Patents by Inventor Michael John Blood Trousdell

Michael John Blood Trousdell 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).

  • Breathing assistance apparatus
    Patent number: 7063086
    Abstract: A valve for use in a CPAP system or any stem at a pressure above ambient which vents the pressurised gases from the blower during expiration. Due to the pressure-flow characteristics of the blower this results in the patient having a much lower airway pressure during expiration making breathing easier. The valve includes a movable member which blocks flow from the blower to the patient during exhalation and vents externally. During inhalation gases flow normally from the blower to the patient. Also disclosed is a further application as an antiasphyxia.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: June 20, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Mehdi Shahbazpour, Michael John Blood Trousdell, Chris Earl Nightingale, Alastair Edwin McAuley, Aidan Mark Shotbolt
  • Breathing assistance apparatus
    Publication number: 20030066530
    Abstract: A valve for use in a CPAP system or any stem at a pressure above ambient which vents the pressurised gases from the blower during expiration. Due to the pressure-flow characteristics of the blower this results in the patient having a much lower airway pressure during expiration making breathing easier. The valve includes a movable member which blocks flow from the blower to the patient during exhalation and vents externally. During inhalation gases flow normally from the blower to the patient.
    Type: Application
    Filed: September 9, 2002
    Publication date: April 10, 2003
    Inventors: Mehdi Shahbazpour, Michael John Blood Trousdell, Chris Earl Nightingale, Alastair Edwin Mcauley, Aidan Mark Shotbolt