BIOSENSOR AND ELECTRODE STRUCTURE THEREOF

• US 20110074396A1
• Filed: 10/23/2009
• Published: 03/31/2011
• Est. Priority Date: 09/25/2009
• Status: Abandoned Application

• Current Assignee: National Chiao Tung University (Government of The Republic of China)
• Original Assignee: National Chiao Tung University (Government of The Republic of China)
• Inventors: Sun, Arch, Lin, Chin-Teng, Chen, Yu-Han, Liao, Lun-De, Chung, Ming-Hsiu, Chen, Shia-Chung, Chao, Paul C.-P.
• Application Number:
  US12/604,984
• Publication Number:
  US 20110074396A1
• Time in Patent Office: Days
• US Class Current: 324/121.R
• CPC Class Codes: A61B 2562/0215 Silver or silver chloride containing
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 2562/12 Manufacturing methods specially adapted for producing sensors for in-vivo measurements
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/296 for electromyography [EMG]
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance

Abstract

An electrode structure of a biosensor includes a flexible conductive substrate and a plurality of conductive probes protruding from the conductive substrate and configured for contacting a subject and receiving a physiological electric wave signal therefrom. The present invention improves disadvantages of wet electrodes and microstructure electrodes and provides more stable signals that may less decay with time so as to achieve real-time and long-acting measurement for physiological electric wave signal. A biosensor using the electrode structure is also disclosed.

Claims

1. An electrode structure of a biosensor, comprising:

a flexible conductive substrate; and

a plurality of conductive probes protruding from the conductive substrate and configured for contacting a subject and receiving a physiological electric wave signal therefrom.

2. The electrode structure as claimed in claim 1 further comprising:

a cushioning material covering the conductive substrate and exposing a portion of the conductive substrate.

3. The electrode structure as claimed in claim 2, wherein the cushioning material covers a portion of the conductive probes.

4. The electrode structure as claimed in claim 1, wherein the conductive substrate is made of metal.

5. The electrode structure as claimed in claim 1, further comprising:

a conductive coating material overlaying a surface of each of the conductive probes.

6. The electrode structure as claimed in claim 1, wherein the conductive probes are arranged in array.

7. The electrode structure as claimed in claim 1, wherein the conductive probes are pillar-shaped or needle-shaped.

8. The electrode structure as claimed in claim 1, wherein the conductive probes are made of metal.

9. The electrode structure as claimed in claim 1, wherein each of the conductive probes has a base portion connected to the conductive substrate and a top portion to be contacted with the subject, and the base portion is wider than the top portion.

10. The electrode structure as claimed in claim 9, wherein each of the conductive probes further includes a trench arranged between the base portion and the top portion.

11. A biosensor, comprising:

at least one electrode structure comprising

a flexible conductive substrate; and

a plurality of conductive probes protruding from the conductive substrate and configured for contacting a subject and receiving a physiological electric wave signal therefrom; and

an oscilloscope electrically connected to the electrode structure and configured for displaying the physiological electric wave signal.

12. The biosensor as claimed in claim 11, wherein the electrode structure further comprises a cushioning material covering the conductive substrate and exposing a portion of the conductive substrate.

13. The biosensor as claimed in claim 12, wherein the cushioning material covers a portion of the conductive probes.

14. The biosensor as claimed in claim 11 further comprising:

a casing covering the electrode structure and exposing a portion of the conductive probes.

15. The biosensor as claimed in claim 14, wherein the casing is detachable.

16. The biosensor as claimed in claim 11, wherein the conductive substrate is made of metal.

17. The biosensor as claimed in claim 11, wherein each of the electrode structure comprises a conductive coating material overlaying a surface of each of the conductive probes.

18. The biosensor as claimed in claim 11, wherein the conductive probes are arranged in array.

19. The biosensor as claimed in claim 11, wherein the conductive probes are pillar-shaped or needle-shaped.

20. The biosensor as claimed in claim 11, wherein the conductive probes are made of metal.

21. The biosensor as claimed in claim 11, wherein each of the conductive probes has a base portion connected to the conductive substrate and a top portion to be contacted with the subject, and the base portion is wider than the top portion.

22. The biosensor as claimed in claim 21, wherein each of the conductive probes further includes a trench arranged between the base portion and the top portion.

23. The biosensor as claimed in claim 11 further comprising:

an amplifying circuit serially connected between the electrode structure and the oscilloscope.

24. The biosensor as claimed in claim 11 further comprising:

a filtering device serially connected between the electrode structure and the oscilloscope.