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113 records (took 0.024 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE69231784T2

    公开(公告)日：2001-08-02

    申请号：DE69231784

    申请日：1992-12-22

    Applicant: ALOKA CO LTD ,  ABBOTT LAB

    Inventor： KAWANABE JUNICHI ,  TAKEDA MASAAKI ,  KATAGI HITOMI ,  KATO YUKO ,  PELLETIER ALLEN

    IPC: G01F23/14 ,  G01N35/10

    Abstract: Purpose: to judge shortage of a discharge quantity, by identifying the presence of any bubbles at the time of discharge. Constitution: characteristics (101) involving bubbles provides a different internal pressure of a nozzle at nearly the end of discharge of a sample than that provided by characteristics (100) not involving bubbles. The nozzle internal pressure is detected at the time of judgement (105), and this detection value is compared with a threshold value. Accordingly, the occurrence of the bubbles can be judged, and shortage of a discharge quantity is judged on the basis of this judgement to give an alarm.

    4.
    发明专利
    未知

    公开(公告)号：DE69231784D1

    公开(公告)日：2001-05-17

    申请号：DE69231784

    申请日：1992-12-22

    Applicant: ALOKA CO LTD ,  ABBOTT LAB

    Inventor： KAWANABE JUNICHI ,  TAKEDA MASAAKI ,  KATAGI HITOMI ,  KATO YUKO ,  PELLETIER ALLEN

    IPC: G01F23/14 ,  G01N35/10

    Abstract: Purpose: to judge shortage of a discharge quantity, by identifying the presence of any bubbles at the time of discharge. Constitution: characteristics (101) involving bubbles provides a different internal pressure of a nozzle at nearly the end of discharge of a sample than that provided by characteristics (100) not involving bubbles. The nozzle internal pressure is detected at the time of judgement (105), and this detection value is compared with a threshold value. Accordingly, the occurrence of the bubbles can be judged, and shortage of a discharge quantity is judged on the basis of this judgement to give an alarm.

    7.
    发明专利
    未知

    公开(公告)号：DE60306699D1

    公开(公告)日：2006-08-24

    申请号：DE60306699

    申请日：2003-02-28

    Applicant: ALOKA CO LTD

    Inventor： TAKEDA MASAAKI ,  SAITO TAKAYOSHI

    IPC: B01L3/02 ,  G01N1/00 ,  B01J4/00 ,  B01J4/02 ,  G01N35/10

    Abstract: In an improvement of a nozzle tip for a pipetting apparatus which is adapted to be removably attached to a nozzle base of the pipetting apparatus, the nozzle tip includes a head portion having an opening adapted to fit onto the nozzle base, a cylindrical portion extending downward from the head portion. a tip portion provided on the lower side of the cylindrical portion and having a tip opening for aspirating and dispensing a liquid, the tip portion having a diameter smaller than the diameter of the cylindrical portion, and a step portion formed between the cylindrical portion and the tip portion. A plurality of fins are integrally formed from the lower end portion of the cylindrical portion to the peripheral surface of the tip portion through the step portion with the same spacing in a circumferential direction for making the insertion of the nozzle tip into an upper opening of a target container smoothly and for structurally reinforcing the step portion.

    AUTOMATIC PIPETTING APPARATUS WITH LEAK DETECTION AND METHODOF DETECTING A LEAK
    8.
    发明专利
    AUTOMATIC PIPETTING APPARATUS WITH LEAK DETECTION AND METHODOF DETECTING A LEAK 未知

    公开(公告)号：CA2221732C

    公开(公告)日：2002-09-17

    申请号：CA2221732

    申请日：1996-05-13

    Applicant: ABBOTT LAB ,  ALOKA CO LTD

    Inventor： TAKEDA MASAAKI ,  KATO YUKO ,  PELLETIER BRENT ALLEN

    IPC: G01M3/26 ,  G01N35/10 ,  B01L3/02

    Abstract: Embodiments described herein provide a pipetting apparatus with leak detecti on and a method for detecting a leak. In one embodiment, an automatic pipetting apparatus comprises a nozzle having a lower end portion through which a flui d sample is aspirated and dispensed by changes in air pressure supplied to the nozzle. A piping system operatively connects the nozzle to a pump for supplying the air pressure to the nozzle. A pressure sensor is operatively connected with the piping system for measuring internal pressure in the pipi ng system. Means is operatively connected with the nozzle for three-dimensional ly moving the nozzle between an aspirating position of the fluid sample and a dispensing position. Leak detecting means is operatively connected with the pressure sensor for detecting a leak in the piping system based upon a measured result obtained by measuring the internal pressure in the piping system with the pressure sensor while the nozzle, which has aspirated a predetermined volume of the fluid sample, is being moved between the aspirating position and the dispensing position by the moving means.

    10.
    发明专利
    未知

    公开(公告)号：DE60306699T2

    公开(公告)日：2007-08-02

    申请号：DE60306699

    申请日：2003-02-28

    Applicant: ALOKA CO LTD

    Inventor： TAKEDA MASAAKI ,  SAITO TAKAYOSHI

    IPC: B01L3/02 ,  G01N1/00 ,  B01J4/00 ,  B01J4/02 ,  G01N35/10

    Abstract: In an improvement of a nozzle tip for a pipetting apparatus which is adapted to be removably attached to a nozzle base of the pipetting apparatus, the nozzle tip includes a head portion having an opening adapted to fit onto the nozzle base, a cylindrical portion extending downward from the head portion. a tip portion provided on the lower side of the cylindrical portion and having a tip opening for aspirating and dispensing a liquid, the tip portion having a diameter smaller than the diameter of the cylindrical portion, and a step portion formed between the cylindrical portion and the tip portion. A plurality of fins are integrally formed from the lower end portion of the cylindrical portion to the peripheral surface of the tip portion through the step portion with the same spacing in a circumferential direction for making the insertion of the nozzle tip into an upper opening of a target container smoothly and for structurally reinforcing the step portion.

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