Abstract: A relief valve assembly for use with a ventilator to selectively release pressure from within a breathing tube. The relief valve assembly can be attached and removed from the ventilator as a single unit. The relief valve assembly includes a sealing member that is movable by operating components within the ventilator to either seal or open at least one relief port contained within the relief valve assembly.

Abstract: A relief valve assembly for use with a ventilator to selectively release pressure from within a breathing tube. The relief valve assembly can be attached and removed from the ventilator as a single unit. The relief valve assembly includes a sealing member that is movable by operating components within the ventilator to either seal or open at least one relief port contained within the relief valve assembly.

Abstract: A device for analyzing liquid body-specimens, the device comprising at least one specimen handling station for obtaining preparation on a carrying media, and an imaging station fitted with an optical image capturing device for analyzing the preparation. A carriage with a carrying media receptacle rotatably retains the carrying media and is displaceable between a loading position and an unloading position with respective positions at the stations. An incremental displacement mechanism for displacing at least one of the carrying media and an imaging device so as to obtain at least one consecutive image of the preparation.