Disposable electrochemical sensor strip

• US 7,740,746 B2
• Filed: 05/02/2006
• Issued: 06/22/2010
• Est. Priority Date: 06/17/2003
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Huang, Chun-Mu
• Primary Examiner(s): Wilkins, III; Harry D
• Assistant Examiner(s): Ripa; Bryan D.
• Application Number:
  US11/415,720
• Publication Number:
  US 20060196768A1
• Time in Patent Office: 1,512 Days
• Field of Search: 204/403.04, 204/403.01, 204/403.02
• US Class Current: 204/403.04
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52

Abstract

A disposable electrochemical sensor strip is provided. The sensor strip includes an isolating sheet having at least a through hole, at least a conductive raw material mounted in the through hole, a metal film covered on the conductive raw material to form an electrode which comprises an electrode working surface for processing an electrode action, and an electrode connecting surface, at least a printed conductive film mounted on the isolating sheet and having a connecting terminal for being electrically connected to the electrode connecting surface, and a signal output terminal for outputting a measured signal produced by the electrode action.

Claims

1. A disposable electrochemical sensor strip, comprising:

at least a conductive raw material;

a metal film coated on said conductive raw material for forming an electrode which comprises an electrode working surface for processing an electrode action, and a signal output terminal for directly outputting a measured signal; and

an insulation piece having at least a through hole into which the conductive raw material and the metal film are mounted.

2. The sensor strip according to claim 1 further comprising a chemical reagent mounted on said electrode working surface for detecting an analyte contained in a fluid sample through reacting with said analyte so as to generate said measured signal which is then directly outputted through said signal output terminal.

3. The sensor strip according to claim 1 wherein said conductive raw material and said metal film are fully received in said through hole.

4. A disposable electrochemical sensor strip, comprising:

at least a conductive raw material;

a metal film coated on said conductive raw material for forming an electrode for directly outputting a measured signal; and

an insulation piece having at least a through hole into which the conductive raw material and the metal film are mounted.

5. The sensor strip according to claim 4 further comprising a chemical reagent mounted on said electrode working surface for detecting an analyte contained in a fluid sample through reacting with said analyte so as to generate said measured signal which is then outputted through said signal output terminal.

6. The sensor strip according to claim 4 wherein the conductive raw material and the metal film are fully received in the through hole.

7. A disposable electrochemical sensor strip, comprising:

at least a conductive raw material;

a metal film coated on said conductive raw material for forming an electrode which comprises an electrode working surface for processing an electrode action, and a signal output terminal for outputting a measured signal; and

an insulation piece having at least a through hole into which the conductive raw material and the metal film are mounted,

wherein said electrode and said insulation piece are simultaneously formed.

8. The sensor strip according to claim 7, wherein said electrode and said insulation piece are simultaneously formed through a molding device selected from the group consisting of an injection-molding device, a punch press device and a computerized drilling machine.

9. The sensor strip according to claim 7, wherein the conductive raw material and the metal film are fully received in the through hole.

10. A disposable electrochemical sensor strip, comprising:

at least a conductive raw material;

a metal film coated on said conductive raw material for forming an electrode which comprises an electrode working surface for processing an electrode action, and a signal output terminal for outputting a measured signal; and

an insulation piece having at least a through hole into which the conductive raw material and the metal film are mounted,

wherein said sensor strip comprises said insulation piece being the only one insulation piece therein.

11. The sensor strip according to claim 10 further comprising a chemical reagent mounted on said electrode working surface for detecting an analyte contained in a fluid sample through reacting with said analyte so as to generate said measured signal which is then outputted through said signal output terminal.

12. The sensor strip according to claim 10 wherein the conductive raw material and the metal film are fully received in the through hole.

13. A disposable electrochemical sensor strip, comprising:

at least a conductive raw material;

a metal film fully encapsulating said conductive raw material to form an electrode which comprises an electrode working surface for processing an electrode action, and an electrode connecting surface;

an insulation sheet having at least a through hole into which the conductive raw material and the metal film are mounted; and

at least a printed conductive film on said insulation sheet and having a connecting terminal for being electrically connected to said electrode connecting surface, and a signal output terminal for outputting a measuring signal produced by said electrode action,

wherein said electrode forms an electrode area in said through hole whose area is an area of said working surface for processing said electrode action and transmitting said measured signal.