JPS642620A - Endoscope - Google Patents

Endoscope

Info

Publication number
JPS642620A
JPS642620A JP62319378A JP31937887A JPS642620A JP S642620 A JPS642620 A JP S642620A JP 62319378 A JP62319378 A JP 62319378A JP 31937887 A JP31937887 A JP 31937887A JP S642620 A JPS642620 A JP S642620A
Authority
JP
Japan
Prior art keywords
valve chamber
hole
valve
leak
downstream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62319378A
Other languages
Japanese (ja)
Other versions
JPH0580896B2 (en
JPH012620A (en
Inventor
Shigeru Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP62-319378A priority Critical patent/JPH012620A/en
Priority claimed from JP62-319378A external-priority patent/JPH012620A/en
Priority to US07/153,334 priority patent/US4800869A/en
Publication of JPS642620A publication Critical patent/JPS642620A/en
Publication of JPH012620A publication Critical patent/JPH012620A/en
Publication of JPH0580896B2 publication Critical patent/JPH0580896B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

PURPOSE: To prevent the high pressure gas from a seal part from flowing in a patient by escaping said gas to the outside of an endoscope, by forming a leak passage for releasing carrier gas to the outside to a seal member, which holds the downstream part of an opening and closing valve and a flow passage through which the carrier gas flows, on the downstream side thereof.
CONSTITUTION: A leak hole 100 is formed in a piston 81 along the axial direction thereof and a hole part 101 is provided to the peripheral wall of the leak hole 100 on the bottom part side thereof. When a button part 89 is pushed in from a stand-by state C while the leak hole 100 is closed by a finger, the port of a valve seat 80b is opened by the falling of the piston 81 as shown by a state D and a valve chamber 83 communicates with a valve chamber 104 and the carbon dioxide flowing out from an upstream side pipeline 10b passes through the first hole part 92, the valve chamber 83, the valve seat 80b, the valve chamber 104 and the second hole part 93 to be sent in a downstream side pipeline 10a. Even when excessive carrier gas is generated in use, since a leak passage is formed on the downstream side of a valve part 88 and a hermeticall seal 96, the gas flowing in a valve chamber 99 and the valve chamber 104 toward a patient (downstream pipeline 10a) but leaks to the atmosphere from the leak hole 100 and treatment can be performed always safely.
COPYRIGHT: (C)1989,JPO&Japio
JP62-319378A 1987-02-13 1987-12-17 Endoscope Granted JPH012620A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62-319378A JPH012620A (en) 1987-02-13 1987-12-17 Endoscope
US07/153,334 US4800869A (en) 1987-02-13 1988-02-08 Endoscope

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3075987 1987-02-13
JP62-30759 1987-02-13
JP62-319378A JPH012620A (en) 1987-02-13 1987-12-17 Endoscope

Publications (3)

Publication Number Publication Date
JPS642620A true JPS642620A (en) 1989-01-06
JPH012620A JPH012620A (en) 1989-01-06
JPH0580896B2 JPH0580896B2 (en) 1993-11-10

Family

ID=

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150903U (en) * 1988-04-04 1989-10-18
JP2008048796A (en) * 2006-08-23 2008-03-06 Pentax Corp Air supply and water supply operation valve of endoscope
JP2010259565A (en) * 2009-05-01 2010-11-18 Hoya Corp Adapter for endoscope
JP2012081083A (en) * 2010-10-12 2012-04-26 Fujifilm Corp Conduit switching device for endoscope
WO2014080807A1 (en) 2012-11-21 2014-05-30 オリンパスメディカルシステムズ株式会社 Flow passage switching valve unit for endoscope, and endoscope
WO2014087745A1 (en) * 2012-12-04 2014-06-12 オリンパスメディカルシステムズ株式会社 Endoscope conduit switching device
JPWO2013099445A1 (en) * 2011-12-26 2015-04-30 Hoya株式会社 Endoscope valve
JP2020121953A (en) * 2019-01-31 2020-08-13 株式会社ファンケル Cosmetic

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01150903U (en) * 1988-04-04 1989-10-18
JPH0527923Y2 (en) * 1988-04-04 1993-07-16
JP2008048796A (en) * 2006-08-23 2008-03-06 Pentax Corp Air supply and water supply operation valve of endoscope
JP2010259565A (en) * 2009-05-01 2010-11-18 Hoya Corp Adapter for endoscope
JP2012081083A (en) * 2010-10-12 2012-04-26 Fujifilm Corp Conduit switching device for endoscope
JPWO2013099445A1 (en) * 2011-12-26 2015-04-30 Hoya株式会社 Endoscope valve
WO2014080807A1 (en) 2012-11-21 2014-05-30 オリンパスメディカルシステムズ株式会社 Flow passage switching valve unit for endoscope, and endoscope
US9307890B2 (en) 2012-11-21 2016-04-12 Olympus Corporation Endoscopic fluid passage changeover valve unit and endoscope
WO2014087745A1 (en) * 2012-12-04 2014-06-12 オリンパスメディカルシステムズ株式会社 Endoscope conduit switching device
JP2020121953A (en) * 2019-01-31 2020-08-13 株式会社ファンケル Cosmetic

Also Published As

Publication number Publication date
JPH0580896B2 (en) 1993-11-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees