Ultrasound device

An ultrasound device comprising:

• an ultrasound generator configured to generate ultrasound vibrations;
• and
• an ultrasound probe that is acoustically connected, on a proximal end side, to the ultrasound generator, and is configured to transmit the ultrasound vibrations, the ultrasound probe including, on a distal end side, a distal end treatment portion including:
• a base portion disposed on a proximal end side of the distal end treatment portion, the distal end treatment portion being configured to form a bone hole having a cross-sectional shape identical to that of the base portion, and
• a distal end portion disposed on a distal side of the base portion, the distal end portion including a plurality of projections arranged in a row, each projection being formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection, the at least one excision surface being configured to finely crush the bone, wherein:
• adjacent projections are adjoined to one another by a valley formed therebetween, and the valley includes a valley peak at a distal-most meeting point of the adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined;
• wherein the plurality of projections protrude in a direction of a longitudinal axis of the distal end treatment portion.