04700693 is referenced by 162 patents and cites 9 patents.

A steering section for an endoscope or borescope employs a plurality of steering cables passing through peripheral bores in axially aligned flat washers. Spacer beads are strung on the cables between the washers to define hinges for the bending of the steering section. Pairs of hemispherical beads are employed for this purpose, and are disposed nose-to-nose, that is, with their spherical surfaces rocking on one another. Tuning spacer beads are provided in selected inter-washer spaces to limit the bending of the tuning section in one direction. To achieve the smallest possible dimension, the washers can be formed with an oval or elongated passageway.

Title
Endoscope steering section
Application Number
6/806667
Publication Number
4700693
Application Date
December 9, 1985
Publication Date
October 20, 1987
Inventor
Robert L Vivenzio
Auburn
NY, US
Raymond A Lia
Auburn
NY, US
Agent
Bruns and Wall
Assignee
Welch Allyn
NY, US
IPC
A61B 1/00
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