Patent ID: 8333702

Claim:
An ultrasonic probe comprising: a probe unit having a transducer part and a heat-receiving part, the transducer part being configured to transmit and receive an ultrasonic wave, the heat-receiving part being configured to absorb heat generated from the transducer part; a refrigeration unit configured to refrigerate the heat-receiving part; and a cable unit with a circular section having signal lines, a refrigerant supply tube, and a refrigerant ejection tube, the signal lines being configured to communicate signals between the transducer part and an ultrasonic diagnostic apparatus, the refrigerant supply tube being configured to supply a refrigerant from the refrigeration unit to the heat-receiving part, the refrigerant ejection tube being configured to send the refrigerant for ejecting heat of the heat-receiving part to the refrigeration unit; wherein a set of the refrigerant supply tube and the refrigerant ejection tube is arranged substantially at a center core of a cross-section of the cable unit, the signal lines being arranged to fill completely a 360° angular space circumferentially surrounding the set of the refrigerant supply tube and the refrigerant ejection tube, and the refrigerant supply tube and the refrigerant ejection tube are configured to be a common multi-channel tube with a circular section which has at least two independent channels in a length direction, at least one channel of the independent channels being used for the refrigerant supply tube while the other channel or the other channels of the independent channels are used for the refrigerant ejection tube.