A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
340/147
A61M 16/00 (2006.01) A61B 5/08 (2006.01) A62B 7/00 (2006.01) G08B 21/00 (2006.01) G08B 21/04 (2006.01) A61M 39/10 (2006.01)
Patent
CA 1144260
ABSTRACT OF THE DISCLOSURE This invention is directed to: a ventilator disconnection alarm consisting of warning means for producing an audible warning, a power supply device, and a switch operated by the occurrence of each breath deli- vered to a patient connected to said ventilator. The switch is connected to circuit means arranged to initiate operation of the warning means unless operation of the switch due to the occurence of a breath occurs at predetermined short inter- vals of time. The switch is further connected to "alarm- permitting" circuitry in such a manner that operation of the switch causes the "alarm-permitting" circuitry to enter a mode such that actuating power is allowed to pass to the warning means, and additional manually operable switch means connected to the "alarm-permitting" circuitry such that momen- tary operation of the manually operable switch means causes the "alarm-permitting" circuitry to leave the mode whereby actuating power is not allowed to pass to said warning means.
346571
Bereskin & Parr
Hodgson William R.
LandOfFree
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