CN106667421A - Fluid passage valve, fluid passage switch valve and endoscope - Google Patents
Fluid passage valve, fluid passage switch valve and endoscope Download PDFInfo
- Publication number
- CN106667421A CN106667421A CN201510757382.7A CN201510757382A CN106667421A CN 106667421 A CN106667421 A CN 106667421A CN 201510757382 A CN201510757382 A CN 201510757382A CN 106667421 A CN106667421 A CN 106667421A
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- valve
- valve rod
- sealing
- fluid passage
- bonnet
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Abstract
The invention discloses a fluid passage valve comprising a valve cover, a valve stem and a valve piston; the valve stem is contained in the valve cover; the valve cover is provided with a fluid inlet and a fluid outlet at different heights; the valve piston is fixed inside the valve cover; the valve piston is positioned between the fluid inlet and the fluid outlet; other parts of the valve cover are in sealed status; the valve piston surrounds the valve stem; a pathway is arranged between the valve piston and the valve stem in a matched mode and is used for making the valve piston communicated up and down; an end of the valve stem is provided with a sealing part; the valve stem can seal the pathway without external force; when the valve stem moves under the action of external force, the pathway is opened. The fluid passage valve has simple structure and is convenient to operate. The invention also provides a fluid passage switch valve containing the fluid passage and an endoscope adopting the fluid passage switch valve.
Description
Technical field
The present invention relates to field of mechanical technique, more particularly to a kind of fluid passage valve, fluid passage switching valve, and a kind of endoscope using the valve.
Background technology
Endoscopic system is widely adopted in medical diagnosis.Endoscopic system can observe endoceliac internal organs etc. by being inserted into elongated insertion section in body cavity, as needed using the process utensil being inserted into insertion passage, can carry out various treatment process.Endoscope is additionally provided with for being disposed cleaning, the treatment in portion in body cavity, or is expanded body cavity and expanded the liquid feeding device of supplying gas of field of view, can send into water, liquid, air etc. into body cavity as needed.
Endoscope is supplied gas in liquid feeding device, it is required for using a kind of fluid passage switch valve, for switching between sending water and supplying gas, and do not bother to see me out water and it is unaspirated when closing water out, gas exit passageway, the valve needs to switch conveying with being accurately controlled water, gas, and needs operating characteristics good, durable in use.There is the fluid passage switch valve of various structures in prior art, but generally parts are too many, complex structure, cause operating characteristics not good, around multiple sealing rings for example on valve rod so that frictional force is larger between valve rod and valve bonnet during operation, operation smoothness is bad, or after long-time operation, part stability is not good.
The content of the invention
The present invention provides a kind of fluid passage valve, realizes being open and shut off control to path between fluid intake and fluid issuing with simple structure；And fluid passage switching valve, for realizing the switching between three fluid passages by simple structure.The present invention also provides a kind of endoscope, and its aspirated and water sending system realizes the precise control for sending water to supply gas to endoscope using the fluid passage switching valve of the present invention.
The technical scheme is that：
A kind of fluid passage valve, including valve bonnet, valve rod, valve plug；
The valve bonnet accommodates the valve rod, differing heights are provided with fluid intake and fluid issuing on the valve bonnet, the valve plug is fixedly arranged in the valve bonnet, and the height of the valve plug is located between the fluid intake and the fluid issuing, and other positions of the valve bonnet are sealing state；
The valve plug is looped around around the valve rod, the path that the valve plug can be made to communicate up and down is equipped between the valve rod, the end of the valve rod has a sealing, the valve rod can be constituted to the path when not acted on by external force and sealed, when the valve rod is moved down under external force, the path is opened.
