Rick Harrington,Charles W. Krapf,Michael Rontal,Ryan Klock
申请号：
US14641791
公开号：
US09486235B2
申请日:
2015.03.09
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A surgical instrument for treating body tissues through narrow body passages employs an elongated cantilevered beam having a proximal end supported in a rigid block and a narrower distal end extendable through the narrow passages. One or more piezoelectric actuators are fixed to the beam surface and energized from an AC source through electrodes interspersed with the piezoelectric actuators to produce oscillatory motion of the beam distal end in multiple modes of movement with sensing electronics to monitor and control the distal mechanical movement.
