JPS642620A - Endoscope - Google Patents
EndoscopeInfo
- 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
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
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62319378A JPS642620A (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 | ||
| JP62319378A JPS642620A (en) | 1987-02-13 | 1987-12-17 | Endoscope |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH012620A JPH012620A (en) | 1989-01-06 |
| JPS642620A true JPS642620A (en) | 1989-01-06 |
| JPH0580896B2 JPH0580896B2 (en) | 1993-11-10 |
Family
ID=12312614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62319378A Granted JPS642620A (en) | 1987-02-13 | 1987-12-17 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642620A (en) |
Cited By (8)
| 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 |
-
1987
- 1987-12-17 JP JP62319378A patent/JPS642620A/en active Granted
Cited By (10)
| 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 |