A kind of fluid passage switching valve, including：
Valve bonnet, valve rod, button, valve plug；
The valve bonnet accommodates the valve rod, the valve bonnet inwall ring week is provided with step, it is provided with first outlet, first entrance, second outlet, second entrance on the valve bonnet from top to bottom, and the first outlet is located at the top of the step, the first entrance, second outlet, second entrance are located at the lower section of the step；
There is a through hole in the valve rod, the through hole includes the longitudinal sections that upper end is connected with the button, and the traversing section connected with the longitudinal sections, the traversing section extends transversely through the valve rod so that the inner space of the through hole and the valve bonnet；
The button is located at the top of the valve rod, is connected with the longitudinal sections of the through hole, and the button is provided with the aperture that the through hole is connected with ambient atmosphere；
The outer wall of the valve rod is surrounded with from top to bottom the first sealing ring, sealing gasket, the second sealing ring, first sealing ring, the second sealing ring are annular resilient thing, the height of first sealing ring is located at below the button, more than the first outlet, and hermetic abut the inwall of the valve bonnet；The height of the sealing gasket is located at below the first outlet, more than the step；The sealing gasket has the sealing ring of ring-type, and bottom and the leather cup that the sealing ring is integrally formed, periphery extends obliquely；Space is left between the inwall of the sealing ring and the valve bonnet, and can be displaced downwardly to the valve rod and sealed against with the step under button effect, the leather cup hermetic abuts the inwall of the valve bonnet, and the edge of the leather cup easily deforms under external force；The height of second sealing ring is located at below the first entrance, more than the second outlet, and hermetic abuts the inwall of the valve bonnet；
The height of the traversing section of the through hole in the valve rod is located at below the sealing gasket, more than second sealing ring so that the through hole is connected with the first entrance；
The valve plug is embedded in the valve bonnet, the height of the valve plug is below the second outlet, it is more than the second entrance, the valve plug is looped around around the valve rod, the path that the valve plug can be made to communicate up and down is equipped between the valve rod, the end of the valve rod has a sealing, and sealing can be constituted to the path of the valve plug when valve rod is not acted on by external force, when the valve rod in the presence of the button when moving down, the path is opened.
The invention has the beneficial effects as follows, the switching between three fluid passages is realized by simple structure so that endoscope can send water to supply gas with precise control, and operating characteristics is good, durable in use.
Description of the drawings
Fig. 1 is the generalized section of fluid passage valve of the present invention.
Fig. 2 is the dimensional structure diagram of the valve plug that fluid passage valve of the present invention is adopted.
Fig. 3 is the perspective exploded view of switching valve first embodiment in fluid passage of the present invention.
Fig. 4 is the generalized section of switching valve first embodiment in fluid passage of the present invention.
Fig. 5 is the generalized section of another state of switching valve first embodiment in fluid passage of the present invention.
Fig. 6 is the embodiment dimensional structure diagram of the valve plug that switching valve first embodiment in fluid passage of the present invention is adopted.
Fig. 7 is the dimensional structure diagram of another angle of valve plug embodiment that switching valve first embodiment in fluid passage of the present invention is adopted.
Fig. 8 is the generalized section of the fluid passage switching valve of switching valve second embodiment in fluid passage of the present invention.
Specific embodiment
Below in conjunction with the Figure of description in the present invention, the technical scheme in invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
As shown in figure 1, the fluid passage valve of the present invention, including valve bonnet 101, valve rod 102, valve plug 103；
Valve bonnet 101 accommodates valve rod 102, differing heights are provided with fluid intake 104 and fluid issuing 105 on valve bonnet 101, valve plug 103 is fixedly arranged in valve bonnet 101, and the height of valve plug 103 is located between fluid intake 104 and fluid issuing 105, and other positions of valve bonnet 101 are sealing state；
Valve plug 103 is looped around around valve rod 102, the path that valve plug can be made to communicate about 103 is equipped between valve rod 102, the end of valve rod 102 has a sealing 106, valve rod 102 can be constituted to the path when not acted on by external force and sealed, path between fluid intake 104 and fluid issuing 105 is cut off, when valve rod 102 is moved down under external force, the path between fluid intake 104 and fluid issuing 105 is opened.
Valve plug 103 has can be with the hypomere 107 of the close fit of sealing 106, and the epimere 108 that the path can be cooperatively formed with valve rod 102.
As depicted in figs. 1 and 2, the epimere 108 of valve plug 103 has scraggly upper surface, has a stopper section 109 on valve rod 102, after valve rod 102 is moved down under external force, stopper section 109 abuts with the upper surface, and the scraggly upper surface constitutes a part for the path.
In certain embodiments, the cooperation between the hypomere 107 of sealing 106 and valve plug 103 is arranged to：After sealing 106 moves down certain distance with valve rod 102, the path is just opened.Concrete structure can arrange the extension of a section and the close fit of valve plug 103 in the upper end of sealing 106 or lower end, and when valve rod 102 is moved down under external force so that the extension completely disengages from the close fit with valve plug 103, the path is just opened.
