Fisher & Paykel Healthcare Limited

Peter Lawrence Grylls

Andrew Paul Maxwell Salmon

Melissa Catherine Bornholdt

Bruce Michael Walls

Christopher Earl Nightingale

Yi-Cheng Sun

Douglas Richard Wright

Paul Fleming Buckley

Philip John Dickinson

Andrew Martin Letton

Silvan Terence Butler

Sergiu Constantin Filip

Samuel William Saunders

The invention relates to a breathing assistance apparatus that may be configured to reduce the risk of damage to electronics within the apparatus as a result of liquid leaks within the apparatus or impacts to the apparatus. In other forms, the apparatus may be configured to allow for easy assembly and/or safe operation.

Respiratory device

A breathing assistance apparatus that comprises a housing with inner and outer walls and an upper surface, wherein the walls and upper surface are integrally formed as a single part to avoid seams or joins between the walls to reduce the risk of damage to electronics within the apparatus as a result of liquid leaks. Also disclosed is a control system for a heating element of a humidifier which provides a secondary or back up protection mechanism to disable power to the heating element if a first electronic protection circuit does not cause the first switching member to disable power to the heating element.

Relating to a respiratory device

Breathing apparatus

Breathing assistance apparatus

Electrical/pneumatic connector

Growing community of inventors

Auckland, New Zealand

Peter Lawrence Grylls