Method for transmitting torque and variably flexing a corrugated insertion device
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United States of America Patent
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Oct 23, 2012
Grant Date -
Jun 2, 2011
app pub date -
Jan 14, 2011
filing date -
Aug 10, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A method for transmitting torque and variably flexing an insertion device for receiving an instrument includes the steps of providing a hollow body having a proximal end with an entrance for receiving an instrument, a distal end with a tip for protrusion of the instrument, an outer jacket and an inner sleeve, maintaining the hollow body in relatively flexible and relatively stiff conditions with wires disposed at least partly between the outer jacket and the inner sleeve and being free of at least one of the outer jacket and the inner sleeve, transmitting torque along the hollow body with a corrugated tube disposed between the outer jacket and the inner sleeve, and applying suction to create a vacuum between the outer jacket and the inner sleeve for placing the hollow body in the relatively stiff condition and relieving the vacuum for placing the hollow body in the relatively stiff condition, with a transitioning device for frictionally locking the wires and the corrugated tube in place.
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