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US 5,191,878 AGranted
Endoscope device
AssigneeOlympus Optical Co., Ltd.
InventorsYoshihiro Iida, Jin Kira, Yutaka Ohshima, Toshiyuki Takara, Koji Yamaya
Life of this patent
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Abstract
An endoscope device has an endoscope provided with a front end portion where a nozzle and a sucking opening are formed. A first passage and a fluid supply pump are connected to the nozzle to supply fluid to it. A second passage and a suction pump are connected to the sucking opening. Connected to the first and second passages are a third passage and a pump for circulating the fluid in such a way that it is sucked through the sucking opening and jetted through the nozzle.
Claims13
An endoscope device comprising:
- an endoscope having a front end portion provided with a nozzle and a sucking opening;
- fluid supply means haivng a first passage connected to the nozzle for supplying a fluid to said nozzle;
- suction means having a second passage connected to said sucking opening;
- fluid circulating means having a fluid circulation pump attached to a third passage, said third passage being in fluid communication with both said first and second passages, said fluid circulation means circulating a sucked-in fluid through said third passage such that said sucked-in fluid is sucked in through said sucking opening and said second passage and expelled as a jet stream through said first passage and said nozzle;
- and
- a vessel attached to said third passage, said vessel being in fluid communication with a discharge side of said circulation pump, said vessel separating a gas from said sucked in fluid flowing through said third passage.
3 more elements
Dependencies are inferred from the claim text.