Abstract:
A test sample container assembly for loading a plurality of test samples onto a test sample carousel of an automated analytical system and an automated, continuous and random access analytical system containing such test sample container assembly and capable of simultaneously effecting multiple assays of a plurality of liquid samples are disclosed. The test sample container assembly comprises (i) a housing with two parallel curved sides, said sides having the same radius of curvature as the test sample carousel, (ii) a top shelf with at least two openings for receiving test sample containers, (iii) a bottom parallel to and spaced apart from the top shelf defining with the curved surfaces therebetween a cavity, and (iv) wherein said bottom portion and said curved surfaces define a cavity therebetween wherein the at least two openings provide a predefined vertical alignment and the test sample container openings are presented in a plane parallel with the plane of the assembly shelf.
Abstract:
A bubble flushing aspirating and dispensing syringe having precision and volumetric accuracy, particularly for use in an automated, continuous and random access analytical system, is disclosed. The syringe comprises a piston (124) within a bore (128), the bore having seal means at a first end and a closed end (130) at a second end, wherein the piston forms an annulus (138) with the bore wall and seal means, and is capable of reciprocating therein. Fluid inlet (134) and fluid outlet (136) means are in communication with the annulus (138) and bore, the fluid inlet and fluid outlet means being located between the seal means and the bore closed end. A fluid source is in communication with the inlet means and a fluid conduit is in communication with the outlet means and an open-ended release tip. A drive means is connected to the piston for reciprocating the piston within the bore. As a result, fluid from the inlet, when connected to a fluid supply, flows through the annulus (138) around the sides of the piston and out through the fluid outlet to the open-ended tip, thereby creating a cross-flow pattern in the annulus (138) around the piston as it reciprocates in the bore to flush bubbles through the outlet.
Abstract:
A cartridge feeder apparatus for automated diagnostic systems is disclosed. The apparatus comprises a cartridge hopper means for receiving, storing and feeding cartridges (68) to a cartridge orientation mechanism, the cartridge orientation mechanism comprised of two opposed engageable orientation means (239) for engaging and disengaging a cartridge at each end of the cartridge. The cartridge has a funnel opening at a first end and a generally flat bottom at a second end.
Abstract:
The present invention relates to a method of operating an automated, continuous and random access analytical system capable of simultaneously effecting multiple assays in a plurality of liquid samples, comprising the following steps: introducing sample cups, reagent packs, and reaction vessels for performing said assays onto concentric carousels of a front end carousel, the reaction vessels being introduced to an outer carousel; identifying the reagent packs and sample cups; scheduling the assays; aligning the sample cups and reagent packs with a reaction vessel at a kitting station by rotating the respective carousels; kitting a unit dose disposable in a reaction vessel having multiple independent open chambers in accordance with the scheduled assay by transfer of the sample from the sample cup to a reaction vessel chamber and transfer of specific reagents to separate reaction vessel chambers from the reagent pack; transferring the kitted reaction vessel to a process carousel which is maintained under controlled environment conditions; pipetting the sample and various reagents into a reaction well of the reaction vessel, the amounts of reagent, sequencing of transfer and time spacing therebetween being predetermined by assay scheduling; incubating the pipetted sample and reagent mix; identifying and transferring the incubated mixture in the reaction well to one of at least two assay analytical stations; performing an analysis by reading the prepared reaction mixture and calibrating the reading; and recording the resulting assay reading analysis.
Abstract:
Embodiments described herein provide methods of performing a process for determining an item of interest in a sample. In one embodiment, a container for holding the sample is accepted in a process lane where a process step is selectively automatically performed on the sample in the container. The process step is selectively automatically performed on the sample in the container. A physical length of the process lane is selectively varied.
Abstract:
A cartridge feeder apparatus for automated diagnostic systems is disclosed. The apparatus comprises a cartridge hopper means for receiving, storing and feeding cartridges (68) to a cartridge orientation mechanism, the cartridge orientation mechanism comprised of two opposed engageable orientation means (239) for engaging and disengaging a cartridge at each end of the cartridge. The cartridge has a funnel opening at a first end and a generally flat bottom at a second end.
Abstract:
A cartridge feeder apparatus for automated diagnostic systems is disclosed. The apparatus comprises a cartridge hopper means for receiving, storing and feeding cartridges (68) to a cartridge orientation mechanism, the cartridge orientation mechanism comprised of two opposed engageable orientation means (239) for engaging and disengaging a cartridge at each end of the cartridge. The cartridge has a funnel opening at a first end and a generally flat bottom at a second end.
Abstract:
A heater assembly for precision temperature and delivery control of liquids and an automated, continuous and random access analytical system containing such heater assembly and capable of simultaneously effecting multiple assays of a plurality of liquid samples are disclosed. The heater assembly comprises a body having internal resistance heating means and temperature control means, said body having a cavity suitable for accommodating liquid tubing means, said liquid tubing means in communication with liquid inlet and outlet means, wherein said cavity is suitable for housing a tubing means for maintaining liquids at a predetermined temperature, and wherein said liquid outlet means is suitable for forced or gravity release of the liquids and is mounted directly above analytical means for receiving liquids.