Liquid ingress control for a gas monitor

Details Liquid ingress control for a gas monitor Liquid ingress control for a gas monitor

1993-05-07

1995-03-07

Cohen, Lee S.

Surgery

Truss

Pad

12820512, 12820527, A61B 508

Patent

active

053948815

ABSTRACT:
Liquid incursion into the gas analyzer or monitoring components of a gas analyzer of a variety employed in medical practice is prevented by a sequence of components performing under computer control. A liquid detector is positioned immediately downstream of the liquid separator/trap of the apparatus to detect any failure of that separating system. Should an incursion occur, the output of the detector will cause a safety valve to block further passage of materials into the monitoring components. The removable separator/trap components are monitored by interlock sensors. Upon appropriate signaling of such removal, a purging valve is actuated to employ atmospheric air made available by the removal of the separator/trap unit to purge the encroaching liquid from the forward components of the analyzer assembly.

REFERENCES:
patent: 4197858 (1980-04-01), Osborn
patent: 4799374 (1989-01-01), Bossart et al.

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