Electrochemical Sensor

• US 20130123594A1
• Filed: 03/03/2011
• Published: 05/16/2013
• Est. Priority Date: 03/09/2010
• Status: Abandoned Application

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Tsukada, Masashi
• Application Number:
  US13/583,173
• Publication Number:
  US 20130123594A1
• Time in Patent Office: Days
• US Class Current: 600/347
• CPC Class Codes: A61B 2562/043 in a linear array
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: C12Q 1/001 Enzyme electrodes

Abstract

Depletion of an analyte on a surface of an electrode is restrained by increasing a quantity of supply of the analyte to the surface of the electrode. An electrochemical sensor includes a substrate, an electrode provided on the substrate, an external layer film provided on the substrate to cover the electrode, and a groove formed in at least a part of the substrate in a direction of the electrode of the substrate.

Claims

1. An electrochemical sensor comprising:

a substrate;

an electrode to be provided on the substrate;

an external layer film to be provided on the substrate so as to cover the electrode; and

a groove to be formed in at least a part of the substrate in a direction of the electrode of the substrate.

2. The electrochemical sensor according to claim 1, wherein the electrode is provided on the substrate so that at least the part of the electrode is positioned upwardly of the groove.

3. The electrochemical sensor according to claim 1, wherein the electrode is provided, on the substrate, adjacent to the groove.

4. The electrochemical sensor according to claim 1, wherein the substrate is formed with a plurality of grooves.

5. The electrochemical sensor according to claim 1, wherein a plurality of electrodes is provided on the substrate.

6. The electrochemical sensor according to claim 1, wherein the groove is formed in a concave shape.

7. The electrochemical sensor according to claim 1, wherein the groove is formed in a way that extends from an end portion of the substrate toward the direction of the electrode of the substrate.

8. The electrochemical sensor according to claim 4, wherein at least two lines of grooves in the plurality of grooves are connected to each other.

9. The electrochemical sensor according to claim 1, wherein the electrochemical sensor is used in the way of being subcutaneously indwelled.

10. An electrochemical sensor comprising:

a substrate;

an electrode;

a groove to be formed in at least a part of the substrate; and

an external layer film,

wherein the electrode and the external layer film are provided in an interior of the groove.

11. The electrochemical sensor according to claim 10, wherein the external layer film is provided in the interior of the groove so as to cover the electrode.

12. The electrochemical sensor according to claim 10, wherein the groove is formed in a concave shape.

13. The electrochemical sensor according to claim 10, wherein the groove is formed in a way that extends from one end portion of the substrate up to the other end portion of the substrate.

14. The electrochemical sensor according to claim 10, wherein the groove is formed in a longitudinal direction of the substrate.

15. The electrochemical sensor according to claim 10, wherein the electrochemical sensor is used in the way of being subcutaneously indwelled.