarayana, Ron Richard
  • Patent number: 10300232
    Abstract: A ventilator device delivers ventilatory support to a patient in a back up timed mode when patient respiration is not detected or a spontaneous mode when patient respiration is detected. The timing threshold governing the back-up mode is chosen to deviate from normal expected respiration time for the patient to promote patient initiated ventilation in the spontaneous mode but permit back-up ventilation in the event of apnea. Automated adjustments to the timing threshold during the timed mode are made from the less vigilant timing threshold to a more vigilant threshold at or near a timing of normal expected breathing of the patient. Such adjustments may be made from a minimum to a maximum vigilance timing settings or incrementally there between as a function of time in the timed mode which is preferably the number of delivered machine breaths.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventor: David John Bassin
  • Patent number: 10293125
    Abstract: A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The flow generator may be programmed to include a reminder system including a menu from which the user may request a reminder to take specific action, e.g., replace a component, call a physician, and/or enter patient data card, etc.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 21, 2019
    Assignee: RESMED LIMITED
    Inventors: Simone Marie Jeha, Andrew Charles Murray, Mark John Payne
  • Patent number: 10293127
    Abstract: A low-cost CPAP apparatus in which, upon detection of the transition from inhalation to exhalation, the blower motor is de-energized to allow it to freewheel. When the pressure in the patient mask (or whatever interface is utilized) reaches a minimum pressure level during exhalation, the motor is re-energized and its speed is controlled so to maintain the pressure at a level suitable for exhalation. Upon detection of the transition from exhalation to inhalation, the motor speed is increased to provide higher pressures in the patient mask suitable for inhalation.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 21, 2019
    Assignee: ResMed Limited
    Inventors: Steven Paul Farrugia, Matthew Alder, Andrew Mikael Price, Ron Richard
  • Patent number: 10279134
    Abstract: An adapter for use with a flow generator includes a conduit attachable to the outlet of the flow generator and an identifying element supported by the conduit and providing an identifying feature unique to a specific peripheral component attachable to the flow generator. The identifying feature is communicatable to the flow generator so that appropriate operating parameters of the flow generator may be automatically selected by the flow generator to coordinate with the specific peripheral component.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 7, 2019
    Assignee: ResMed Limited
    Inventor: Philip Rodney Kwok
  • Patent number: D849232
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 21, 2019
    Assignee: ResMed Limited
    Inventors: Justin John Formica, Mark Simpson
  • Patent number: D849241
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 21, 2019
    Assignee: ResMed Limited
    Inventors: Adam Francis Barlow, William Laurence Hitchcock, Rupert Christian Scheiner, Gerard Michael Rummery