Medical probe buffer for buffering a measured physiological signal

A medical probe comprising:

• a medical probe buffer according to for buffering a measured physiological signal of a human body, comprising:
• at least one receive port couplable to a receive wire, which is arranged for conducting a signal based on a physiological signal of the human body;
• each receive port having an associated receive buffer arranged for buffering the signal from the respective receive port, wherein each receive buffer comprises an input, and an output;
• each receive port having an associated receive resistor conductively arranged between the respective receive port and the input of the respective receive buffer;
• at least one transmit port couplable to a transmit wire, which is arranged for conducting a signal to the human body;
• each transmit port having an associated transmit buffer arranged for buffering the signal provided to the respective transmit port, wherein each transmit buffer comprises an input, and an output;
• and
• each transmit port having a number of associated transmit resistors conductively arranged in series between the output of the transmit buffer and the transmit port;
• wherein a resistor group is formed by the receive resistor and the number of transmit resistors;
• and
• wherein the resistance values of the resistors in the resistor group are preselected such that a current through the human body does not exceed a safety threshold current when an electrical short-circuit fault occurs in a resistor in the resistor group;
• and
• at least one probe cable comprising:
• a receive wire couplable to the at least one receive port;
• and
• a transmit wire couplable to the at least one transmit port.

A medical device for measuring a physiological signal of a human body, comprising:

• a medical probe arranged for measuring the physiological signal;
• a medical probe buffer arranged for receiving the measured physiological signal from the probe, the probe comprising:
• at least one receive port couplable to a receive wire, which is arranged for conducting a signal based on a physiological signal of the human body;
• each receive port having an associated receive buffer arranged for buffering the signal from the respective receive port, wherein each receive buffer comprises an input, and an output;
• each receive port having an associated receive resistor conductively arranged between the respective receive port and the input of the respective receive buffer;
• at least one transmit port couplable to a transmit wire, which is arranged for conducting a signal to the human body;
• each transmit port having an associated transmit buffer arranged for buffering the signal provided to the respective transmit port, wherein each transmit buffer comprises an input, and an output;
• and
• each transmit port having a number of associated transmit resistors conductively arranged in series between the output of the transmit buffer and the transmit port;
• wherein a resistor group is formed by the receive resistor and the number of transmit resistors;
• and
• wherein the resistance values of the resistors in the resistor group are preselected such that a current through the human body does not exceed a safety threshold current when an electrical short-circuit fault occurs in a resistor in the resistor group;
• and
• a processor for processing the buffered physiological signal from the medical probe buffer.