Referring to Fig. 3, Fig. 4, the fluid passage switching valve of first embodiment of the invention, including：
Valve bonnet 1, valve rod 2, button 3, valve plug 4；
Valve bonnet 1 accommodates valve rod 2, the inwall ring week of valve bonnet 1 is provided with step 10, it is provided with first outlet 6, first entrance 5, second outlet 8, second entrance 7 on valve bonnet 1 from top to bottom, and first outlet 6 is located at the top of step 10, first entrance 5, second outlet 8, second entrance 7 are located at the lower section of step 10；
There is a through hole 11 in valve rod 2, through hole 11 includes the longitudinal sections 12 that upper end is connected with button 3, and the traversing section 13 connected with longitudinal sections 12, and traversing section 13 extends transversely through valve rod 2 so that the inner space of through hole 11 and valve bonnet 1；
Button 3 is located at the top of valve rod 2, is connected with the longitudinal sections 12 of through hole 11, and button 3 is provided with the aperture 14 that through hole 11 is connected with ambient atmosphere；
The outer wall of valve rod 2 is surrounded with from top to bottom the first sealing ring 15, sealing gasket 16, the second sealing ring 17, first sealing ring 15, the second sealing ring 17 are annular resilient thing, the height of the first sealing ring 15 is located at button below 3, first outlet more than 6, and hermetic abuts the inwall of valve bonnet 1；The height of sealing gasket 16 is located at first outlet below 6, step more than 10；Sealing gasket 16 has the sealing ring 18 of ring-type, and bottom and the leather cup 19 that sealing ring 18 is integrally formed, periphery extends obliquely；Leave space between the inwall of sealing ring 18 and valve bonnet 1, and can be displaced downwardly to valve rod 2 in the case where button 3 is acted on and sealed against with step 10, leather cup 19 hermetic abuts the inwall of valve bonnet 1, and the edge of leather cup 19 easily deforms under external force；The height of the second sealing ring 17 is located at first entrance below 5, second outlet more than 8, and hermetic abuts the inwall of valve bonnet 1；
The height of the traversing section 13 of the through hole 11 in valve rod 2 is located at sealing gasket below 16, the second sealing ring more than 17 so that through hole 11 is connected with first entrance 5；
Valve plug 4 is embedded in valve bonnet 1, the height of valve plug 4 is in second outlet below 8, second entrance more than 7, valve plug 4 is looped around around valve rod 2, and the path that valve plug can be made to communicate about 4 is equipped between valve rod 2, and the end of valve rod 2 has a sealing 20, when valve rod 2 is not acted on by external force, sealing 20 can constitute sealing to the path of valve plug 4, and when valve rod 2 in the presence of button 3 when moving down, the path is opened.
With reference to Fig. 4 and Fig. 7, the course of work of fluid passage switching valve of the present invention is introduced.
The fluid passage switching valve of the present invention, can select respectively to carry out one of following operation：First fluid from first entrance 5 into the switching valve is discharged to the external world；The first fluid for entering the switching valve from first entrance 5 is discharged from first outlet 6；The second fluid for entering the switching valve from second entrance 7 is discharged from second outlet 8.
When first fluid enters the switching valve from first entrance 5, it is closed between the sealing ring 17 of leather cup 19 and second of sealing gasket 16, completely cut off with first outlet 6, second entrance 7 and second outlet 8, the first fluid enters longitudinal sections 12 from the traversing section 13 of through hole 11, and the aperture 14 from button 3 is discharged to the external world.Now the sealing 20 of the end of valve rod 2 closes path of the valve plug about 4 so that second entrance 7 is isolated with first entrance 5, first outlet 6, second outlet 8.
When operator closes the aperture 14 on button 3, the first fluid entered from first entrance 5, the external world cannot be discharged to from aperture 14, under Fluid pressure effect, the leather cup 19 of crush seal pad 16, because leather cup 19 is the structure that is easily deformed, therefore leather cup 19 of the first fluid after being deformed, into the space of the top of leather cup 19, and it is closed between the first sealing ring 15 and the second sealing ring 17, discharges from first outlet 6.Now the sealing 20 of the end of valve rod 2 closes path of the valve plug about 4 so that second entrance 7 is isolated with first entrance 5, first outlet 6, second outlet 8.
When operator closes the aperture 14 on button 3, and when pressing the button 3, valve rod is moved down into the position shown in Fig. 7, first sealing ring 15 is still located on the top of first outlet 6, the sealing ring 18 of sealing ring 16 is displaced downwardly to and is sealed against with step 10, second sealing ring 17 is still located between first entrance 5 and second outlet 8, and the sealing 20 of the end of valve rod 2 is moved down so that the path that valve plug is communicated about 4 is opened.Now first entrance 5 is isolated by the sealing ring 17 of sealing ring 18 and second, and first fluid cannot discharge switching valve by first outlet 6, second outlet 8 or second entrance 7, also cannot be discharged to the external world by through hole 11.Now, second fluid enters switching valve, Jing valve plugs being routed to up to second outlet 8 about 4 from second entrance 7, and is completely cut off by the second sealing ring 17 and below 17, discharged from second outlet 8 in the second sealing ring.
