Automatic analyzer

Patent metadata

Field	Value
Publication number	US-9255937-B2
Application number	US-201113809280-A
Country	US
Kind code	B2
Filing date	Jul 20, 2011
Priority date	Jul 20, 2010
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

Provided is an automatic analyzer that includes a suction nozzle, a detection container, and a detector. The suction nozzle suctions a sample and a solution used for the detection of the sample. The suctioned sample and the solution are supplied to the detection container. The detector detects a signal from the sample. In addition, a vessel for the sample and a container for the solution are disposed below the detection container.

First claim

The invention claimed is:

1. An automatic analyzer comprising:
a suction nozzle that suctions a solution used for the detection of a sample;
a container that retains the solution used for the detection of the sample;
a drive mechanism that drives a container retaining member to bring a container for the sample and the container for the solution in proximity to the suction nozzle to allow suction of the sample and solution by the suction nozzle, respectively; and
a nozzle that supplies the solution to the container that retains the solution,
wherein the nozzle moves in accordance with the movement of the container moved by the drive mechanism.

2. The automatic analyzer according to claim 1 ,
wherein a piping connected to the nozzle passes through the interior of the drive mechanism.

3. The automatic analyzer according to claim 2 ,
wherein the drive mechanism is driven rotationally and vertically to drive the container remaining member so that the container comes in proximity to the suction nozzle to allow suction of the solution in the container by the suction nozzle; and
wherein the piping connected to the nozzle is positioned toward the center of rotation of the drive mechanism rather than the container.

4. The automatic analyzer according to claim 1 , further comprising:
a temperature retention mechanism that maintains the solution supplied from the nozzle at a predetermined temperature.

5. The automatic analyzer according to claim 1 ,
wherein the piping connected to the nozzle passes through the interior of the drive mechanism; and
wherein a liquid maintained at a predetermined temperature by the temperature retention mechanism flows through the interior of the drive mechanism.

6. The automatic analyzer according to claim 5 , further comprising:
a cleaning tank into which the liquid flows;
wherein the liquid in the cleaning tank is used to clean the suction nozzle.

7. The automatic analyzer according to claim 6 ,
wherein a thermal insulator is disposed between a flow path through which the liquid flowing out of the cleaning tank passes and a flow path through which the liquid flowing into the cleaning tank passes.

8. The automatic analyzer according to claim 1 , wherein the nozzle supplies to the container the same amount of solution as the amount of solution suctioned by the suction nozzle.

9. The automatic analyzer according to claim 1 ,
wherein the nozzle supplies the liquid at a timing earlier than the timing at which the suction nozzle performs the next suctioning operation.

10. An automatic analyzer of claim 1 , further comprising:
a cleaning liquid container holding a cleaning liquid,
wherein the drive mechanism drives the container retaining member to bring the cleaning liquid container in proximity to the suction nozzle to allow suction of the cleaning liquid by the suction nozzle,
wherein another nozzle supplies the cleaning liquid to the cleaning liquid container,
wherein the nozzle and the another nozzle moves in accordance with the movement of the container or the cleaning liquid container moved by the drive mechanism.

Assignees

• Sakashita Yukinori
• Takahashi Katsuaki
• Yamashita Yoshihiro
• Sakazume Taku
• Hitachi High Tech Corp

Inventors

• Sakashita Yukinori
• Takahashi Katsuaki
• Yamashita Yoshihiro
• Sakazume Taku

Classifications

• G01N35/1016

  Control of the volume dispensed or introduced · CPC title

• G01N2035/1025

  Fluid level sensing · CPC title

• G01N2035/0453

  Multiple carousels working in parallel · CPC title

• G01N2035/0443

  for reagents · CPC title

• G01N35/1081 Primary

  characterised by the means for relatively moving the transfer device and the containers in an horizontal plane (G01N35/1011 takes precedence) · CPC title