Patent ID: 6969348
Filing Date: 2005-11-29
Classification: A61B

Abstract:
1. An endoscopic light source connector for connecting an endoscopic light guide in the form of a bundle of fiber optics detachably to a light source, said light guide having a light receiving end portion thereof encased in a rigid pipe and projected from a distal end of a connector casing over a predetermined length to form a light guide rod to be plugged into a socket portion of said light source, characterized in that said socket portion on the side of said light source comprises: a rod end holder fixedly mounted on a riser plate within a light source casing for holding a fore end portion of said guide rod, said rod end holder being composed of a fixed tubular casing fixedly mounted on said riser plate in alignment with an optical axis of an illumination light path from a source lamp of said light source, and a slide member axially slidably fitted in said tubular casing and internally defining a light guide passage for passing illumination light from said source lamp; said light guide passage in said slide member being in the form of an outwardly spread light guide passage having a conical passage portion formed by a conical inner peripheral wall portion over a predetermined axial length from an outer end of said outwardly spread light guide passage, a cylindrical passage portion formed continuously over a predetermined length from a narrowest inner end of said conical passage portion; and said slide member being constantly urged in an outward direction or in a direction toward a plugged light guide rod by a biasing means, whereby said cylindrical passage portion being adapted to receive the narrowest light guide rod and light guide rods of larger diameters being received on a conical wall surface of said conical passage portion and being held said light guide rods in pressed contact with said conical wall surface by said biasing means.