Abstract: A front-end system accepts samples and selectively provides aliquots of those samples to selected clinical chemistry analyzers coupled to the front-end system. The front-end system is coupled to an assembly of one or more clinical chemistry analyzers that might, for example, provide complementary analytical tools so that the overall system of front-end system and clinical chemistry analyzers provides a predetermined broad range of clinical analytical testing. The testing protocols for samples input to the overall system can be independently determined. Any sample may undergo a test within one or more of the clinical chemistry analyzers or a series of tests within a single or more typically within plural ones of the analyzers, depending upon the testing sequence defined in for that sample. The front-end system automatically identifies samples, draws aliquots, and transports the aliquots to the one or more clinical chemistry analyzers coupled to the front-end system.

Abstract: A workstation for integrating two or more automated analyzers. The workstation includes a sample rack handler assembly, having a single common sample rack input area for loading sample racks for the two or more automated analyzers, and a sample rack bypass area for passing sample racks to be processed by one of the two or more automated analyzers. The workstation also includes a sample aliquoting assembly, having a sample pipetter station for aliquoting samples into aliquot vessels for processing by another one of the two or more automated analyzers. The workstation further includes an internal shuttle for shuttling the sample racks between the sample rack input area, the sample rack bypass area, and the sample pipetter station, and an external shuttle for shuttling the sample racks between the sample rack input area, the sample rack bypass area, and the one of the two or more automated analyzers.

Abstract: A workstation for integrating two or more automated analyzers. The workstation includes a sample rack handler assembly, having a single common sample rack input area for loading sample racks for the two or more automated analyzers, and a sample rack bypass area for passing sample racks to be processed by one of the two or more automated analyzers. The workstation also includes a sample aliquoting assembly, having a sample pipetter station for aliquoting samples into aliquot vessels for processing by another one of the two or more automated analyzers. The workstation further includes an internal shuttle for shuttling the sample racks between the sample rack input area, the sample rack bypass area, and the sample pipetter station, and an external shuttle for shuttling the sample racks between the sample rack input area, the sample rack bypass area, and the one of the two or more automated analyzers.

Abstract: A system for analyzing a chemical reaction provides control of the temperature and volume of the reagents to improve the accuracy and precision in quantitative measurements of specific proteins and other immunochemistries in body fluids. The reaction occurs in a cuvette within a nephelometric optics module. A sensor senses the temperatures of reaction buffer liquids as they flow into the cuvette, and a heat exchanging device increases or decreases the temperatures of the buffer liquids. A control circuit responsive to the temperature sensor controls the heat exchanging device to maintain the temperature of the buffer liquids and the cuvette within a selected temperature range. The system may also include a sample pickup station, a sample probe for withdrawing a selected sample from the sample pickup station, a sample preparation station, and transport device for carrying said sample from the sample preparation station to the reaction cuvette.

Abstract: A system for analyzing a chemical reaction provides control of the temperature and volume of the reagents to improve the accuracy and precision in quantitative measurements of specific proteins and other immunochemistries in body fluids. The reaction occurs in a cuvette within a nephelometric optics module. A sensor senses the temperatures of reaction buffer liquids as they flow into the cuvette, and a heat exchanging device increases or decreases the temperatures of the buffer liquids. A control circuit responsive to the temperature sensor controls the heat exchanging device to maintain the temperature of the buffer liquids and the cuvette within a selected temperature range. The system may also include a sample pickup station, a sample probe for withdrawing a selected sample from the sample pickup station, a sample preparation station, and a sample transport for carrying said sample from the sample preparation station to the reaction cuvette.

Abstract: A bias fabric having parallel, spaced-apart yarns oriented .+-.45.degree. relative to the long axis of the fabric is formed by directing one or more pluralities of the yarns back and forth across the width of the fabric and securing the yarns around pins mounted on movable conveyors at the opposite sides of the fabric. Alternatively, the yarns are mounted on strips of film with the film strips being secured to the opposite conveyors. In one preferred embodiment one or more elongated yarn laying units arranged to supply yarns through apertures along the length thereof are cycled laterally between the opposite conveyors as the conveyors are moved at a controlled speed to form a 2-ply fabric, the yarns being wrapped around pins on the opposite conveyors using an adjustable roller arrangement mounted on the shuttle or a plurality of pin mounting rings the alternate ones of which move in unison so as to engage odd and then even numbered yarns in the yarn array.