Endoscope provided with function of being locked to flexibility

Details Endoscope provided with function of being locked to flexibility Endoscope provided with function of being locked to flexibility

1996-09-12

1998-09-22

Flanagan, Beverly M.

Surgery

Endoscope

Having flexible tube structure

600139, 600141, 600146, 600148, A61B 100

Patent

active

058107150

ABSTRACT:
A densely wound coil and a wire which passes through the coil are inserted into a flexible part which has a flexibility. The coil which is fixed in the vicinity of a distal end of the wire has a proximal end thereof which is regulated in movement toward a rearward side by a stopper. The wire which extends rearward from the proximal end of the coil has a proximal end thereof which is drawn or pulled toward the rearward side by angular movement of an adjustment knob which is provided in the vicinity of a forward end of an operation part. By this traction, a compressive force is relatively applied to the coil to make flexibility of the coil changeable. By an O-ring which is urged against the adjustment knob, even if a hand is removed after the adjustment knob has been operated, the adjustment knob can be locked to the state by a frictional force.

REFERENCES:
patent: 4329980 (1982-05-01), Terada
patent: 4890602 (1990-01-01), Hake
patent: 4977887 (1990-12-01), Gouda
patent: 5179935 (1993-01-01), Miyagi
patent: 5482029 (1996-01-01), Sekiguchi et al.

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