Rigid endoscope of oblique window type

Details Rigid endoscope of oblique window type Rigid endoscope of oblique window type

1985-01-30

1986-10-07

Grieb, William H.

Surgery

Truss

Perineal

A61B 106

Patent

active

046153330

ABSTRACT:
A lens tube capable to view obliquely forwards through an observation optical system having the oblique tip face inclined from a plane perpendicular to the longitudinal axis of tubular sheath tube comprising the outer periphery of probe of endoscope is arranged eccentrically from the central axis of the sheath tube and an illuminating optical system is arranged in the residual space between the lens tube and the sheath tube for transmitting the illuminating light and the outlet tip is formed into an oblique face inclined adversely to the inclination of oblique tip face of the lens tube, thereby issuing the illuminating light to the viewing direction of rigid endoscope of oblique window type.

REFERENCES:
patent: 3278738 (1966-10-01), Clark
patent: 3592199 (1971-07-01), Ostensen
patent: 4361139 (1982-11-01), Takagi

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