Abstract: A housing pivotally supports a door which is interconnected with an arm carrying a hollow probe. A fillport module is slidable into operative position within the housing. The module supports a resilient fillport having an opening through which fluid passes. The opening has a tapered outer end for sealingly engaging a capillary tube. The probe is disposed within the opening and has an open outer end to receive fluid from a syringe. The probe is movable between an inner position where the outer end of the probe is within the opening when fluid is received from a capillary tube to an outer position where the outer end of the probe is disposed outwardly of the fillport when fluid is received from a syringe. A shoulder on the fillport sealingly engages the outer surface of the probe at all times, and a stop limits inward movement of the probe. A cleaner is carried by the door and is moved into sealing engagement with the fillport module so that a cleaning solution may be passed through the fillport and probe.

Abstract: A disposable liquid reagent cartridge for use with an analytical instrument includes a permanently closed hollow housing, a plurality of separate sealed flexible bags which are preformed independently of the housing and which are subject to damage and tampering if unprotected, at least some of the bags having reagents therein, the bags being supported in operative position within the housing, the housing being formed of the material sufficiently rigid to retain its outer shape and protect the bags supported therein from damage or tampering, connectors supported by the housing and being exposed to the exterior of the housing, and a flexible tube connected between each of the bags and the connectors to provide communication of the reagents between the bags and the connectors.