In order to facilitate puncturing operations, a processor (1a) for a multipurpose terminal device (1): acquires position information indicating if puncturing of a living body (3) is to be performed from either a first side or a second side opposite the first side relative to an ultrasonic probe device (2), and angle information indicating the puncture angle, said position information and angle information being input using a touch panel on a display device (1c); transmits the position information and angle information to the ultrasonic probe device (2) using a wireless communication circuit (1d); acquires, using the wireless communication circuit (1d), image information generated by the ultrasonic probe device (2) on the basis of reflected waves from inside of the living body (3), the reflected waves being associated with ultrasonic waves transmitted from the ultrasonic probe device (2) at an angle based on the position information and angle information, and the image information being transmitted from the ultrasonic probe device (2); and combines and displays, using the display device (1c), an ultrasonic image (6) of the living body (3) or a puncture needle (4) on the basis of the image information, and a puncture guide (7) indicating a puncture path based on the position information and the angle information.Afin de faciliter des opérations de ponction, un processeur (1a) d'un équipement terminal polyvalent (1) : acquiert des informations de position indiquant si la ponction d'un corps vivant (3) doit être réalisée soit d'un premier côté, soit d'un second côté opposé au premier côté par rapport à un dispositif de sonde ultrasonore (2), et des informations d'angle indiquant l'angle de ponction, lesdites informations de position et lesdites informations d'angle étant entrées à l'aide d'un panneau tactile sur un dispositif d'affichage (1c); transmet les informations de position et les informations d'angle au dispositif de sonde ultrasonore (2) à l'aide d'un circuit d