ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH
First Claim
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1. An endoscope comprising:
- an insertion section which is inserted in a body cavity;
a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window;
a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source;
a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source; and
a nozzle having a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window,wherein an opening end of the liquid feed path and an opening end of the gas feed path are disposed in an order of proximity to the jet outlet.
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Abstract
An endoscope includes, an insertion section, a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window, a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source, a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source, and a nozzle having a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end of the liquid feed path and an opening end of the gas feed path are disposed in an order of proximity to the jet outlet.
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Citations
21 Claims
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1. An endoscope comprising:
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an insertion section which is inserted in a body cavity; a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window; a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source; a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source; and a nozzle having a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end of the liquid feed path and an opening end of the gas feed path are disposed in an order of proximity to the jet outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A distal end cap-equipped endoscope comprising:
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an insertion section which is inserted in a body cavity; a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window; a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source; a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source; a distal end cap which is detachably attached to the distal end section body; and a nozzle which is provided in the distal end cap and has a jet outlet which jets a mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end communicating with the liquid feed path and an opening end communicating with the gas feed path are successively disposed in an order of the liquid feed path and the gas feed path in an order of proximity to the jet outlet. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An endoscope cleaning sheath comprising:
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a cleaning sheath body which is fitted over an insertion section of an endoscope having at least an observation window at a distal end section body; a liquid feed path which is provided in the cleaning sheath body and communicates with a liquid feed source; a gas feed path which is provided in the cleaning sheath body and communicates with a gas feed source; and a nozzle which is provided in the cleaning sheath body and has a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end of the liquid feed path and an opening end of the gas feed path are successively disposed in an order of proximity to the jet outlet. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification
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Current AssigneeOlympus Medical Systems Corporation (Olympus Corporation)
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Original AssigneeOlympus Medical Systems Corporation (Olympus Corporation)
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InventorsMIYAMOTO, Shinichi, SUZUKI, Akira
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Application NumberUS12/410,734Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current600/157CPC Class CodesA61B 1/00091 NozzlesA61B 1/00135 Oversleeves mounted on the ...A61B 1/00137 End pieces at either end of...A61B 1/0125 Endoscope within endoscopeA61B 1/126 provided with means for cle...
