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Variably flexible insertion device and method for variably flexing an insertion device
专利权人:
Kevin W. Smith
发明人:
Kevin W. Smith,Derek Dee Deville,Korey Kline,Matthew A. Palmer
申请号:
US13311145
公开号:
US08696639B2
申请日:
2011.12.05
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A variably flexible insertion device includes a hollow body having a proximal end with an entrance for receiving an instrument and a distal end with a tip for protrusion of the instrument. A device transitions the hollow body between a relatively flexible condition and a relatively stiff condition. Tendons within the hollow body maintain the hollow body in the relatively flexible and relatively stiff conditions. A method for variably flexing an insertion device for receiving an instrument, includes providing a hollow body having inner and outer sleeves defining a space therebetween in which tendons are disposed. Suction is applied to create a vacuum in the space for frictionally locking the tendons in place between the sleeves in a relatively stiff condition of the hollow body. The vacuum is relieved to release the tendons in a relatively flexible condition of the hollow body.
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中国工程科技知识中心
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