MEASURING DEVICE, MEASURING APPARATUS AND METHOD OF MEASURING

• US 20100273270A1
• Filed: 04/28/2010
• Published: 10/28/2010
• Est. Priority Date: 10/28/2005
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: NAKAMINAMI, Takahiro, KAMEI, Akihito, FUKUNAGA, Atsushi
• Granted Patent: US 8,399,259 B2
• Time in Patent Office: Days
• US Class Current: 436/149
• CPC Class Codes: G01N 2035/1062 for testing the liquid while it is in the transfer device
• CPC Class Codes: G01N 21/03 Cuvette constructions
• CPC Class Codes: G01N 21/255 Details, e.g. use of specially adapted sources, lighting or optical systems
• CPC Class Codes: G01N 21/59 Transmissivity G01N21/25 takes precedence

Abstract

The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement.

Claims

1-14. -14. (canceled)

15. A method for measuring concentrations of a first and second analytes contained in a sample utilizing a measuring device, comprising following steps (A) to (F):

a step (A) of preparing an analysis the measuring device,

wherein the measuring device comprises a second member, a third member, and a cover member,

the third member is interposed between the second member and the cover member,

a first container is formed between the cover member and the third member,

a second container is formed between the second member and the third member,

one end of the measuring device comprises a first sample supply inlet and a second sample supply inlet which communicate with the first container and the second container respectively,

the other end of the measuring device comprises a sucking port which communicates with the second container and an air vent which communicates with the first container,

a pair of electrodes are provided in the first container, and

a reagent for optical measurement is provided in the second container,

a step (B) of immersing the first sample inlet and the second sample inlet with the sample to suck the sample into the first container through the first supply inlet with capillarity after the step (A),

a step (C) of determining whether the sample is sucked into the first container or not, and sucking the sample from the second supply inlet toward the sucking port to supply the sample into the second container if the sample is sucked into the first container after the step (B),

a step (D) of measuring the concentration of the first analyte contained the sample sucked into the first container with the pair of electrodes,

a step (E) of dissolving the reagent with the sample supplied into the second container, and

a step (F) of irradiating the sample dissolving the reagent to measure the concentration of the second analyte contained the sample dissolving the reagent after the step (E).

16. A method of claim 15, wherein the step (F) is carried out after the step (D).

17. A method of claim 15, wherein the step (D) is carried out after the step (F).

18. A method of claim 15, wherein the distance Y from the first sample supply inlet to the tip of the pair of electrodes is longer than the distance X from the second sample supply inlet to the reagent.

19. A method of claim 15, wherein the first container is subjected to a hydrophilic treatment.

20. A method of claim 15, the first sample supply inlet an the second sample supply inlet are pulled out of the sample after the step (C).