Electrically-bent endoscope

Details Electrically-bent endoscope Electrically-bent endoscope

2005-08-23

2005-08-23

Flanagan, Beverly M. (Department: 3739)

Surgery

Endoscope

Having flexible tube structure

C600S146000, C600S104000, C600S117000

Reexamination Certificate

active

06932761

ABSTRACT:
An electrically-bent endoscope includes a bend driving portion for bending a bending portion. The bend driving portion has a motor for generating driving force, a gear train for transmitting driving force generated in the motor, a sprocket for converting driving force of the motor to a back and forth movement of bending operation wires for bending the bending portion at the head portion of an inserting portion, and a clutch mechanism for connecting and disconnecting driving force transmitted from the gear train to the sprocket. The clutch mechanism includes a transmitting member for connecting and disconnecting the gear train and sprocket, a thrust mechanism for moving the transmitting member in the axial direction of the sprocket and a clutch operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting the gear train and the sprocket.

REFERENCES:
patent: 4559928 (1985-12-01), Takayama
patent: 4982725 (1991-01-01), Hibino et al.
patent: 5159446 (1992-10-01), Hibino et al.
patent: 5658238 (1997-08-01), Suzuki et al.
patent: 6554766 (2003-04-01), Maeda et al.
patent: 2002/0087047 (2002-07-01), Ramijan et al.
patent: 4-256724 (1992-09-01), None

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