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Improved bone resector
专利权人:
Orthosonics Limited
发明人:
Young, Michael John Radley
申请号:
AU2010240755
公开号:
AU2010240755B2
申请日:
2010.04.19
申请国别(地区):
AU
年份:
2015
代理人:
摘要:
A bone resector tool (100) comprises an ultrasonic transducer (8), typically generating longitudinal mode vibrations at around 40 kHz, and having an elongate blade portion (2) mounted thereto. The transducer (8) and blade portion (2) are mounted to a rotatably- drivable converter element (3). Rotation of the converter element (3) produces reciprocal longitudinal motion of the transducer (8) and blade portion (2). A counterweight (5B) is also mounted to the converter element (3), moving exactly out of phase with the transducer (8) and blade portion (2), such that a centre of mass of the whole system is stationary, reducing vibration of the tool (100) in a user's hand. The peak velocity due to the ultrasonic vibrations of a distal tip (6A) of the blade portion (2) is up to seven times greater than its peak velocity due to the reciprocal longitudinal motion. This permits rapid, low-effort cutting of bone with easy removal of cut debris and minimal consequent necrosis.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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