Pressure-light endoscope

Details Pressure-light endoscope Pressure-light endoscope

1978-08-31

1980-06-24

Levy, Stewart J.

350 9623, 350 9632, G02B 517

Patent

active

042092280

ABSTRACT:
The present invention discloses a construction of a pressure-tight endoscope for observing a high-pressure place. The construction aims at balancing the inner and exterior pressures of the hermetic endoscope through letting in the high-pressure which bears on the exterior of the endoscope into the inner side of it through an aperture which is provided on a cover. The high-pressure also may enter through a bellows which is attached to the aperture, or from the bellows and a pipe which transmits the high-pressure on a tip portion of the endoscope to the rearward portion. In this way, the present invention prevents deformation of the endoscope due to high-pressure, or breakage of a hermetic construction, or difficulty of operation of a flexible sheath.

REFERENCES:
patent: 3498695 (1970-03-01), Brouwer
patent: 3788730 (1974-01-01), Greenleaf
patent: 3841764 (1974-10-01), Snell et al.
patent: 3843865 (1974-10-01), Nath

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