Patents by Inventor Matthew Alder

Matthew Alder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10626876
    Abstract: A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current I DES required for the actual speed to approach or maintain a desired speed is used, together with the actual speed RPM ACT, in a flow estimation algorithm to determine flow through the PAP device. The estimation algorithm consists of a two-dimensional look-up table, where the inputs are the desired motor current and actual motor speed, and the output is the flow through the PAP device.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: April 21, 2020
    Assignee: ResMed Pty Ltd
    Inventors: Steven Paul Farrugia, Kristian Thomsen, Matthew Alder, Tracey Bullivant
  • Patent number: 10595814
    Abstract: A CPAP apparatus is provided that determines the presence of a snore by the simplified method of using filtered expiratory noise as the measure of intrinsic device noise and comparing that to filtered inspiratory noise. The filtering time constants for inspiratory and expiratory noise are adjusted such that treatment pressure does not cause false snore detection.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 24, 2020
    Assignee: ResMed Pty Ltd
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya, Kristian Thomsen
  • Publication number: 20190232002
    Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.
    Type: Application
    Filed: December 10, 2018
    Publication date: August 1, 2019
    Applicant: ResMed Pty Ltd
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya
  • 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: 10183136
    Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 22, 2019
    Assignee: ResMed Limited
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya
  • Publication number: 20150165145
    Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 18, 2015
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya
  • Publication number: 20150047639
    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: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Inventors: Steven Paul Farrugia, Matthew Alder, Andrew Mikael Price, Ron Richard
  • Patent number: 8931483
    Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: January 13, 2015
    Assignee: ResMed Limited
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya
  • Patent number: 8899232
    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: September 26, 2006
    Date of Patent: December 2, 2014
    Assignee: Resmed Limited
    Inventors: Steven Paul Farrugia, Matthew Alder, Andrew Mikael Price, Ron Richard
  • Patent number: 8365729
    Abstract: A CPAP apparatus is provided that determines the presence of a snore by the simplified method of using filtered expiratory noise as the measure of intrinsic device noise and comparing that to filtered inspiratory noise. The filtering time constants for inspiratory and expiratory noise are adjusted such that treatment pressure does not cause false snore detection.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: February 5, 2013
    Assignee: ResMed Limited
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya, Kristian Thomsen
  • Patent number: 8353289
    Abstract: A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current IDES required for the actual speed to approach or maintain a desired speed is used, together with the actual speed RPM ACT, in a flow estimation algorithm to determine flow through the PAP device. The estimation algorithm consists of a two-dimensional look-up table, where the inputs are the desired motor current and actual motor speed, and the output is the flow through the PAP device.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: January 15, 2013
    Assignee: ResMed Limited
    Inventors: Steven Paul Farrugia, Kristian Thomsen, Matthew Alder, Tracey Bullivant
  • Publication number: 20100319697
    Abstract: A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current IDES required for the actual speed to approach or maintain a desired speed is used, together with the actual speed RPM ACT, in a flow estimation algorithm to determine flow through the PAP device. The estimation algorithm consists of a two-dimensional look-up table, where the inputs are the desired motor current and actual motor speed, and the output is the flow through the PAP device.
    Type: Application
    Filed: November 5, 2005
    Publication date: December 23, 2010
    Inventors: Steven Paul Farrugia, Kristian Thomsen, Matthew Alder, Tracey Bullivant
  • Publication number: 20100258123
    Abstract: Systems and/or methods for treating sleep-disordered breathing (SDB) are provided. In particular, systems and/or methods are provided that include software systems for use with auto-titrating devices (e.g. APAP devices) that reduce and/or eliminate the need to calibrate the auto-titrating devices. The software system also may reduce and/or eliminate the need for certain sensors used in such calibrations. Certain example embodiments compute snore based on noises measured during expiration and inspiration, and certain example embodiments set patient leak utilizing the vent flow level. Certain example embodiments change treatment pressure thresholds after measuring patient improvement by monitoring a variable correlated with actual delivery pressure in accordance with an example embodiment, and certain example embodiments provide pressure according to motor speed in accordance with an example embodiment.
    Type: Application
    Filed: June 5, 2007
    Publication date: October 14, 2010
    Applicant: ResMed Limited
    Inventors: Chinmayee Somaiya, Steven Paul Farrugia, Matthew Alder, Kristian Thomsen
  • Publication number: 20090050155
    Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.
    Type: Application
    Filed: March 6, 2007
    Publication date: February 26, 2009
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya
  • Publication number: 20080308105
    Abstract: A CPAP apparatus is provided that determines the presence of a snore by the simplified method of using filtered expiratory noise as the measure of intrinsic device noise and comparing that to filtered inspiratory noise. The filtering time constants for inspiratory and expiratory noise are adjusted such that treatment pressure does not cause false snore detection.
    Type: Application
    Filed: January 4, 2007
    Publication date: December 18, 2008
    Inventors: Matthew Alder, Steven Paul Farrugia, Chinmayee Somaiya, Kristian Thomsen
  • Publication number: 20070017518
    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: Application
    Filed: September 26, 2006
    Publication date: January 25, 2007
    Inventors: Steven Farrugia, Matthew Alder, Andrew Price, Ron Richard
  • Patent number: 7128069
    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: June 18, 2004
    Date of Patent: October 31, 2006
    Assignee: Resmed Limited
    Inventors: Steven Paul Farrugia, Matthew Alder, Andrew Martin Price, Ron Richard
  • Publication number: 20050005937
    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: Application
    Filed: June 18, 2004
    Publication date: January 13, 2005
    Inventors: Steven Farrugia, Matthew Alder, Andrew Price, Ron Richard