Search International and National Patent Collections

1. (WO2018004359) IMPROVEMENTS RELATING TO A RESPIRATORY DEVICE

Pub. No.:    WO/2018/004359    International Application No.:    PCT/NZ2017/050084
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Sat Jun 17 01:59:59 CEST 2017
IPC: A61M 16/00
A61M 16/16
Applicants: FISHER & PAYKEL HEALTHCARE LIMITED
Inventors: WRIGHT, Douglas Richard
GRYLLS, Peter Lawrence
SALMON, Andrew Paul Maxwell
DICKINSON, Philip John
SUN, Yi-Cheng
BUTLER, Silvan Terence
FILIP, Sergiu Constantin
SAUNDERS, Samuel William
LETTON, Andrew Martin
Title: IMPROVEMENTS RELATING TO A RESPIRATORY DEVICE
Abstract:
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.