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:
August 1, 2013
Date of Patent:
March 19, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Silas Sao Jin Siew, Andrew Paul Maxwell Salmon, Wen Dong Huang
Abstract: The invention relates to a method of determining water level in a humidifier chamber that is part of a humidified gases delivery apparatus and system. The method comprising the steps of delivering power to a heater plate, varying the power delivered to the heater plate, measuring the rate of change of temperature and determining the level of water based on the heating characteristics of the volume of water within the chamber, in particular determining the level of water within the chamber based on the rate of change of temperature and the supplied power.
Type:
Grant
Filed:
September 9, 2016
Date of Patent:
March 5, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Alastair Edwin McAuley, Yi-Cheng Sun, Jonathan David Harwood
Abstract: A nasal cannula assembly is disclosed having a face mount part, in use resting against a user's face, which includes at least one nasal prong capable of being fitted into a person's nares. The cannula assembly also includes a manifold part, in fluid communication with the face mount part, having a single horizontal side gases entry. In particular, this cannula assembly is for supplying heated, humidified gases to a patient suffering from COPD. A tie or lanyard is disclosed for use with a breathing assistance apparatus such as a nasal cannula, face or nasal mask or tracheostomy connector. The tie or lanyard transfers the weight of the conduits supplying gases to the breathing assistance apparatus from the breathing assistance apparatus and distributes it onto the neck of the patient.
Type:
Grant
Filed:
January 18, 2017
Date of Patent:
March 5, 2019
Assignee:
FISHER & PAYKEL HEALTHCARE LIMITED
Inventors:
Craig Karl White, Jason Peter Van Beurden, Kevin Peter O'Donnell
Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.
Type:
Grant
Filed:
April 13, 2012
Date of Patent:
March 5, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Gregory James Olsen, Peter David Alexander Bearne, Leon Edward Evans, Matthew Roger Stephenson, Craig Robert Prentice, Bernard Tsz Lun Ip, Tony William Spear, Mark Arvind McLaren, Roheet Patel, Brad Michael Howarth, Jonathan David Harwood
Abstract: A medical tube has a tube wall defining a passageway for transportation of gases and further has a first end and a second end. At least one end of the medical tube comprises one or more of a pre-formed pneumatic port component, a pre-formed electrical port component, and a pre-formed sensor port component. A cuff is over-molded about and thereby connects the pneumatic port component, the electrical port component, and/or the sensor port component and at least a portion of the tube end.
Abstract: A valve with an internal member is disclosed which allows exhaled carbon dioxide to escape from a breathing circuit when the circuit gas pressure drops below a threshold pressure. The valve operates by occluding one or more ports under a relatively high pressure and opening the one or more ports under a relatively low pressure. The internal member is attached to the body of the valve at two or more locations on the internal member. The internal member moves in a direction perpendicular to the gas flow through the valve.
Type:
Grant
Filed:
September 17, 2014
Date of Patent:
February 26, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Mark John Arrowsmith, Andrew John Partington, Sophia Adele Johnson
Abstract: A nasal cannula arrangement for use as part of systems for delivery respiratory gases to a patient is disclosed. The nasal cannula arrangement includes a manifold part adapted to receive gases from a delivery conduit. The manifold includes one but preferably a pair of prongs extending upward and curving towards the rear of the manifold. The prongs are inserted into the nostrils of the patient and deliver gases to a patient. The prongs have a cut out on the rear side of the prongs. The cut out forms a gases outlet in the prongs and are shaped such that the area of the cut out area is greater than the cross sectional area of the prongs at the entry point to the prongs.
Type:
Grant
Filed:
April 6, 2015
Date of Patent:
February 19, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Nicholas Alexander Hobson, Steven Charles Korner, Craig Karl White, Jason Peter van Beurden
Abstract: A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.
