This invention relates to an apparatus for exploding explosives intermittently for generating shock waves one after the other, usable for disintegrating a calculus or calculi in a human body. The apparatus comprises an explosive capsule carrying member which is movable and carries plural explosive capsules which are separable therefrom, a pair of explosive capsule holding rods for holding therebetween any selected one of the plural explosive capsules, a driving means for driving at least one of the two holding rods so that the selected capsule may be brought to be held between the two holding rods and be separated from the carrying member and further be moved to a predetermined position, and a striking means for striking at least one of the holding rods in its longitudinal direction so that an explosive in the capsule held between the two holding rods may be given an impact for being exploded. |