An ultrasonic probe for microscopic operations in accordance with the present invention consists mainly of an ultrasonic probe body, an elongated tubular member, and a bent handle member. A plurality of linked lists are used to remove redundancy, increase search speed, and allow dynamic categories. To this end, the board has a width of at least 2. A plurality of parallel grooves are formed lengthwise andor widthwise along the outer surface of the top panel andor the outer surfaces of the side panels of the outer enclosure case body such that the cross-section of the top panel andor the side panels is a heat-dissipating configuration of rectangular protrusions and depressions.