Patent ID: 7668580

Claim:
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.