Automatic sample analyzer and its components
First Claim
1. An automatic sample analyzer comprising:
- a pipette;
a pipette driving device which moves the pipette to a sample vessel present in a predetermined position to cause the pipette to suck up a sample from the sample vessel, and then moves the pipette to an open vessel provided in another predetermined position to cause the pipette to discharge the sample into the open vessel; and
an analyzing section for analyzing the discharged sample;
the pipette driving device comprising a vertically movable main arm and an elongated guide arm cantilevered by the main arm and extending horizontally;
the guide arm having a smaller flexural rigidity than the main arm;
wherein the main arm vertically moves the pipette when the sample is to be sucked up from the sample vessel, and the guide arm guides the pipette to the open vessel and then vertically moves the pipette when the sample is to be discharged into the open vessel.
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Accused Products
Abstract
An automatic sample analyzer includes: a pipette, a pipette driving device which moves the pipette to a sample vessel present in a predetermined position to cause the pipette to suck up a sample from the sample vessel, and then moves the pipette to an open vessel provided in another predetermined position to cause the pipette to discharge the sample into the open vessel, and an analyzing section for analyzing the discharged sample, the pipette driving device comprising a vertically movable main arm and an elongated guide arm cantilevered by the main arm and extending horizontally, the guide arm having a smaller flexural rigidity than the main arm, wherein the main arm vertically moves the pipette when the sample is to be sucked up from the sample vessel, and the guide arm guides the pipette to the open vessel and then vertically moves the pipette when the sample is to be discharged into the open vessel.
83 Citations
9 Claims
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1. An automatic sample analyzer comprising:
- a pipette;
a pipette driving device which moves the pipette to a sample vessel present in a predetermined position to cause the pipette to suck up a sample from the sample vessel, and then moves the pipette to an open vessel provided in another predetermined position to cause the pipette to discharge the sample into the open vessel; and
an analyzing section for analyzing the discharged sample;
the pipette driving device comprising a vertically movable main arm and an elongated guide arm cantilevered by the main arm and extending horizontally;
the guide arm having a smaller flexural rigidity than the main arm;
wherein the main arm vertically moves the pipette when the sample is to be sucked up from the sample vessel, and the guide arm guides the pipette to the open vessel and then vertically moves the pipette when the sample is to be discharged into the open vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a pipette;
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9. A pipette driving device comprising:
- a pipette holder for holding a pipette;
a pipette horizontally driving section supporting the pipette holder in a vertically slidable manner for horizontally moving the pipette holder;
a main arm to which the pipette holder is fastened in a horizontally disengageable manner;
a guide arm horizontally extending from the main arm; and
a pipette vertically driving section for vertically moving the main arm and the guide arm;
wherein the pipette holder is vertically moved by the main arm when being fastened to the main arm, and vertically moved in engagement with the guide arm when being disengaged from the main arm.
- a pipette holder for holding a pipette;
Specification