Bend operating apparatus for endoscope

An operating device, endoscope technology, applied in the direction of endoscope, application, medical science, etc., can solve problems such as operation failure, achieve the effect of preventing wire damage and enhancing bending operability
CN1575744AInactive Publication Date: 2005-02-09FUJI PHOTO OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
FUJI PHOTO OPTICAL CO LTD
Publication Date
2005-02-09
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The curving operation device of an endoscope is provided with the pulley 26 to be turned by an angle knob 24 and a groove 46 in a helical shape is formed on the outer peripheral surface of the pulley 26. The proximal end parts of a pair of traction wires 28a and 28b are wound from the end parts 46a and 46b of the groove 46 to the groove 46. The distal parts of the traction wires 28a and 28b are extended from the pulley 26 and connected via connecting members 32a and 32b to angle wires 34a and 34b. The traction wires 28a and 28b are constituted by twisting the plurality of wires 56 in the same direction as the winding direction of the groove 46.
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Description

technical field

[0001] The present invention relates to a bending operation device for an endoscope, and more particularly, to a bending operation device for bending a bending portion of an insertion member of an endoscope to a desired direction following a rotation operation of an angle knob. Background technique

[0002] The medical endoscope is provided with an insertion part inserted into a body cavity, and a curved part is provided near the tip of the insertion part. The curved portion is curved up and down or left and right by a turning operation of an angle knob provided at the hand operation part. That is, the endoscope is provided with a bending operation device for bending the bending portion as the angle knob is rotated.

[0003] The bending operating device is composed of a pulley rotatably operated by an angle knob and a pair of pull wires whose bottom end portions are wound along grooves of the pulley. The top end of the guy wire is connected to the angle wir...

Claims

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