| 摘要 |
An ultrasound converter ( 5 ) is furnished in the gripping part of a hand piece. The hand piece is connected to an ultrasound generator ( 7 ) through a connection line ( 6 ). The sonotrode ( 1,1', 1 '') is introduced through a corresponding opening in the front end of the hand piece and is screwed together with the ultrasound converter ( 5 ). The sonotrode ( 1,1', 1 '') is formed such that the distal end transitions into a larger diameter, the drill head ( 2,2',2 ''). This drill head is furnished with an axial bore hole such that the drill crown ( 3,3', 3 '') is formed in the kind of a tube drill or a hole saw. The shape of the cutting teeth furnished at the front side of the crown ( 3,3', 3 '') of the drill is different depending on the case of application. A stop sleeve ( 4 ) is slid over the sonotrode, wherein the stop sleeve ( 4 ) is attached in the grip part of the ultrasound converter ( 5 ) changeable in length with a fine thread. |
