Analyzer having temperature sensor

• US 20050019219A1
• Filed: 01/14/2003
• Published: 01/27/2005
• Est. Priority Date: 01/18/2002
• Status: Active Grant

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Shiraki, Yasunori, Oshiman, Eisaku
• Granted Patent: US 7,655,456 B2
• Time in Patent Office: Days
• US Class Current: 422/82.120
• CPC Class Codes: G01K 1/16 Special arrangements for conducting heat from the object to the sensitive element
• CPC Class Codes: G01N 27/3273 Devices therefor, e.g. test element readers, circuitry details not specific to biochemical electrodes G01N33/4875
• CPC Class Codes: G01N 27/3274 Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration coding of calibration information G01N33/48771

Abstract

The present invention relates to an analytical device (X1) including a mounting portion (10) for mounting an analytical tool (2) capable of outputting information for computation, a computation unit for conducting computation for analyzing a sample based on the information for computation, and a temperature detection unit (12) for outputting the temperature information. The temperature detection unit (12) is disposed in the mounting portion (10). The analytical device (X1) preferably further includes a temperature correction unit for correcting the computation results obtained in the computation unit, based on the temperature information. The temperature detection unit (12) includes, for example, a contact type temperature sensor (12A). In this case, the contact type temperature detection unit (12) may include a thermally conductive portion (12B) having a contact surface (12b) to be brought into contact with the temperature sensor (12A) and the analytical tool (2).

Claims

1. A temperature detecting analytical device comprising a mounting portion for mounting an analytical tool capable of outputting information for computation, a computation unit for conducting computation for analyzing a sample based on said information for computation, and a temperature detection unit for outputting the temperature information, wherein

said temperature detection unit is disposed in said mounting portion.

2. The temperature detecting analytical device according to claim 1, which further comprises a temperature correction unit for correcting the computation results obtained in said computation unit, based on said temperature information.

3. The temperature detecting analytical device according to claim 1, wherein said temperature detection unit comprises a contact type temperature sensor.

4. The temperature detecting analytical device according to claim 3, wherein said temperature detection unit comprises a thermally conductive portion having a contact surface to be brought into contact with said temperature sensor and said analytical tool.

5. The temperature detecting analytical device according to claim 4, wherein said thermally conductive portion is formed from a material with a thermal conductivity of higher than 0.10 cal/(°

C.·

cm·

sec).

6. The temperature detecting analytical device according to claim 5, wherein said thermally conductive portion is formed from a material with a thermal conductivity of higher than 0.15 cal/(°

C.·

cm·

sec).

7. The temperature detecting analytical device according to claim 5, wherein said thermally conductive portion is formed from iron, copper, aluminum, alloys containing at least one of those metals as the main component, and ceramics.

8. The temperature detecting analytical device according to claim 4, wherein said temperature sensor and said thermally conductive portion are disposed in said mounting portion in which they are sealed with a resin package.

9. The temperature detecting analytical device according to claim 3, wherein said temperature detection unit comprises a contact type temperature sensor, and

the temperature sensor is disposed so as to be in direct contact with said analytical tool when said analytical tool is mounted on said mounting portion.

10. The temperature detecting analytical device according to claim 1, wherein said temperature detection unit comprises a non-contact type temperature sensor.

11. The temperature detecting analytical device according to claim 1, wherein when an analytical tool comprising a reagent portion is used as said analytical tool,

said temperature detection unit is disposed so as to be located in the region directly below or in the region directly above said reagent portion when said analytical tool is mounted on said mounting portion.

12. The temperature detecting analytical device according to claim 11, wherein said reagent portion comprises an enzyme.

13. The temperature detecting analytical device according to claim 12, wherein said enzyme has a catalytic action with respect to the oxidation reaction of glucose.

14. The temperature detecting analytical device according to claim 1, wherein said analytical tool is disposable.

15. The temperature detecting analytical device according to claim 1, wherein said mounting portion comprises an insertion portion for inserting the end portion of said analytical tool and a table portion for installing said analytical tool,

said temperature detection unit being disposed in said table portion.

16. The temperature detecting analytical device according to claim 15, wherein said table portion protrudes to the side of said analytical device.

17. The temperature detecting analytical device according to claim 15, wherein a push-down portion for pushing said analytical tool down with respect to said table portion is disposed in said mounting portion.

18. The temperature detecting analytical device according to claim 17, wherein when an analytical tool comprising an output unit for outputting said information for computation is used as said analytical tool,

said push-down portion has a capability of being brought into contact with said output unit and inputting said information for computing.

19. The temperature detecting analytical device according to claim 18, wherein said push-down portion is a plate spring formed from a conductor.