Fisher & Paykel Healthcare Limited

Stephen David Evans

Jason Allan Klenner

Bruce Gordon Holyoake

Paul Fleming Buckley

Nicholas James Michael McKenna

Mark Samuel Hamilton

Hamish Adrian Osborne

James William Stanton

Myfanwy Jane Antica Norton

Michael John Andresen

Gavin Walsh Millar

Gareth Thomas McDermott

Jonathan Andrew George Lambert

David Leon McCauley

Sandeep Singh Gurm

Joseph Nathaniel Griffiths

Dexter Chi Lun Cheung

Nicholas James Michael Mckenna

Elmo Benson Stoks

David Robert Kemps

Neil Gray Duthie

Po-Yen Liu

Peter Alan Seekup

Paul James Tonkin

Madeleine Bess Martin

Thomas Jacques Fernand Maeckelberghe

Samuel Graham Boggs

Ping Si

Simon Mordechai Stam

Edwin Joseph Lyons

Christopher Gareth Sims

Ian Lee Wai Kwan

Stefan Leo Van Workum

Nicholas Edward Vaughan

James Owen Kehoe

John James Jackson

Tessa Hazel Paris

Rachael Porter

Adrian John Elsworth

Ada Yiwen Shou

Richard Edward Lang

Barry Shack Manon

Victor Rosales Corrales

Huang-Ku Liu

Richard William Mosley

Francisco Ernesto De La Peña De La Fuente

Gareth Thomas Mcdermott

David Leon Mccauley

Hamish Osborne

Andrew Paul Maxwell Salmon

Laith Adeeb Hermez

Anthony James Newland

Leon Edward Evans

Wenjie Robin Liang

Yintao Yu

Bhuvan Garg

Logan Ross Andrew

Francis Glynn

Po-Yen David Liu

Francisco Ernesto De La Pena De La Fuente

Chirstopher Gareth Sims

Humidifier heaterbase

Humidifier

A humidification system can include a heater base, a chamber, and a breathing circuit. The heater base includes a heater plate positioned in a recessed region, and a heat conductive portion of the chamber is configured to contact the heater plate. The heater base includes a guard configured to control movement of the chamber into and out of the recessed region. The guard includes an anti-racking mechanism. The chamber includes an inlet port, an outlet port. A downward extension extends into the chamber from the inlet port, and a baffle is disposed at a lower end of the downward extension. A component of the breathing circuit can include a conduit hanging end cap for shipping and storage. The end cap can include a hanging component to allow the breathing circuit component to be hung from a medical stand. The system can detect when breathing circuits are connected in reverse.

Humidification system

An improved system and method of determining a low water and/or water-out condition in a humidifier chamber of a respiratory or surgical humidifier system can use a specific frequency band to detect changes in a temperature of a heater plate. The temperature changes can correlate to the specific heat capacity value of the humidifier chamber. The low water and/or water-out detection process can be performed without having to determine the gases flow rate and/or can be run continuously. A heater plate assembly of the system can include a compliant insulation sheet to improve thermal coupling between the heating element and the top heating plate of the heater plate assembly, thereby improving the low water and/or water-out detection process.

Heater plate assembly in humidifier systems for medical use

A circuit connector for a humidification system, the system comprising a base unit configured to be engaged by a humidification chamber. The circuit connector comprises an inlet to fluidly connect to an outlet of the humidification chamber to receive humidified gases therefrom, an outlet to sealably connect to or integral with a conduit for directing the humidified gases to a user, and an electrical terminal for electrically coupling the circuit connector to an electrical terminal associated with the base unit. The circuit connector may be releasably and lockably connectable to the outlet of the humidification chamber and/or orientation features may control orientation of component parts of the system as they are assembled.

Humidification system connections

A humidification system can include a heater base, a humidification chamber, and a breathing circuit. A cartridge can be removably coupled to the heater base. The cartridge can include various sensors, probes, sensor wire connectors, heater wire connectors, and/or other features. The cartridge can include features configured to mate with corresponding features on the humidification chamber and the heater base. The cartridge includes a memory, such as an EEPROM, or other suitable storage device. When the cartridge is installed on the heater base, the memory is electrically connected to a processor and/or memory of the heater base. Various models of cartridges can be produced for use with different humidification chambers, breathing circuits, and/or therapies. A connector can be configured to couple an inspiratory conduit to an outlet port of the humidification chamber. The connector can provide a pneumatic connection to the outlet port and an electrical connection to the cartridge.

Connections for humidification system

A system for humidifying respiratory gases has a humidification apparatus, a humidification chamber, a heating apparatus and a sensor. The sensor is configured to determine a characteristic of the gases flow and communicate this to a controller which controls the power supplied to the heating apparatus with respect to information regarding the characteristic of the gases flow. A structure partially encloses the humidification chamber and allows energy loss through a wall of the humidification chamber. The humidification chamber may have features to promote heat loss through the wall of the chamber.

Humidification of respiratory gases

Cartridge and heater base for a humidifier

A humidification system can include a heater base, a humidification chamber, and a breathing circuit. A cartridge can be removably coupled to the heater base. The cartridge can include various sensors, probes, sensor wire connectors, heater wire connectors, and/or other features. The cartridge can include features configured to mate with corresponding features on the humidification chamber and the heater base. The cartridge includes a memory, such as an EEPROM, or other suitable storage device. When the cartridge is installed on the heater base, the memory is electrically connected to a processor and/or memory of the heater base. Various models of cartridges can be produced for use with different humidification chambers, breathing circuits, and/or therapies. A connector can couple an inspiratory conduit to an outlet port of the humidification chamber. The connector can provide a pneumatic connection to the outlet port and an electrical connection to the cartridge.

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Auckland, New Zealand

Stephen David Evans