In sum, fluid passage switching valve of the invention can be realized selecting to carry out one of following operation respectively：First fluid from first entrance 5 into the switching valve is discharged to the external world；The first fluid for entering the switching valve from first entrance 5 is discharged from first outlet 6；The second fluid for entering the switching valve from second entrance 7 is discharged from second outlet 8.
Referring to Fig. 6, the one embodiment for the valve plug 4 adopted as fluid passage switching valve of the present invention, the valve plug 4 has the epimere 21 that the path can be cooperatively formed with valve rod 2, and can be with the hypomere 22 of the close fit of sealing 20.The epimere 21 has scraggly upper surface, and the hypomere 22 has the smooth contact surface that closed with sealing 22 can be abutted.Preferably, as shown in Fig. 2 the contact surface has truncated cone-shaped structure gradually expanding from top to bottom, the sealing has the truncated cone-shaped structure adaptable with it.
As shown in figure 8, the fluid passage switching valve of second embodiment of the invention, is with above-mentioned first embodiment difference, the cooperation between the hypomere 22 of the sealing 20 and valve plug 4 is arranged to：When sealing 20 with valve rod 2 after certain distance is moved down in the presence of button 3, the path is just opened.Concrete structure is, the sealing 20 has the extension 23 of a section and the inwall close fit of the valve plug 4, when operator touch the button downwards 3 when, the sealing 20 is not immediately to the depressurization of valve plug 4, but when extension 23 is moved fully to leave valve plug 4, the sealing is just released from.Said structure desirably prevents operator when preparation makes the first fluid for entering the switching valve from first entrance 5 discharge from first outlet 6, maloperation or exerting a force excessive causes button 3 to move down sub-fraction, using above-mentioned structure, even if there is described maloperation, passage between second entrance 7 and second outlet 8 is not opened immediately, prevent second fluid from discharging from second outlet 8, so that the fluid passage switching valve of the present invention has more preferable operability.
In certain embodiments, abutted by a spring between the lower periphery of the button and the upper peripheral edge of the valve bonnet so that the button is pressed and can set back automatically after unclamping.
In certain embodiments, the outer wall of the valve rod, is also surrounded with least one guide collar, and the guide collar is the non-resilient thing of ring-type, and the inwall of the valve bonnet between gap is left, for keep the valve rod along the valve bonnet inwall slide up and down when smoothness.
The present invention also provides a kind of endoscope, any one the fluid passage switching valve with the present invention.When the fluid passage switching valve of the present invention is applied in the endoscope, the first entrance connects the plenum system of endoscopic system, that is, the air pump for connecting the first entrance is continuously supplied into the first entrance；Second entrance connection endoscopic system send water system；The first outlet and the second outlet are supplied gas respectively into human body and send water, in general endoscopic system, the first outlet and the second outlet are merged into one outlet outside the fluid passage switching valve, and by a passage head end of endoscope mirror body is connected to.The endoscope of the present invention can make operator easily select to send water or supply gas in patient's body.
A kind of fluid passage valve, fluid passage switching valve and the endoscope for being provided the embodiment of the present invention above is described in detail, but the explanation of above example is only intended to help the structure and its core concept that understand the present invention, should not be construed as limiting the invention.Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in all should be included within the scope of the present invention.
Claims (10)
1. a kind of fluid passage valve, it is characterised in that including valve bonnet, valve rod, valve plug；
The valve bonnet accommodates the valve rod, differing heights are provided with fluid intake and fluid issuing on the valve bonnet, the valve plug is fixedly arranged in the valve bonnet, and the height of the valve plug is located between the fluid intake and the fluid issuing, and other positions of the valve bonnet are sealing state；
The valve plug is looped around around the valve rod, the path that the valve plug can be made to communicate up and down is equipped between the valve rod, the end of the valve rod has a sealing, the valve rod can be constituted to the path when not acted on by external force and sealed, when the valve rod is moved down under external force, the path is opened.
2. fluid passage valve according to claim 1, it is characterised in that the valve plug has can be with the hypomere of the sealing close fit, and the epimere that the path can be cooperatively formed with the valve rod.
