Torque-transmitting, variably-flexible, corrugated insertion...

Details Torque-transmitting, variably-flexible, corrugated insertion... Torque-transmitting, variably-flexible, corrugated insertion...

2011-08-02

2011-08-02

Stigell, Theodore J (Department: 3767)

Surgery

Endoscope

Having flexible tube structure

C604S095040, C600S144000

Reexamination Certificate

active

07988621

ABSTRACT:
A torque-transmitting, variably-flexible, corrugated 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 vacuum-activated device transitions the hollow body between a relatively flexible condition and a relatively stiff condition. A corrugated tube transmits torque from the proximal end toward the distal end. A method for transmitting torque and variably flexing an insertion device for receiving an instrument includes providing a hollow body, transmitting torque along the hollow body with a corrugated tube, applying suction to create a vacuum in the hollow body for placing the hollow body in a relatively stiff condition, and relieving the vacuum for placing the hollow body in a relatively flexible condition.

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