Curving device in an endoscope

Details Curving device in an endoscope Curving device in an endoscope

1977-11-18

1980-12-02

Michell, Robert W.

Surgery

Truss

Perineal

137122, 137134, A61B 100

Patent

active

042365090

ABSTRACT:
The curving device in an endoscope is made highly flexible yet resistant to bending. The guide tube of the curving end section is provided with a groove or ring-shaped grooves which are formed respectively spirally or at equal intervals in the outer wall of the guide tube. The coil is made of a wire whose diameter is substantially equal to the depth of the groove or grooves and smaller than the width of the groove or grooves. The coil is fitted into the groove or grooves in a spiral manner.

REFERENCES:
patent: 559968 (1896-05-01), Brooks
patent: 2448485 (1948-08-01), Chernack
patent: 2720221 (1955-10-01), Neilson
patent: 3162214 (1964-12-01), Bazinet Jr.
patent: 3670721 (1972-06-01), Fukami et al.
patent: 4098298 (1978-07-01), Vohrer

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