Abstract: A surgical humidification system includes a source of gas flow and a humidifier that receives the gas flow and outputs a humidified gas to a delivery conduit. The delivery conduit has an outlet and a suitable interface, such as a diffuser, is connected to the outlet. The interface can be positioned near or within an open surgical cavity of a patient to supply the humidified gas to the cavity. The system also includes a pressure relief arrangement that operates to relieve pressure from the system above a normal operating pressure. The pressure relief arrangement can be located in a non-sterile portion of the system, such as upstream from the humidifier, for example.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
February 12, 2019
Assignee:
FISHER & PAYKEL HEALTHCARE LIMITED
Inventors:
Paul David Phillips, Jonathan Stuart McFedries, Colette Marie Hanley
Abstract: Condensation or “rain-out” is a problem in breathing circuits and especially neonatal breathing circuits. The subject patent provides an improved breathing tube component for managing rain-out particularly in neonatal applications. In particular the breathing tube has a smooth inner bore, and an outer insulating layer containing stagnant gas and a heater wire.
Type:
Grant
Filed:
February 23, 2016
Date of Patent:
February 5, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Peter Kenneth Graham, Jonathan David Harwood, Laurence Gulliver
Abstract: A component useable with one or more tube including a body engageable with one or more external surface recesses of the one or more tubes. The component has a pair of jaws extending from the body for gripping an item. The component is configured, such that, in use, in a first orientation of the body relative to the respective tube(s) recesses, the component is movable along a length of the tube(s); and, in a second orientation of the body relative to the respective tube(s) recesses, the component is resistive to movement along a length of the tube(s).
Type:
Grant
Filed:
February 1, 2018
Date of Patent:
February 5, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Laurence Gulliver, Michael Paul Ronayne, Puqing Zhang, Andrew Paul Maxwell Salmon, Rex Gordon Faithfull
Abstract: A BLDC motor for driving a cross flow fan in an air-conditioning application has an external rotor and an internal stator. The stator is a salient pole stator with insulated pole teeth and conductor coils. The inner diameter of the stator supports a single bearing. An electronic PCBA for control of the BLDC motor is optionally attached to the stator, all of which is encapsulated in a thermoset resin. The rotor comprises permanent magnet component(s) and a rotor frame. The rotor frame includes a stub axle that engages with the bearing element and features to provide torsional or rotational compliance between the rotor magnets and the fan. A level of compliance is provided between the bearing element and the stator to allow for angular misalignment between the rotational axis of the fan and the stator.
Type:
Grant
Filed:
June 1, 2017
Date of Patent:
January 29, 2019
Assignee:
Fisher & Paykel Appliances Limited
Inventors:
Timothy Scott Germann, Gerald David Duncan, Gregory Paul Hill
Abstract: A humidifier for a respiratory assistance device, is provided wherein at least a portion of an inside of a chamber is exposed to light such that light impinges on a metallic or carbon-based material to generate localized heating of liquid molecules around the metallic or carbon-based material and generate vapour for use by the respiratory assistance device. A respiratory assistance device comprising a humidifier and related methods and apparatus are also provided. Arrangements are provided for generating vapour by impinging light on metallic and/or carbon based material, particularly in the form of nanoparticles.
Type:
Grant
Filed:
March 11, 2014
Date of Patent:
January 29, 2019
Assignee:
Fisher & Paykel Healthcare Limited
Inventors:
Andre Van Schalkwyk, Anthony James Newland
Abstract: This invention relates to connectors to be provided into fluid communication or engagement either directly with, or via a component to be associated with, a terminal end of a breathing conduit. In at least one embodiment, the connector comprises a body having a first end and a second end, and an internal lumen for the passage of gas between the ends. The first end engageable with a terminal end of a conduit or a component to be associated therewith. The second end engageable with another connector. An internal surface of the body at the second end comprises internal connection features for connection with another connector to be received internally therein. An external surface of the body comprises one or more external alignment feature(s) for aligning the connector or another connection into an aligned orientation for connection therebetween.
Type:
Application
Filed:
September 2, 2016
Publication date:
January 24, 2019
Applicant:
Fisher & Paykel Healthcare Limited
Inventors:
Andrew Chi Lup Lau, Richard Daniel Panara, Laurence Gulliver, Sooji Hope Clarkson, Jason Allan Klenner, Andrew Paul Maxwell Salmon, Brent Ian Laing