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US5697888A Expired / Lapsed US ⏱️ 0.0 years remaining

Endoscope apparatus having valve device for supplying water and gas

Assignee: Olympus Corp
•
Filing: 1995-04-12
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Granted: 1997-12-16
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Expires: 2015-04-12
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Abstract

Abstract An endoscope apparatus having main body and an outer unit. The main body has an insertion section. The outer unit comprises an inner tube removably mounted on the insertion section and an inner tube removably mounted on the inner tube. A first passage is provided between the inner tube and the outer circumferential surface of the insertion section, and a second passage is provided between the inner tube and the outer tube. Liquid is supplied to and drawn from the distal end of the insertion section through one of the passages. Gas is applied onto the distal end of the insertion section through the other of the passages.

Inventors

  • 👤 Norio Kobayashi
  • 👤 Takao Yamaguchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:49
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00064; A61B1/00066; A61B1/00068; A61B1/00131; A61B1/00135; A61B1/012; A61B1/015; A61B1/12; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/774; A61M1/772; A61M13/00; A61M13/003; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 257 words
A valve device having at least two valve bodies arranged side by side for supplying and drawing water and supplying gas, said device comprising: a valve body having a tubular cap; at least two cylinders provided in said valve body, said at least two cylinders each having an open lower end; a plurality of inlet ports corresponding in number to said at least two cylinders, said inlet ports communicating with a first one of said at least two cylinders, said inlet ports extending substantially perpendicular to an axis of said first one of said at least two cylinders and being spaced apart in an axial direction of said first one of said at least two cylinders; at least one outlet port communicating with a second one of said at least two cylinders opposing said first one of said at least two cylinders, said second one of said at least two cylinders being connected to said tubular cap of said valve body; valve means slideably mounted in said at least two cylinders for opening and closing a flow of fluid from at least one of said inlet ports to said at least one outlet port; and one cap removably coupled to said valve body, said one cap including: (i) seal members for closing the open lower ends of said at least two cylinders, respectively, and (ii) at least one partition dividing said first one of said at least two cylinders into one of: (a) a passage and a groove and (b) a passage and a second inlet port.
Claim 2
Dependent Claim 257 words
A valve device having at least two valve bodies arranged side by side for supplying and drawing water and supplying gas, said device comprising: a valve body having a tubular cap; at least two cylinders provided in said valve body, said at least two cylinders each having an open lower end; a plurality of inlet ports corresponding in number to said at least two cylinders, said inlet ports communicating with a first one of said at least two cylinders, said inlet ports extending substantially perpendicular to an axis of said first one of said at least two cylinders and being spaced apart in an axial direction of said first one of said at least two cylinders; at least one outlet port communicating with a second one of said at least two cylinders opposing said first one of said at least two cylinders, said second one of said at least two cylinders being connected to said tubular cap of said valve body; valve means slideably mounted in said at least two cylinders for opening and closing a flow of fluid from at least one of said inlet ports to said at least one outlet port; and one cap removably coupled to said valve body, said one cap including: (i) seal members for closing the open lower ends of said at least two cylinders, respectively, and (ii) at least one partition dividing said first one of said at least two cylinders into one of: (a) a passage and a groove and (b) a passage and a second inlet port.
Claim 3
Dependent Claim 14 words
The valve device according to claim 1, wherein said seal members comprise annular seals.
Claim 4
Dependent Claim 22 words
The valve device according to claim 1, wherein said cap includes passage means for allowing a fluid to pass through said cylinders.
Claim 5
Dependent Claim 18 words
The valve device according to claim 1, wherein said cap comprises a single unit made of elastic material.
Claim 6
Dependent Claim 14 words
The valve device according to claim 4, wherein said elastic material comprises silicone rubber.
Claim 7
Dependent Claim 13 words
The valve device according to claim 4, wherein said elastic material comprises fluororubber.
Claim 8
Dependent Claim 15 words
The valve device according to claim 1, wherein said cap comprises a rigid main body.
Claim 9
Dependent Claim 16 words
The valve device according to claim 7, wherein said rigid main body is made of metal.
Claim 10
Dependent Claim 17 words
The valve device according to claim 7, wherein said rigid main body is made of synthetic resin.
Claim 11
Dependent Claim 14 words
The valve device according to claim 7, wherein said seal member comprises an O-ring.

References Cited (Backward Citations)

US3903877A Cited
US4261343A Cited
US4408598A Cited
JPS6230766A Cited
US4892112A Cited
JPH02131714A Cited
US5027791A Cited
US5125910A Cited
JPH05103749A Cited
JPH0511841A Cited
US5313934A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-12-15 2001-06-16 2001-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-12-15 2005-06-16 2005-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-12-15 2009-06-16 2009-12-16 $7700.00 Window Closed / Lapsed

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