Physiological signal monitoring device with an electrostatic-discharge protective mechanism

A physiological signal monitoring device adapted for monitoring a physiological parameter of at least one analyte of a host, comprising:

• a base adapted to be mounted to a skin surface of the host, and provided with a biosensor, the biosensor having a sensing section and a signal output section, the sensing section of the biosensor being adapted to be inserted underneath the skin surface of the host for measuring at least one physiological signal corresponding to the physiological parameter of the host, and outputting the physiological signal via the signal output section;
• and
• a transmitter removably coupled to the base, and including
• a casing that defines an inner space therein for receiving a circuit board and that has a connecting surface facing the base, the connecting surface being provided with a connecting port, the connecting port having a socket that is communicated with the inner space and that is for the signal output section of the biosensor to be removably inserted thereinto, to permit the biosensor to be coupled to the circuit board and to output the physiological signal to the circuit board for processing the physiological signal, and
• an electrostatic-discharge protective unit that is at least disposed at the periphery of the socket of the connecting port for bearing and dispelling static electricity when electrostatic discharge occurs;
• wherein the electrostatic-discharge protective unit includes an electrostatic-discharge protective component that covers an outer surface of the connecting port,
• wherein the electrostatic-discharge protective component is disposed on the connecting port and is at least adjacent to a periphery of the socket, the electrostatic-discharge protective unit further including at least one first conductive medium that is in contact with the electrostatic-discharge protective component, the electrostatic-discharge protective component being electrically coupled to a potential balance unit via the first conductive medium,
• wherein the first conductive medium of the electrostatic-discharge protective unit of the transmitter is configured as a coil spring and abuts against the electrostatic-discharge protective component and the potential balance unit at two radial ends or two axial ends thereof,
• wherein the inner space of the transmitter is provided with a plurality of second conductive mediums that are mounted in the connecting port, each of the second conductive mediums being in contact with the circuit board at a side thereof, and
• wherein, when the signal output section of the biosensor is inserted into the connecting port of the transmitter via the socket, each of the second conductive mediums is in contact with the signal output section of the biosensor at another side thereof, so that the biosensor is electrically coupled to the circuit board via the second conductive mediums.