Fisher & Paykel Healthcare Limited

The New Zealand Institute for Plant and Food Research Limited

Dean Antony Barker

Russel William Burgess

Kevin Peter O'Donnell

Peter Geoffrey Hawkins

Jack Che-Wei Hsu

Jae Chul Han

Andre Van Schalkwyk

Mikael Douglas Stewart

Stanislav Tatkov

Martin Paul Friedrich Kramer

Robert Stuart Kirton

Joel Michael Lawson

Therese Clark

Jonathan David Harwood

Elmo Benson Stoks

Gavin Walsh Millar

Sean Joel Babbage

David Leon McCauley

Matthew Liam Buswell

Charles Christopher North

Dominique Richard D'Andrea

Helgard Oosthuysen

Ibrahim Al-Tiay

Matthew Robert Wilson

Mahran Maumoon Sujau

Katja Munkelt

Sanjay Parag Patel

Grant Martin Dover

Joshua Daniel Stroobant

Christopher Jaye Norman Amadio

Andrew Paul Maxwell Salmon

Benjamin Wilson Casse

Donald Roy Kuriger

Nordyn Alami

Jeremy Livingston Miller

Johannes Nicolaas Bothma

Philip John Dickinson

Laith Adeeb Hermez

Adam John Darby

Arjen David Kat

Venkata Subbarao Potharaju

Jess Edward Donnelly

Rachel Adeline Miller

Bernhard Florian Lamprecht

Ella Marie Meisel

Sujeewa Wannigama

Nimansha Budhiraja

Nicholas Edward Vaughan

Gregory Martyn Smith

Guohua Bao

Quinton Michael Smith

Emma Louise Nasimi

Kevin Peter O′Donnell

Jae Chui Han

Ronald Francis Henzell

Zarin Kasad

Maurice Wen-Bin Chai

Cameron Alexander Lawrence

Eamonn Bernard McKnight

Stanislave Tatkov

Lynn Roland Cate

Robert Bruce Jordan

Keith Robert Sharrock

Mark Francis Roche

Gavin Andrew Bryson Ryan

Stanislov Tatkov

Ian Patrick Sarsfield Hickey

Andrew Jun Li

Kevin Peter O'donnell

Martin Paul Kramer

Christopher Jaye Amadio

Martin Grant Dover

A respiratory flow therapy apparatus including a sensor module can measure a flow rate of gases or gases concentration provided to a patient. The sensor module can be located after a blower and/or mixer. The sensor module can include at least an ultrasonic transmitter, a receiver, a temperature sensor, a pressure sensor, a humidity sensor and/or a flow rate sensor. The receivers can be immersed in the gases flow path. The receivers can cancel delays in the transmitters and improve accuracy of measurements of characteristics of the gases flow. The receivers can allow for detection of a fault condition in a blower motor of the apparatus.

Flow path sensing for flow therapy apparatus

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.

Water out alarm

The disclosure relates to medical tubes and methods of manufacturing medical tubes. The tube may be a composite structure made of two or more distinct components that are spirally wound to form an elongate tube. For example, one of the components may be a spirally wound elongate hollow body, and the other component may be an elongate structural component also spirally wound between turns of the spirally wound hollow body. The tube need not be made from distinct components, however. 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 may be employed for other medical uses.

Medical tubes and methods of manufacture

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.

Respiratory assistance apparatus

A respiratory mask or other sealing interface can be used in combination with a nasal cannula or other unsealing interface in providing respiratory therapies for the treatment of COPD or OSA. The mask can act as a pressure vessel over the top of a nasal cannula, with the intention of increasing expiratory pressure whilst allowing the nasal cannula to provide a user with breathing gases of a high humidity and temperature. The ability to selectively apply increased expiratory pressure may be effective in reducing a user's breathing rate and thus beneficial in the treatment of respiratory distress.

Pressurizing masks, systems and methods

Systems and method for conducting respiratory therapy in a respiratory system can adjust a flow of respiratory gases to a patient based upon a detected patient breath cycle. The respiratory system can include a non-sealed patient interface. The respiratory system can be configured to deliver a high flow therapy. A patient breath cycle may be determined using one or more measured parameters, such as a flow rate, a blower motor speed, and/or a system pressure. A flow source may be adjusted to have a phase matching that of the patient's breath cycle, such that flow in increased in response to the patient inhaling, and decreased in response to the patient exhaling.

An apparatus for the supply of humidified gases to a patient is disclosed that comprises a gases supply passage downstream of a humidified gases supply, and upstream of a patient in use, where at least one sensor is embedded in or located on the outside of the wall of the passage. In preferred forms the wall of the passage divides the sensor(s) from a flow of gases in the passage. In use, a controller receives an output of the sensor(s) and derives from the output of the sensor(s) an estimation of a property of gases flowing through the passage or provides a control output to the humidified gases supply according to the output of the sensor(s).

Apparatus for supplying gases to a patient

A respiratory flow therapy apparatus including a sensing chamber which measures a flow of gases provided to a patient. The sensing chamber can be located after a blower and/or mixer. The sensing chamber can include an ultrasonic transducer, a temperature sensor, a heated temperature sensing element, and/or a gas concentration sensor. A flow path of gases used in conjunction with the sensor system prevents unwanted vorticity in the flow of gases that can create anomalies in measuring flow.

A respiratory therapy system can have a flow generator adapted to provide gases to a patient. A gas passageway can be located in-line with the flow generator. The gas passageway can have a first portion adapted to receive a first gas and a second portion adapted to receive a second gas. The gas passageway can have a static mixer downstream of the first and second portions.

Fluid mixing structure

The operational parameters of a respiratory apparatus can be controlled through the use of a user interface located on a separate or separable mobile computing device. Sensors or features located on the mobile computing apparatus can be used to adjust the operation parameters or therapy of the respiratory apparatus or otherwise improve the compliance of a patient utilizing the respiratory apparatus.

Control for respiratory device

A respiratory assistance apparatus () is provided, adapted to deliver gases to a user or patient (). The apparatus () comprises a housing () provided with a chamber () and a heater (), the chamber () comprising at least one gas port () connected to, or arranged to be connected to, at least one intermediate passageway (). The apparatus () is operative according to a disinfection mode of predetermined profile in which the heater () heats liquid in the chamber () to produce vapour at or above a target dewpoint temperature and/or humidity level. The apparatus () is arranged such that the vapour is delivered to the intermediate passageway () to disinfect the intermediate passageway () with moist heat throughout a predetermined duration of the disinfection mode. Associated attachments and methods are also provided.

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Auckland, New Zealand

Dean Antony Barker