发明名称 |
Ultrasonic surgical instruments |
摘要 |
A surgical instrument. The surgical instrument may comprise a transducer and an end effector. The transducer may be configured to provide vibrations along a longitudinal axis at a predetermined frequency and may comprise a piezoelectric stack positioned along the longitudinal axis. The transducer also may comprise a first metallic end mass positioned along the longitudinal axis adjacent a first end of the piezoelectric stack and a second metallic end mass positioned along the longitudinal axis adjacent a second end of the piezoelectric stack. The length of the transducer may be greater than or equal to of one wavelength and less than ½ of one wavelength. The end effector may be coupled to the transducer and may extend along the longitudinal axis. The length of the transducer and the end effector may be a multiple of ½ of one wavelength.
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申请公布号 |
US2009036912(A1) |
申请公布日期 |
2009.02.05 |
申请号 |
US20070888171 |
申请日期 |
2007.07.31 |
申请人 |
WIENER EITAN T;STULEN FOSTER B;KRAIMER WILLIAM;STOKES MICHAEL J;ISAACS KAREN K |
发明人 |
WIENER EITAN T.;STULEN FOSTER B.;KRAIMER WILLIAM;STOKES MICHAEL J.;ISAACS KAREN K. |
分类号 |
A61B17/32 |
主分类号 |
A61B17/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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