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US 4,361,139 AGranted
Scirroscope
AssigneeOlympus Optical Co., Ltd.
InventorTakeji Takagi
Life of this patent
Estimating the term…
Abstract
A scirroscope includes a pipe-shaped shell tube, a channel for feeding water or passing a treatment instrument therethrough, an optics tube in which an observation optical system is disposed, and a bundle of optical fibres which defines an illumination optical system. An elastic member covers at least partly at least one of the internal periphery of the shell tube and the external periphery of the channel, the optics tube and the fibre bundle.
Claims9
A scirroscope comprising:
- (A) a rigid, non-flexible outer tubing;
- (B) a plurality of articles housed in said tubing, said articles including an observation optical system and an illumination optical system;
- (C) an elastic, resilient, shock absorbing member covering at least one of:
- (1) the internal periphery of said rigid outer tubing;
- and
- (2) the outer periphery of one of said articles;
- (D) said member serving to attenuate and absorb external shock and vibrations transmitted through said rigid outer tubing so that at least one of said articles is mechanically insulated from external mechanical shock and vibrations applied to said rigid outer tubing, said member also serving as a buffer that permits differences in thermal expansion of components of said scirroscope to occur without producing damage to said scirroscope.
4 more elements
Dependencies are inferred from the claim text.