Abstract: The present invention provides for an improved method of determining a water out condition in a humidified gases supply apparatus. The method includes a two step process including a primary determination of a water out condition and a secondary determination of a water out condition. This primary determination is made during observation of the normal operation of the apparatus. During the secondary determination the method takes temporary control over the humidifying part of the apparatus. The secondary determination confirms or contradicts the primary determination.
Type:
Grant
Filed:
April 27, 2023
Date of Patent:
April 16, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Dean Antony Barker, Jack Che-Wei Hsu, Jae Chul Han
Abstract: A patient interface includes a frame, an inflatable seal, and a deformable insert. The frame includes an outer portion, an inner portion, and an opening extending therebetween. The inflatable seal is secured to the inner portion of the frame. The inflatable seal defines an internal volume and has at least one aperture. The deformable insert includes an outer surface, an inner surface and a passageway extending therebetween. The deformable insert is positioned within the internal volume of the seal and aligned with at least a portion of the frame inner portion. The passageway is aligned with the frame opening to define a gas flow path from the frame outer portion to the at least one aperture of the seal.
Type:
Grant
Filed:
February 4, 2021
Date of Patent:
April 9, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Silas Sao Jin Siew, Andrew Paul Maxwell Salmon, Wen Dong Huang
Abstract: A patient interface comprises an opening for receiving a flow of gas from a conduit and an adaptable connector system for connecting at least two different types of conduit with the opening. The adaptable connector is permanently mounted with the patient interface so it cannot be lost and is able to swing into alignment with the opening, thereby providing a different connection end to be compatible with a second or further type of conduit connection end.
Type:
Grant
Filed:
July 13, 2018
Date of Patent:
March 19, 2024
Assignee:
FISHER & PAYKEL HEALTHCARE LIMITED
Inventors:
Grant Leigh Nelson, Carsten Ma On Wong Corazza
Abstract: A ballooning patient interface has a frame that supports a sealing member. The frame and/or the sealing member is secured to the head of a user with headgear, such as a strap. Various features of the sealing member improve comfort for the user in the nares of the users as well as on facial surfaces in contact with the sealing member.
Type:
Grant
Filed:
January 6, 2021
Date of Patent:
March 12, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Matthew Robert Geoff Slight, Charles Nicolson, Jeroen Hammer, Wen Dong Huang, Arvin San Jose Gardiola
Abstract: A breathing gases supply apparatus 1 can comprise a blower 103/105 and breathing circuit for delivering breathing gases to a patient. The apparatus also can comprise a first controller 109, the controller 109 configured to receive input from at least one sensor 110-112 indicative of patient breathing, and a transmitter 201 configured to communicate with the controller 109 and transmit control signals to an electronic apparatus 203. The controller 109 can be configured to determine sleep in a patient based on the occurrence of a breathing pattern indicative of sleep, detected from the input received from the sensor 110-112 and upon determining sleep, operate the transmitter 201 to send a control signal to control an electronic apparatus 203.
Type:
Grant
Filed:
October 1, 2020
Date of Patent:
March 5, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
James Malcolm Thompson, Fiona Elizabeth Cresswell, Donald Roy Kuriger
Abstract: Medical tubes and methods of manufacturing medical tubes are disclosed, such as in positive airway pressure (PAP), respirator, anaesthesia, ventilator, and insufflation systems. The tube may be a composite structure made of two or more distinct components spirally wound to form an elongate tube. One of the components may be a spirally wound elongate hollow body, and the other component an elongate structural component spirally wound between turns of the spirally wound hollow body. Alternatively, the tube need not be made from distinct components. For instance, an elongate hollow body formed (e.g., extruded) from a single material may be spirally wound to form an elongate tube. The elongate hollow body itself may in transverse cross-section have a thin wall portion and a relatively thicker or more rigid reinforcement portion. The tubes can be incorporated into a variety of medical circuits or have other medical uses.
