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    54.
    发明专利
    未知

    公开(公告)号：DE69618715D1

    公开(公告)日：2002-03-14

    申请号：DE69618715

    申请日：1996-06-06

    Applicant: MEDICAL LABORATORY AUTOMATION

    Inventor： IANCU FULGA ,  LOVETTE SPENCER M ,  MCCANDLESS WILLIAM

    IPC: G01N35/10 ,  G01N1/00

    Abstract: A fluid is aspirated from a sealed container (12) and a precise quantity of the aspirated fluid is dispensed. The method involves standard steps of inserting a probe (20 into the container (12) through the container seal (14) and aspirating bubbles and the selected quantity of fluid into the probe before removing the probe from the container and dispensing the fluid. The method also includes an additional step performed at at least one stage in the method to assure that, before the dispensing operation is performed, sample fluid in the probe extends to the end of the probe without any fluid extending beyond the end of the probe. For one embodiment of the invention, both the selected quantity of fluid to be dispensed and a selected extra volume of fluid are initially aspirated and, prior to the dispensing step, a selected quantity of the sample which is greater than the maximum amount that air bubbles in the probe might shrink as a result of the pressure in the container being less than the pressure outside the container, but less than the selected extra volume, is wasted. An additional step might be to withdraw a volume of fluid from the probe before the probe is inserted into the container which is substantially equal to the fluid and air bubbles to be aspirated, such fluid being replaced by air entering the probe and then dispensing such volume of air from the probe into the container after the probe has been inserted into the container. A hollow needle (18) may also be inserted into the container prior to the aspiration operation to equalize the pressure inside and outside the container before the above step is performed or, the pressure and air volume in the container may be determined and used to calculate the change in air volume of air bubbles which will occur when the probe is removed from the container and this information used to compensate for such increase or shrinkage when fluid is removed from the probe prior to insertion into the container and when air from the probe is injected into the container after insertion.

    Peristaltic pump with removable tubing of precise length
    55.
    发明专利
    Peristaltic pump with removable tubing of precise length 未知

    公开(公告)号：AU2706195A

    公开(公告)日：1995-09-25

    申请号：AU2706195

    申请日：1995-03-09

    Applicant: MEDICAL LABORATORY AUTOMATION

    Inventor： CALHOUN JEFFREY E ,  WICKHAM TIMOTHY F

    IPC: F04B43/12 ,  F04B43/08

    Abstract: A precision peristaltic pump is provided which assures that a precisely controlled length of tubing is operated upon by the pump. Recesses are provided on either side of a tube receiving gap for the pump, which recesses have different sizes and/or shapes and fittings are provided on the tubing on either side of a precisely determined length of tubing, which fittings are sized and/or shaped so as to only fit in one of the recesses in only a single orientation. This assures that the orientation of the tubing in the pump gap is always the same. The fittings may be a block which is formed on the tubing itself and of the same material as the tubing or may include a stop of a harder material, such as a hard plastic, mounted to or sandwiching each block. The pump is designed so that if one of the fittings is not fully seated in the corresponding recess, the projecting fitting interacts with a cover or other element of the pump to prevent the pump from being moved to its operative position.

    CODED CUVETTE FOR USE IN TESTING APPARATUS
    56.
    发明专利
    CODED CUVETTE FOR USE IN TESTING APPARATUS 未知

    公开(公告)号：AU4650489A

    公开(公告)日：1990-06-12

    申请号：AU4650489

    申请日：1989-11-16

    Applicant: MEDICAL LABORATORY AUTOMATION

    Inventor： FROEHLICH JOHN A ,  ANDERSON ERIC S

    IPC: B01L3/00 ,  G01N21/03

    Abstract: Optical encoding of a cuvette or other object is provided by means of multiple facets molded integrally into flanges or other portions of the object, which facets selectively refract light passing therethrough in accordance with a predetermined code. The detector for the coded light includes a separate detector for each code state of the facets, with the detector having a different output when no facets are between a light source and the detectors. The facets are preferably bevels, which are selectively angled in accordance with the code.

    CODED CUVETTE FOR USE IN TESTING APPARATUS
    57.
    发明专利
    CODED CUVETTE FOR USE IN TESTING APPARATUS 未知

    公开(公告)号：CA2003002A1

    公开(公告)日：1990-05-16

    申请号：CA2003002

    申请日：1989-11-15

    Applicant: MEDICAL LABORATORY AUTOMATION

    Inventor： FROEHLICH JOHN A ,  ANDERSON ERIC S

    IPC: B01L3/00 ,  G01N21/03

    Abstract: Coded Cuvette For Use In Testing Apparatus A cuvette suitable for use with photometric blood testing apparatus and the like. The cuvette includes a recepticle having flanges are flexible to enhance the positioning of the cuvette. Single land dual cuvette embodiments are described. The invention additionally includes means for encoding a cuvette for optical detection thereof by means of multiple facets which reflect light passing therethrough moldedintegrally in the flanges. No. 22871

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