3. fluid passage valve according to claim 2, it is characterised in that the cooperation between the hypomere of the sealing and the valve plug is arranged to：After the sealing moves down certain distance with the valve rod, the path is just opened.
4. the fluid passage valve according to Claims 2 or 3, it is characterized in that, the epimere of the valve plug has scraggly upper surface, there is a stopper section on the valve rod, after the valve rod is moved down under external force, the stopper section abuts with the upper surface, and the scraggly upper surface constitutes a part for the path.
5. a kind of fluid passage switching valve, it is characterised in that include：
Valve bonnet, valve rod, button, valve plug；
The valve bonnet accommodates the valve rod, the valve bonnet inwall ring week is provided with step, it is provided with first outlet, first entrance, second outlet, second entrance on the valve bonnet from top to bottom, and the first outlet is located at the top of the step, the first entrance, second outlet, second entrance are located at the lower section of the step；
There is a through hole in the valve rod, the through hole includes the longitudinal sections that upper end is connected with the button, and the traversing section connected with the longitudinal sections, the traversing section extends transversely through the valve rod so that the inner space of the through hole and the valve bonnet；
The button is located at the top of the valve rod, is connected with the longitudinal sections of the through hole, and the button is provided with the aperture that the through hole is connected with ambient atmosphere；
The outer wall of the valve rod is surrounded with from top to bottom the first sealing ring, sealing gasket, the second sealing ring, first sealing ring, the second sealing ring are annular resilient thing, the height of first sealing ring is located at below the button, more than the first outlet, and hermetic abut the inwall of the valve bonnet；The height of the sealing gasket is located at below the first outlet, more than the step；The sealing gasket has the sealing ring of ring-type, and bottom and the leather cup that the sealing ring is integrally formed, periphery extends obliquely；Space is left between the inwall of the sealing ring and the valve bonnet, and can be displaced downwardly to the valve rod and sealed against with the step under button effect, the leather cup hermetic abuts the inwall of the valve bonnet, and the edge of the leather cup easily deforms under external force；The height of second sealing ring is located at below the first entrance, more than the second outlet, and hermetic abuts the inwall of the valve bonnet；
The height of the traversing section of the through hole in the valve rod is located at below the sealing gasket, more than second sealing ring so that the through hole is connected with the first entrance；
The valve plug is embedded in the valve bonnet, the height of the valve plug is below the second outlet, it is more than the second entrance, the valve plug is looped around around the valve rod, the path that the valve plug can be made to communicate up and down is equipped between the valve rod, the end of the valve rod has a sealing, and sealing can be constituted to the path of the valve plug when valve rod is not acted on by external force, when the valve rod in the presence of the button when moving down, the path is opened.
6. fluid passage switching valve according to claim 1, it is characterised in that abutted by a spring between the lower periphery of the button and the upper peripheral edge of the valve bonnet.
7. fluid passage switching valve according to claim 1, it is characterised in that the valve plug has can be with the hypomere of the sealing close fit, and the epimere that the path can be cooperatively formed with the valve rod.
8. fluid passage switching valve according to claim 3, it is characterised in that the cooperation between the hypomere of the sealing and the valve plug is arranged to：When the sealing with the valve rod after certain distance is moved down in the presence of the button, the path is just opened.
9. fluid passage switching valve according to claim 3, it is characterised in that the hypomere inwall of the valve plug has truncated cone-shaped structure gradually expanding from top to bottom, the sealing has the truncated cone-shaped structure adaptable with it.
