Sample analyzer and its components
First Claim
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1. A blood cell analyzer, comprising;
- a diluent chamber;
a first flow path for transporting a diluent contained in a diluent container to the diluent chamber;
a pump for supplying a negative pressure for transporting the diluent from the diluent container to the diluent chamber through the first flow path;
an air bubble sensor for detecting an air bubble in the first flow path;
a second flow path for communicating the diluent chamber and the pump which supplies the negative pressure to the diluent container through the second flow path, the diluent chamber and the first flow path;
a valve for opening and closing the second flow path; and
a controller for controlling the valve so that the valve closes the second flow path when the air bubble sensor of the first flow path has kept detecting the air bubble for a time period longer than a first predetermined time period.
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Abstract
A sample analyzer includes a liquid aspirator to be stuck into the closed container for aspirating a sample from a closed container; a preparing section for preparing an analysis sample using the aspirated sample; and an analyzing section for analyzing the prepared analysis sample; the liquid aspirator including an elongated pipe, the pipe having a liquid flow path extending therein and a plurality of communicating sections provided in an outer surface thereof, at least one of the communicating sections communicating between an inside and an outside of the container when the pipe is stuck into the container.
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Citations
13 Claims
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1. A blood cell analyzer, comprising;
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a diluent chamber; a first flow path for transporting a diluent contained in a diluent container to the diluent chamber; a pump for supplying a negative pressure for transporting the diluent from the diluent container to the diluent chamber through the first flow path; an air bubble sensor for detecting an air bubble in the first flow path; a second flow path for communicating the diluent chamber and the pump which supplies the negative pressure to the diluent container through the second flow path, the diluent chamber and the first flow path; a valve for opening and closing the second flow path; and a controller for controlling the valve so that the valve closes the second flow path when the air bubble sensor of the first flow path has kept detecting the air bubble for a time period longer than a first predetermined time period. - View Dependent Claims (2, 3, 4, 10, 11)
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5. A blood cell analyzer, comprising:
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a diluent chamber; a first flow path for transporting a diluent contained in a diluent container to the diluent chamber; a pump for supplying a negative pressure for transporting the diluent from the diluent container to the diluent chamber through the first flow path; a sensor for detecting whether the diluent exists or not in the first flow path; a second flow path for communicating the diluent chamber and the pump which supplies the negative pressure to the diluent container through the second flow path, the diluent chamber and the first flow path; a valve for opening and closing the second flow path; and a controller for controlling the valve so that the valve closes the second flow path when the sensor has detected that the diluent does not exist in the first flow path. - View Dependent Claims (6, 7, 8, 9, 12, 13)
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Specification