ANALYZING TOOL

• US 20110042212A1
• Filed: 04/12/2008
• Published: 02/24/2011
• Est. Priority Date: 04/12/2007
• Status: Abandoned Application

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Kimura, Sadaaki, Kusaka, Yasuhide
• Application Number:
  US12/450,776
• Publication Number:
  US 20110042212A1
• Time in Patent Office: Days
• US Class Current: 204/412
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
• CPC Class Codes: A61B 2562/125 characterised by the manufacture of electrodes
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/150274 Manufacture or production processes or steps for blood sampling devices
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150564 Protectors removed by pulling or pushing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/150702 fully automatically removed, i.e. the removing does not require any action by the user
• CPC Class Codes: A61B 5/151 Devices specially adapted for taking samples of capillary blood, e.g. by lancets , needles or blades
• CPC Class Codes: A61B 5/15107 Piercing being assisted by a triggering mechanism
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15123 comprising magnets or solenoids
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 : fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: C12Q 1/001 : Enzyme electrodes
• CPC Class Codes: G01N 27/3271 : Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood amperometry per se G01N27/49; aspects concerning the enzyme reagent C12Q1/001

Abstract

The present invention relates to an analyzing tool including: a plurality of electrodes 10, 11 and 12 formed in an annular shape with stacked on one another in an axial direction; and a specimen layer formed in an interior of at least one of the plurality of electrodes 10, 11 and 12. The analyzing tool according to the present invention may be configured to include: a first electrode formed in an annular shape; a second electrode formed in an annular shape and inserted through an interior of the first electrode with a space from an inner peripheral surface of the first electrode; and a specimen layer formed between the inner peripheral surface of the first electrode and an outer peripheral surface of the second electrode.

Claims

1. An analyzing tool comprising:

a plurality of electrodes formed in an annular shape with stacked on each other in an axial direction; and

a specimen layer formed in an interior of at least one of the plurality of electrodes.

2. The analyzing tool as claimed in claim 1, wherein an insulation layer is interposed between the adjacent electrodes in the plurality of electrode.

3. The analyzing tool as claimed in claim 2, wherein the insulation layer electrically joins the adjacent electrodes with each other.

4. The analyzing tool as claimed in claim 1, wherein the adjacent electrodes in the plurality of electrode are coupled with each other by an insulation tube provided to mantle these electrodes with a certain space therebetween.

5. The analyzing tool as claimed in claim 4, wherein the insulation tube is a heat-shrinkable tube.

6. The analyzing tool as claimed in claim 1, further comprising a sealing member for embracing outer peripheral surfaces of the plurality of electrodes.

7. The analyzing tool as claimed in claim 6, wherein the sealing member has through holes for exposing part of the outer peripheral surfaces of the plurality of electrodes.

8. The analyzing tool as claimed in claim 1, wherein the plurality of electrodes include a working electrode and a counter electrode.

9. The analyzing tool as claimed in claim 8, wherein the plurality of electrodes further include a detection electrode for detecting supply of a specimen to interiors of these electrodes.

10. The analyzing tool as claimed in claim 1, wherein interiors of the plurality of electrodes are configured to exert a capillary force.

11. The analyzing tool as claimed in claim 1, wherein an insulation layer is provided on an end surface of an outermost one in the plurality of electrodes.

12. An analyzing tool comprising:

a first electrode formed in an annular shape;

a second electrode formed in an annular shape and inserted through an interior of the first electrode with a space from an inner peripheral surface of the first electrode; and

a specimen layer formed between the inner peripheral surface of the first electrode and an outer peripheral surface of the second electrode.

13. The analyzing tool as claimed in claim 12, wherein an end section of the second electrode projects from an end surface of the first electrode.

14. The analyzing tool as claimed in claim 12, wherein an end section of the second electrode is retracted behind an end surface of the first electrode.

15. The analyzing tool as claimed in claim 12, wherein an end section of the second electrode projects from an end surface of the first electrode, and another end section of the second electrode is retracted behind another end surface of the first electrode.

16. The analyzing tool as claimed in claim 12, wherein

the first electrode and the second electrode are joined with each other by an adhesive, and

the adhesive is supplied into through holes formed in the first electrode and further adherently extended to an outer peripheral surface of the second electrode.

17. The analyzing tool as claimed in claim 12, wherein the first electrode is a working electrode, and the second electrode is a counter electrode.

18. The analyzing tool as claimed in claim 17, wherein the specimen layer is formed on an inner peripheral surface of the first electrode.

19. The analyzing tool as claimed in claim 12, wherein a space between the inner peripheral surface of the first electrode and the outer peripheral surface of the second electrode is configured to exert a capillary force.

20. The analyzing tool as claimed in claim 12, wherein at least one of an end surface and an inner surface in a lower end section of the second electrode is hydrophobized.