Type:
Grant
Filed:
May 25, 2018
Date of Patent:
March 5, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Gareth James Hobbs, Layton Robert Hern, Kiel Anthony McCool, Elmo Benson Stoks
Abstract: A respiratory assistance apparatus has a gases inlet configured to receive a supply of gases, a blower unit configured to generate a pressurised gases stream from the supply of gases; a humidification unit configured to heat and humidify the pressurised gases stream; and a gases outlet for the heated and humidified gases stream. A flow path for the gases stream extends through the respiratory device from the gases inlet through the blower unit and humidification unit to the gases outlet. A sensor assembly is provided in the flow path before the humidification unit. The sensor assembly has an ultrasound gas composition sensor system for sensing one or more gas concentrations within the gases stream.
Type:
Grant
Filed:
March 15, 2021
Date of Patent:
March 5, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Dean Antony Barker, Mikael Douglas Stewart, Peter Geoffrey Hawkins, Kevin Peter O'Donnell, Russel William Burgess
Abstract: The gases temperature supplied to a patient when the patient is undergoing treatment such as oxygen therapy or positive pressure treatment for conditions such as Obstructive Sleep Apnea (OSA) or Chronic Obstructive Pulmonary Disease (COPD) is often measured for safety and to enable controlling of the humidity delivered to the patient. The invention disclosed is related to measurement of properties, particularly temperature (thermistor), of gases flowing through a heated tube, supplying gases to a patient, which utilises the heating wire within the tube.
Type:
Grant
Filed:
April 26, 2021
Date of Patent:
February 27, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Matthew Jon Payton, Kevin Peter O'Donnell, Andrew Baden Clark, Christopher Simon James Quill, Peter Geoffrey Hawkins
Abstract: A respiratory assistance apparatus includes a flow generator and a humidifier. The humidifier includes a humidification chamber. The humidification chamber comprises a water tub that is configured to receive a volume of water. A lid is hingedly coupled to the water tub for enclosing a volume contained within the water tub.
Abstract: The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.
Type:
Grant
Filed:
June 10, 2020
Date of Patent:
February 20, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Bruce Gordon Holyoake, Dexter Chi Lun Cheung, Anil Patel, Seyed Ahmad Reza Nouraei, Milanjot Singh Assi, Thomas Heinrich Barnes, Alicia Jerram Hunter Evans, Craig Karl White, Matthew John Payton, Laith Adeeb Hermez, German Klink, Samantha Dale Oldfield, Taylor James Edwards, Aidan Robert Burgess
Abstract: An electrically conductive plastic (ECP) material can be used to heat water in a reservoir of a respiratory humidifier to encourage heating and/or humidification of gases passing through the respiratory humidifier. The electrically conductive plastic material can at least in part overmould the base and/or walls of the chamber and/or the reservoir of the respiratory humidifier. The reservoir can also partially or fully be formed from the electrically conductive plastic material.
Type:
Grant
Filed:
December 21, 2016
Date of Patent:
February 13, 2024
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Richard John Boyes, Andrew Martin Letton, Jeremy Livingston Miller, Andrew John Partington, Nordyn Alami
Inventors:
David Martin Russell, Anton Kim Gulley, Hamish Chan, Robert Stuart Kirton, Christopher Harding Campbell, Benjamin Wilson Casse, Kevin Peter O'Donnell, James Alexander Michael Revie
Inventors:
Callum Ross Gordon, Ryan Anthony Graham, Bruno Sintive, Mark Andrew Thompson, Amit Galgali, Vicky Dan Gao, Cameron Robert Willis, Jake Baker Hocking, Priyanka Ferdinand Pereira
Inventors:
Craig Robert Prentice, Bernard Tsz Lun Ip, Richard John Boyes, Thomas Mark Richardson, Gareth Thomas McDermott, Jonathan Mark Downey, Matthew Roger Stephenson
Inventors:
Bruce Gordon Holyoake, Eric Deverick, Ieuan Gregory Nicholas Edmonds, Michael John Andresen, Rachel Nicole Mosen, Sanket Raghunath Bhongale, Matthew Michael Marinovich
Inventors:
Callum Ross Gordon, Ryan Anthony Graham, Bruno Sintive, Mark Andrew Thompson, Amit Galgali, Vicky Dan Gao, Cameron Robert Willis, Jake Baker Hocking, Priyanka Ferdinand Pereira
Inventors:
Janine Elizabeth Collins, Chris Onin Limpin Hipolito, Jonathan Mark Downey, Matthew Aaron Bradley, Priyanka Ferdinand Pao, Steve Thomas, Silas Sao Jin Siew