| 摘要 |
This invention relates to non-contact monitoring devices, and more particularly, non-contact respiration monitoring devices. According to the invention there is provided a monitoring device having a body (10) defining an air monitoring channel (11) between an air inlet (12) and an air outlet (13). Disposed in monitoring channel is a respiration detection (14) means, such as a flap-valve, which operates with associated logic circuitry (16) to report the presence or absence of respiration via visual and audible displays (18, 19, 20). The device may be configured to attached, or be integrally connected to, the air input orifice (32) of an air filter canister (31) of a gas mask (30) or the like. Alternatively, the device may be associated with the air output orifices or valves of a gas mask (30) or the like. |
