Fisher & Paykel Healthcare Limited

Kieran Michael Orchard

Elmo Benson Stoks

Andre Van Schalkwyk

Laith Adeeb Hermez

Timothy Dee Gierke

Gavin Walsh Millar

Matthew Liam Buswell

Charles Christopher North

Paul James Tonkin

Ping Si

Helgard Oosthuysen

Ian Lee Wai Kwan

Ibrahim Al-Tiay

Matthew Robert Wilson

Thomas James Edwards

Sinaa Alnashi

Helen Cuddy

Matthew Jon Payton

Daniel John Smith

Dexter Chi Lun Cheung

Peter Kenneth Graham

Michael John Andresen

Anthony James Newland

Timothy James Beresford Sharp

Michael Robert Barraclough

Jonathan Mark Church

Philip James Edgeworth

In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.

Humidification system

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

Breathable medical circuit components and materials and methods for forming these components incorporate breathable foamed materials that are permeable to water vapor and substantially impermeable to liquid water and the bulk flow of gases. The materials and methods can be incorporated into a variety of components, including tubes, Y-connectors, catheter mounts, and patient interfaces and are suitable for use in a variety of medical circuits, including insufflation, anesthesia, and breathing circuits.

Components for medical circuits

Growing community of inventors

Hawera, New Zealand

Kieran Michael Orchard