Surgery – Endoscope – Having auxiliary channel
Reexamination Certificate
2006-01-10
2006-01-10
Dvorak, Linda C. M. (Department: 3739)
Surgery
Endoscope
Having auxiliary channel
C600S154000, C251S149000, C251S149100
Reexamination Certificate
active
06984204
ABSTRACT:
An endoscopic liquid feed device to be fitted on a mouth piece of a liquid feed port which is provided on a casing of a manipulating head assembly of an endoscope in communication with an internal liquid feed passage leading to a liquid injection port at a distal end of an insertion tube of the endoscope for injecting a liquid into a body cavity. A liquid feed adaptor is detachably fitted on the mouth piece of the liquid feed port. The liquid feed adaptor is largely constituted by a Luer-Lok member having a check valve member fitted on a fore end portion thereof, a stopper ring fitted on the outer periphery of the Luer-Lok member, and a nut member rotatably fitted on the Luer-Lok member for axial displacements between the stopper ring and a flange portion provided at the outer proximal end of the Luer-Lok member. The nut member is threaded on an external screw provided on the outer periphery of the mouth piece. A Luer-Lok portion is provided within the mouth piece, and, in place of the liquid feed adaptor, a wash liquid syringe can be connected to the Luer-Lok portion of the mouth piece at the time of washing the internal liquid feed passage of the endoscope.
REFERENCES:
patent: 4649904 (1987-03-01), Krauter et al.
patent: 5114408 (1992-05-01), Fleischhaker et al.
patent: 5685858 (1997-11-01), Kawand
Dvorak Linda C. M.
Fujinon Corporation
Kasztejna Matthew J.
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