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Solar‐powered ventilator alarm
Author(s) -
BARNETT T.G.,
KOEZE T.H.
Publication year - 1980
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1980.tb03803.x
Subject(s) - alarm , medicine , mechanical ventilator , electrical engineering , automotive engineering , anesthesia , mechanical ventilation , engineering
Summary A ventilator alarm device is described with some unique features. It has a very low current consumption. This allows prolonged operation from small batteries which may be recharged from the ambient light in the room. The device is automatically activated and de‐activated by the pressure wave from the ventilator. No external switches or other controls are necessary. The very small size means that the device can be directly attached to a ventilator ‘in line’ with the ventilator circuit. There are no tubing connexions between the ventilator and the alarm device and no separate shelf‐space is required.