Electrically-bent endoscope

An electrically-bent endoscope, comprising:

• a motor for generating driving force for bending a bending portion at the head portion of an inserting portion;
• 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 a bending operation wires;
• and
• a clutch mechanism having a transmitting member for connecting and disconnecting the final level of the gear train and sprocket, which are provided coaxially, a thrust mechanism for moving the transmitting member in the axial direction of the sprocket and a clutch operation knob, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting the final level of the gear train and the sprocket.

An electrically-bent endoscope, comprising:

• a motor for generating driving force;
• a driving force transmitting portion for transmitting driving force generated in the motor;
• a converting portion for converting driving force of the motor to a back and force movement of a bending operation member for bending a bending portion at the head of an inserting portion;
• a clutch portion including a transmitting member for connecting and disconnecting the driving force transmitting portion and the converting portion, a thrust portion for moving the transmitting member in the axis direction of the converting portion, and an operating portion, connected to the thrust portion, for inputting instructions for connecting and disconnecting the driving force transmitting portion and the converting portion, the clutch portion connecting and disconnecting driving force transmitted from the driving force transmitting portion to the converting portion.

An electrically-bent endoscope, comprising:

• a motor;
• driving force transmitting means for transmitting driving force generated in the motor;
• converting means for converting driving force of the motor to a back and force movement of a bending operation member for bending a bending portion at the head of an inserting portion;
• clutch means including a transmitting member for connecting and disconnecting the driving force transmitting means and the converting means, means for moving the transmitting member in the axis direction of the converting means, and operating means, connected to the means, for inputting instructions for connecting and disconnecting the driving force transmitting means and the converting means, the clutch means connecting and disconnecting driving force transmitted from the driving force transmitting means to the converting means.