专利名称：Ultrasound apparatus发明人：Chon, James Y.,Gordon, Raphael申请号：EP07115341.5申请日：20070830公开号：EP1917936B1公开日：20090325
摘要：A magnetorestrictive ultrasonic surgical handpiece (9) is provided, having amagnetorestrictive stack (110,220); an acoustic impedance transformer, or horn (120,220);an electric coil (150,250) surrounding the stack; and means (401,402) to selectively supplya drive signal to the stack and the coil. The handpiece is capable of providing bothlongitudinal and torsional or twisting motion at the handpiece tip (10), depending on thedrive signal supplied.
申请人：ALCON INC
地址：CH
国籍：CH
代理机构：Hanna, Peter William Derek
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