Dry electrode device and method of assembly

• US 8,396,529 B2
• Filed: 03/29/2012
• Issued: 03/12/2013
• Est. Priority Date: 05/06/2008
• Status: Expired due to Fees

• Current Assignee: Neurosky Incorporated
• Original Assignee: Neurosky Incorporated
• Inventors: Lee, KooHyoung, Choi, ByeongHyeop
• Primary Examiner(s): Cohen, Lee S
• Application Number:
  US13/433,555
• Publication Number:
  US 20120245450A1
• Time in Patent Office: 348 Days
• Field of Search: 600/372, 600384-386, 600/394, 607/139, 607/140, 607/149
• US Class Current: 600/372
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/251 Means for maintaining electrode contact with the body
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/302 for capacitive or ionised electrodes, e.g. metal-oxide-semiconductor field-effect transistors [MOSFET]
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

An electrode set is disclosed that has two separable parts including an assembled base with printed circuit board basement, biasing member and top cover and an electrode. The basement and top cover may be made by metal or conductive material.

Claims

1. A dry electrode set, comprising:

a base portion, wherein the base portion comprises a base, a conductive biasing mechanism, an opening, and a connection, wherein the base portion further comprises a basement that includes teeth and a top cover, and wherein the basement with its teeth passes through the base, captures the conductive biasing mechanism between the basement and the top cover and secures itself to the top cover using the teeth;

a conductive electrode having a cap portion and a post portion connected to the cap portion, the post portion having a retaining ridge, wherein the conductive electrode is replaceable;

the conductive electrode is inserted into the opening of the base, wherein the conductive electrode is releasably retained in the base by the retaining ridge, wherein the conductive electrode is pivotable and rotatable in the opening of the base, and wherein the conductive electrode is biased away from the base and allows for the conductive electrode to be pressed fitted against a user'"'"'s skin;

wherein a signal detected by the conductive electrode passes through the conductive electrode and the conductive biasing mechanism to the connection; and

wherein the base is located between the conductive electrode and the basement.

2. The dry electrode set of claim 1, wherein the conductive biasing mechanism further comprises a spring.

3. The dry electrode set of claim 1, wherein the base further comprises a set of circuits and the top cover connected to each other.

4. The dry electrode set of claim 1, wherein the conductive biasing mechanism further comprises a spring, and wherein the base further comprises a set of circuits and the top cover connected to each other.

5. The dry electrode set of claim 1, wherein the conductive electrode comprises a silver-silver chloride surface electrode.

6. The dry electrode set of claim 1, wherein a surface of the conductive electrode includes gold or silver.

7. The dry electrode set of claim 1, wherein the conductive electrode comprises a button type electrode.

8. A dry electrode set, comprising:

a base portion, wherein the base portion comprises a base, a conductive biasing mechanism, an opening, and a connection, wherein the base portion further comprises a basement that includes teeth and a top cover, wherein the basement with its teeth passes through the base, captures the conductive biasing mechanism between the basement and the top cover and secures itself to the top cover using the teeth, and wherein the conductive biasing mechanism further comprises a spring;

a conductive electrode having a cap portion and a post portion connected to the cap portion, the post portion having a retaining ridge;

the conductive electrode is inserted into the opening of the base, wherein the conductive electrode is releasably retained in the base by the retaining ridge, wherein the conductive electrode is pivotable and rotatable in the opening of the base, wherein the conductive electrode is biased away from the base and allows for the conductive electrode to be pressed fitted against a user'"'"'s skin;

wherein a signal detected by the conductive electrode passes through the conductive electrode and the conductive biasing mechanism to the connection; and

wherein the top cover is located between the conductive electrode and the basement.

9. The dry electrode set of claim 8, wherein the conductive electrode is replaceable.

10. The dry electrode set of claim 8, wherein the base further comprises a set of circuits and the top cover connected to each other.

11. The dry electrode set of claim 8, wherein the conductive electrode is replaceable, and wherein the base further comprises a set of circuits and the top cover connected to each other.

12. The dry electrode set of claim 8, wherein the conductive electrode comprises a silver-silver chloride surface electrode.

13. The dry electrode set of claim 8, wherein a surface of the conductive electrode includes gold or silver.

14. The dry electrode set of claim 8, wherein the conductive electrode comprises a button type electrode.

15. A dry electrode set, comprising:

a base portion, wherein the base portion comprises a base, a conductive biasing mechanism, an opening, and a connection, wherein the base portion further comprises a basement that includes teeth and a top cover, wherein the basement with its teeth passes through the base, captures the conductive biasing mechanism between the basement and the top cover and secures itself to the top cover using the teeth, and wherein the base further comprises a set of circuits and the top cover connected to each other;

a conductive electrode having a cap portion and a post portion connected to the cap portion, the post portion having a retaining ridge, wherein the conductive electrode is replaceable;

the conductive electrode is inserted into the opening of the base, wherein the conductive electrode is releasably retained in the base by the retaining ridge, wherein the conductive electrode is pivotable and rotatable in the opening of the base, wherein the conductive electrode is biased away from the base and allows for the conductive electrode to be pressed fitted against a user'"'"'s skin;

wherein a signal detected by the conductive electrode passes through the conductive electrode and the conductive biasing mechanism to the connection; and

wherein the top cover is located between the conductive electrode and the base.

16. The dry electrode set of claim 15, wherein the conductive biasing mechanism further comprises a spring.

17. The dry electrode set of claim 15, wherein the conductive electrode comprises a silver-silver chloride surface electrode.

18. The dry electrode set of claim 15, wherein a surface of the conductive electrode includes gold or silver.

19. The dry electrode set of claim 15, wherein the conductive electrode comprises a button type electrode.