发明授权
- 专利标题: Ultrasonic cutting blade with cooling
- 专利标题(中): 超声波切割刀片带冷却
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申请号: US09440349申请日: 1999-11-15
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公开(公告)号: US06379371B1公开(公告)日: 2002-04-30
- 发明人: Theodore A. D. Novak , Werner Sladek-Maharg , Dan Voic
- 申请人: Theodore A. D. Novak , Werner Sladek-Maharg , Dan Voic
- 主分类号: A61B1732
- IPC分类号: A61B1732
摘要:
An ultrasonic surgical blade has a blade body with a smooth continuous cutting edge and a shank connected at one end to the blade body and operatively connectable at an opposite end to a source of ultrasonic vibrations. The shank is provided with an axially extending bore for the conveyance of cooling fluid to the cutting edge, while the blade body is provided with an axially extending through-slot communicating at one end with the bore. The blade body is preferably provided at an end opposite the shank with a recess communicating, with the bore for distributing fluid from the slot towards the cutting edge. The recess preferably has a configuration which parallels at least a portion of the cutting edge. Where the cutting edge is circular and the blade body has a planar surface between the fluid distribution guide surface and the cutting edge, for instance, the recess has a fluid distribution surface inclined with respect to the planar blade surface and extending along a circular arc.