Surgery – Endoscope – Having auxiliary channel
Patent
1997-01-03
1998-11-03
Flanagan, Beverly M.
Surgery
Endoscope
Having auxiliary channel
604257, 137433, A61B 112
Patent
active
058301283
ABSTRACT:
A liquid feed device for feeding a liquid to an endoscopic or ultrasound insertion instrument or the like from a liquid feeder tank containing a supply of a feed liquid. A liquid feed pipe and an atmospheric pipe which are led into the feeder tank are provided with flexible pipe portions formed of a flexible material of greater specific gravity than the feed liquid in the tank and suspended flexibly within the feeder tank to hang down always in a vertical position by gravity and in such a way as to hold a liquid intake end of the liquid pipe in a deeper position than a pressure discharge opening of the atmospheric pipe relative to the liquid surface even when the feeder tank is turned from an upright position into a tilted position through a certain angle or vice versa.
REFERENCES:
patent: 3667464 (1972-06-01), Alligood, Jr.
patent: 4099527 (1978-07-01), Howell
patent: 5297537 (1994-03-01), Savitt et al.
patent: 5423346 (1995-06-01), Daoud
Flanagan Beverly M.
Fuji Photo Optical Co., Ltd.
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