Dry electrode device and method of assembly

• US 8,170,637 B2
• Filed: 05/06/2008
• Issued: 05/01/2012
• 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:
  US12/116,020
• Publication Number:
  US 20090281408A1
• Time in Patent Office: 1,456 Days
• Field of Search: 600382-386, 600/394, 600/372, 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;

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

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

2. The dry electrode set of claim 1, wherein the conductive electrode is replaceable.

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

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