10. a kind of endoscope, with any one the fluid passage switching valve as described in claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757382.7A CN106667421B (en) | 2015-11-10 | 2015-11-10 | A kind of fluid channel valve, fluid channel switching valve and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757382.7A CN106667421B (en) | 2015-11-10 | 2015-11-10 | A kind of fluid channel valve, fluid channel switching valve and endoscope |
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| CN106667421A true CN106667421A (en) | 2017-05-17 |
| CN106667421B CN106667421B (en) | 2019-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510757382.7A Active CN106667421B (en) | 2015-11-10 | 2015-11-10 | A kind of fluid channel valve, fluid channel switching valve and endoscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522396A (en) * | 2019-09-04 | 2019-12-03 | 重庆金山医疗技术研究院有限公司 | A kind of medical endoscope and its aqueous vapor switching valve |
| WO2020099441A1 (en) * | 2018-11-15 | 2020-05-22 | Olympus Winter & Ibe Gmbh | Medical instrument for endoscopic uses, and device for regulating a stream of flushing liquid for a medical instrument |
| WO2020251948A1 (en) * | 2019-06-10 | 2020-12-17 | Boston Scientific Scimed, Inc. | Medical cleaning valve |
| CN114233892A (en) * | 2022-02-24 | 2022-03-25 | 杭州莱恩瑟特医疗技术有限公司 | Gas-liquid switching valve and endoscope |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184221A (en) * | 1996-11-29 | 1998-06-10 | 张腾广 | Water-saving tap capable of being turned on or off through rotation, depressing and treading |
| JP2005245668A (en) * | 2004-03-03 | 2005-09-15 | Pentax Corp | Connector for cleaning water pipe of endoscope |
| CN101371066A (en) * | 2006-01-17 | 2009-02-18 | 施雷德有限公司 | Gas injection valve with two positions of closure |
| CN102406497A (en) * | 2010-09-22 | 2012-04-11 | 富士胶片株式会社 | Suction button assembly for endoscope |
| CN103006166A (en) * | 2011-09-26 | 2013-04-03 | 富士胶片株式会社 | Fluid pipeline switching device and endoscope |
| CN204293107U (en) * | 2014-11-20 | 2015-04-29 | 珠海迈德豪医用科技有限公司 | A kind of suction device of endoscope |
| CN104853667A (en) * | 2013-04-18 | 2015-08-19 | 奥林巴斯株式会社 | Endoscopic tube switching device, endoscope, and production method for endoscopic tube switching device |
-
2015
- 2015-11-10 CN CN201510757382.7A patent/CN106667421B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184221A (en) * | 1996-11-29 | 1998-06-10 | 张腾广 | Water-saving tap capable of being turned on or off through rotation, depressing and treading |
| JP2005245668A (en) * | 2004-03-03 | 2005-09-15 | Pentax Corp | Connector for cleaning water pipe of endoscope |
| CN101371066A (en) * | 2006-01-17 | 2009-02-18 | 施雷德有限公司 | Gas injection valve with two positions of closure |
| CN102406497A (en) * | 2010-09-22 | 2012-04-11 | 富士胶片株式会社 | Suction button assembly for endoscope |
| CN103006166A (en) * | 2011-09-26 | 2013-04-03 | 富士胶片株式会社 | Fluid pipeline switching device and endoscope |
| CN104853667A (en) * | 2013-04-18 | 2015-08-19 | 奥林巴斯株式会社 | Endoscopic tube switching device, endoscope, and production method for endoscopic tube switching device |
| US20150257634A1 (en) * | 2013-04-18 | 2015-09-17 | Olympus Corporation | Endoscopic channel switching device, endoscope, and manufacturing method of endoscopic channel switching device |
| CN204293107U (en) * | 2014-11-20 | 2015-04-29 | 珠海迈德豪医用科技有限公司 | A kind of suction device of endoscope |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020099441A1 (en) * | 2018-11-15 | 2020-05-22 | Olympus Winter & Ibe Gmbh | Medical instrument for endoscopic uses, and device for regulating a stream of flushing liquid for a medical instrument |
| WO2020251948A1 (en) * | 2019-06-10 | 2020-12-17 | Boston Scientific Scimed, Inc. | Medical cleaning valve |
| US11187329B2 (en) | 2019-06-10 | 2021-11-30 | Boston Scientific Scimed, Inc. | Medical cleaning valve |
| US11603939B2 (en) | 2019-06-10 | 2023-03-14 | Boston Scientific Scimed, Inc. | Medical cleaning valve |
| US11898642B2 (en) | 2019-06-10 | 2024-02-13 | Boston Scientific Scimed, Inc. | Medical cleaning valve |
| CN110522396A (en) * | 2019-09-04 | 2019-12-03 | 重庆金山医疗技术研究院有限公司 | A kind of medical endoscope and its aqueous vapor switching valve |
| CN110522396B (en) * | 2019-09-04 | 2021-11-16 | 重庆金山医疗技术研究院有限公司 | Medical endoscope and aqueous vapor diverter valve thereof |
| CN114233892A (en) * | 2022-02-24 | 2022-03-25 | 杭州莱恩瑟特医疗技术有限公司 | Gas-liquid switching valve and endoscope |
| WO2023160303A1 (en) * | 2022-02-24 | 2023-08-31 | 杭州莱恩瑟特医疗技术有限公司 | Gas-liquid switching valve and endoscope |
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| CN106667421B (en) | 2019-11-01 |
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