Electrode for living body and device for detecting living signal
A biosignal measurement device includes an electrode and a signal processing member. The electrode includes an insulation sheet having a hole, a device contact portion provided on the top surface of the insulation sheet and a body contact portion provided on the bottom surface of the insulation sheet, the device contact portion and the body contact portion electrically connected to each other via the hole. The signal processing member includes an externally exposed terminal to make surface contact with the device contact portion, an analog signal processing unit, an A/D signal converter and a digital signal processing unit. Also, the device contact portion and the body contact portion are formed of a material which is both conductive and adhesive. Accordingly, the signal processing member may be directly attached. Noise may be reduced. Also, a biosignal may be accurately measured.
1. A biosignal measurement device for making contact with a living body and measuring a biosignal, comprising:
a signal processing member comprising an externally exposed terminal, an analog signal processing unit processing an analog signal transmitted from the terminal, an analog-to-digital (A/D) signal converter converting the analog signal into a digital signal, and a digital signal processing unit processing the converted digital signal; and
an electrode member comprising an insulation sheet having a hole, a device contact portion contacted with a top surface of the insulation sheet to make surface contact with the terminal of the signal processing member and a body contact portion contacted with a bottom surface of the insulation sheet and electrically connected with the device contact portion, the device contact portion and the body contact portion formed of a conductive material,
wherein the hole integrally connects the device contact portion and the body contact portion, and the device contact portion and the terminal make surface contact by flat contact surfaces formed on the device contact portion and the terminal and are electrically connected to each other via a wide contact area.
2. The device of claim 1 , wherein the signal processing member further comprises a wired/wireless transmitter externally transmitting a signal processed by the digital signal processing unit.
3. The device of claim 1 , wherein the device contact portion and the body contact portion are formed of a material which is both conductive and adhesive, and the device contact portion attaches to the signal processing member via adhesive properties and maintains an electrical connection state with the terminal of the signal processing member.
4. The device of claim 3 , wherein the device contact portion and the body contact portion are provided by placing a material, which is fluidic conductive and adhesive, around the hole of the insulation sheet and molding the fluidic conductive and adhesive material into a solid material which is both conductive and adhesive.
5. The device of claim 1 , wherein an adhesive material is applied around the body contact portion on the bottom of the insulation sheet.