Fisher & Paykel Healthcare Limited

Fisher & Paykel Limited

Malcolm David Smith

Kaumali Prasangika Abeysinghe

Paul John Seakins

Oosthuysen, Helgard

Mohammad Thudor

Kiel Anthony McCool

Daniel John Smith

David Robert Kemps

Gavin Walsh Millar

David John Sims

Po-Yen Liu

Anthony James Newland

David Leon McCauley

Matthew Liam Buswell

Peter Alan Seekup

Paul James Tonkin

Thomas Jacques Fernand Maeckelberghe

Ping Si

Matthew Robert Wilson

Helgard Oosthuysen

Christopher Gareth Sims

Ian Lee Wai Kwan

Thomas James Edwards

Hussein Kadhum

Callum McDonald Ross

Sinaa Alnashi

Katja Munkelt

Brendan Thomas Vercoelen

Seth Mclay Frater

Yayi Lin

Craig Karl White

Brett John Huddart

Peter John Leonard

Scott Robert Mackie

Kiel Anthony Mccool

Callum Mcdonald Ross

David Leon Mccauley

A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.

Medical tubes for respiratory systems

Some embodiments provide for an inspiratory limb for a breathing circuit that includes a first segment that comprises a first heater wire circuit and a second segment that comprises a second heater wire circuit. The inspiratory limb can include an intermediate connector that includes a connection circuit that electrically couples the first heater wire circuit to the second heater wire circuit. The inspiratory limb can be configured to operate in two modes wherein, in a first mode, electrical power passes through the first electrical connection to provide power to the first heater wire circuit without providing power to the second heater wire circuit, and in a second mode, electrical power pass through the first electrical connection to provide power to both the first heater wire circuit and the second heater wire circuit.

Zone heating for respiratory circuits

A respiratory assistance apparatus includes a conduit connecting a flow generator and an outlet. The conduit includes a venture formation. The apparatus further includes an oxygen inlet in fluid communication or selective fluid communication with an oxygen outlet. The oxygen outlet is directed into the conduit and toward a mouth of the venture formation. The flow generator provides a flow path for air to enter the conduit when the flow generator is not operating.

Respiratory assistance apparatus

A respiratory assistance apparatus includes a conduit connecting a flow generator and an outlet. The conduit includes a venturi formation. The apparatus further includes an oxygen inlet in fluid communication or selective fluid communication with an oxygen outlet. The oxygen outlet is directed into the conduit and toward a mouth of the venturi formation. The flow generator provides a flow path for air to enter the conduit when the flow generator is not operating.

A humidifier and humidity sensor used with a breathing assistance apparatus. The humidity sensor can sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier can also control independently the humidity and temperature of the gases. Further, a chamber manifold can facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit can provide a more effective temperature profile along its length.

Breathing assistance apparatus

A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes senor(s) to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.

A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.

A gases transportation pathway for use in supplying a humidified gases stream to a patient includes regulated conduit heating. The regulated conduit heating may include a section of positive temperature coefficient material wherein the localized electrical resistance of the material is positively related to the localized temperature. The regulated conduit heating may be a layer of positive temperature coefficient material within the wall of the gases transportation pathway with at least a pair of conductors running the length of the pathway and in electrically conductive contact with the positive temperature coefficient material.

Humidified gases delivery apparatus

Humidifier with parallel gas flow paths

A gases delivery conduit for the supply of humidified medical gases as formed from an extruded plastic tube. The extruded plastic tube includes at least one heating element embedded within the wall of the tube. The heating element includes a pair of electrical conductors separated by a positive temperature coefficient material wherein the localised resistance of the material is positively related to the localised temperature.

Gases delivery conduit

A housing for a sensor to prevent condensate from collecting in the sensor. The housing includes a deflector to channel condensate forming in the housing away from the sensor. A notch is provided at the base of the sensor to ensure any condensate forming on the sensor itself does not collect at the sensor base. Further the interior of the housing is roughened and treated with an antifogging agent to ensure any condensate falls continuously so droplets do not form.

Respiratory humidification system

Growing community of inventors

Auckland, New Zealand

Malcolm David Smith