Patent ID: 8538511

Claim:
An improved apparatus for collecting a physiological signal, comprising a main body, being in a shape of circular arc and including two devices for taking out the physiological signal from a finger at each side of the main body, each device for taking out the physiological signal from a finger including: a finger contacting element, being in a shape of circular arc and including thereon an electrode unit for taking out an electronic signal of the physiological signal from the finger, wherein an internal portion of the finger contacting element is in a sunken shape; a receiving element, being in a shape of circular arc and provided on an upper side of the finger contacting element; and an elastic element, being connected to the receiving element, wherein each elastic element is adapted to open an angle at each receiving element according to elastic force of each elastic element and insertion force of each finger, allowing said each finger to easily insert into a space and engage with the finger contacting element and the receiving element.