Bending control apparatus for endoscope

Details Bending control apparatus for endoscope Bending control apparatus for endoscope

1989-02-17

1990-07-24

Grieb, William H.

Surgery

Truss

Perineal

A61B 100

Patent

active

049428667

ABSTRACT:
A control wire which is secured at one end thereof to a bendable portion of the insert part of an endoscope is wound on a pulley which is rotatably provided in a control part, and a manual control device is provided outside the control part so as to be rotatable about a position which is offset from the axis of rotation of the pulley by a distance a. The rotational motion of the manual control device is transmitted to the pulley by a rotational motion transmitting device at a position which satisfies the conditions of c>a and c>b, wherein b is the distance from the transmitting device to the axis of rotation of the pulley and c is the distance from the transmitting device to the axis of rotation of the manual control device.

REFERENCES:
patent: 377315 (1888-01-01), Mains
patent: 3897775 (1975-08-01), Furihata
patent: 4617914 (1986-10-01), Ueda
patent: 4718407 (1988-01-01), Chikama

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