CN104434005A - Fluid control valve for endoscope and fluid control system - Google Patents
Fluid control valve for endoscope and fluid control system Download PDFInfo
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- CN104434005A CN104434005A CN201410613203.8A CN201410613203A CN104434005A CN 104434005 A CN104434005 A CN 104434005A CN 201410613203 A CN201410613203 A CN 201410613203A CN 104434005 A CN104434005 A CN 104434005A
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- 239000012530 fluid Substances 0.000 title claims abstract description 87
- 230000008676 import Effects 0.000 claims description 21
- 230000000994 depressogenic effect Effects 0.000 claims description 9
- 230000003467 diminishing effect Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 45
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 230000003902 lesion Effects 0.000 description 4
- 102000010637 Aquaporins Human genes 0.000 description 3
- 108010063290 Aquaporins Proteins 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 3
- 239000010839 body fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 108091006146 Channels Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011846 endoscopic investigation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
The invention provides a fluid control valve for an endoscope and a fluid control system. The fluid control valve for the endoscope and the fluid control system are used for controlling the endoscope to feed fluid substances into a body cavity of a patient. The fluid control valve comprises a valve seat and a valve element, wherein the valve seat is provided with an inlet and an outlet, and the valve element is rotatably sleeved with the valve seat in a gapless mode. The valve element is provided with a first channel. When the valve element rotates to the first position relative to the valve seat, the first channel is communicated with the inlet and the outlet. The valve element is provided with a hollow segment, wherein the hollow segment extends downwards from an opening in the upper end of the valve element and is not communicated with the first channel. The valve element is provided with a first through hole communicated with the hollow segment. When the valve element rotates to the second position relative to the valve seat, the first through hole is communicated with the outlet. The endoscope can control different channels through the fluid control valve to deliver fluid into the body cavity of the patient.
Description
Technical field
The present invention relates to endoscopic technique field, be specifically related to a kind of endoscopic fluid control valve and fluid control systems.
Background technology
Medical flexible endoscope system, normally on the operating portion of endoscope body, be provided with elongated tubular insertion, described operating portion is connected to light source, the processor unit of endoscopic system again via the total adapter of endoscope by elongated cable, described processor unit is also connected with display unit.During use, by elongated insertion section insertosome intracavity, by the imaging apparatus that insertion section head end is arranged, obtain endoceliac picture signal, described picture signal is transferred to outside body cavity by the signal cable run through in insertion section, carries out information processing by the processor unit of endoscopic system, and image is presented at display unit for doctor and observes endoceliac focus situation, by pincers road, the operations such as biopsy can also be carried out by adnexa.
In some cases, in order to obtain the more clear image of lesions position accurately, or obtaining operation technique real time imaging accurately, needing to utilize endoscope to rinse lesions position, sometimes also need to inject medicinal liquid to lesions position, therefore need to use endoscope and send water system.
Existing a kind of endoscope send water system, it has a water inlet be arranged on the total adapter of described endoscope, described send water system to have to extend to from described water inlet, via described elongated cable and described insertion section insertion section head end send aquaporin, whether described water inlet is circumscribed with water pump, control to body cavity inner water-supply by controlling the switch of water pump.
Existing another kind of endoscope send water system, there is a water inlet be arranged in described endoscopic procedure portion, described send water system to have to extend to from described water inlet, via described insertion section insertion section head end send aquaporin, described water inlet also can control to send water by water pump outward, but because this operating portion needs hand-held operation, for avoiding operation inconvenience, generally do not connect water pump outward at this water inlet, when needs rinse focus, adopt syringe to aim at described water inlet and carry out water filling.This structure send water system, send aquaporin described in can also passing through, utilize syringe that medicinal liquid is sent to endoceliac affected area.
But, the endoscope of the first structure above-mentioned send water system, because water pump is external device (ED), user is after the operating portion of operation endoscopic system, also need the switch removing to operate water pump in addition just can carry out sending water management, and generally having certain distance between endoscopic procedure portion and water pump, this causes inconvenience to user.Further, if need to send into medicinal liquid in body cavity, need the water source switching be connected with water pump to become medicinal liquid, very inconvenient.
The endoscope of above-mentioned the second structure send water system, although can select to send into water or medicinal liquid, adopts syringe liquor charging to need extra operating procedure, needs multi-pass operation during a large amount of liquor charging, can not carry out automatic liquor charging and control easily.
In addition, in some cases, need to send into the flowing materials such as water, medicinal liquid or gas easily in body cavity, the endoscope of above two kinds of structures send water system passage single, is not easy to operation.
Summary of the invention
In order to solve the problem, the invention provides a kind of endoscopic fluid by-pass valve control, in body cavity, send into flowing material by different passage for controlling endoscope easily.
The technical solution used in the present invention is: a kind of endoscopic fluid control valve, comprising: valve seat, the sidewall of described valve seat has import and outlet; Spool, described spool gapless is set in described valve seat rotationally, and described spool has first passage, and when described spool turns to primary importance relative to described valve seat, described first passage is communicated with described import and described outlet; Described spool upper end is opening, described spool have from described Open Side Down extend and the hollow section be not communicated with described first passage, described spool has the first through hole being communicated with described hollow section, when described spool turns to the second position relative to described valve seat, described first through hole and described outlet; Described spool also has one for rotating the striking gear of described spool.
The invention has the beneficial effects as follows, make endoscope can control different passage conveniently by control valve for fluids and send into fluid in body cavity.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of endoscopic fluid control valve of the present invention.
Fig. 2 is the perspective exploded view of endoscopic fluid control valve of the present invention.
Fig. 3 is the longitudinal profile schematic diagram of endoscopic fluid control valve embodiment one structure of the present invention.
Fig. 4 is the transverse sectional view of endoscopic fluid control valve embodiment one distressed structure of the present invention.
Fig. 5 is the longitudinal profile schematic diagram of endoscopic fluid control valve embodiment two structure of the present invention.
Fig. 6 is the longitudinal profile schematic diagram of endoscopic fluid control valve embodiment three structure of the present invention.
Fig. 7 is the transverse sectional view of endoscopic fluid control valve embodiment four structure of the present invention.
Fig. 8 is the transverse sectional view of endoscopic fluid control valve embodiment four distressed structure of the present invention.
Detailed description of the invention
Below in conjunction with the Figure of description in the present invention, be clearly and completely described the technical scheme in invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Endoscopic fluid control valve of the present invention, comprising: valve seat, the sidewall of described valve seat has import and outlet; Spool, described spool gapless is set in described valve seat rotationally, and described spool has first passage, and when described spool turns to primary importance relative to described valve seat, described first passage is communicated with described import and described outlet; Described spool upper end is opening, described spool have from described Open Side Down extend and the hollow section be not communicated with described first passage, described spool has the first through hole being communicated with described hollow section, when described spool turns to the second position relative to described valve seat, described first through hole and described outlet; Described spool also has one for rotating the striking gear of described spool.
Endoscopic fluid control valve of the present invention, when described spool turns to described primary importance relative to described valve seat, described hollow section not with described outlet, by the path of described import, described first passage, described export mixes, fluid can be sent in body cavity via described import; When described spool turns to the described second position relative to described valve seat, described first passage not with described import, described outlet, by the path of described opening, described hollow section, described first through hole, described export mixes, via described opening, fluid can be sent in body cavity.Therefore, endoscopic fluid control valve of the present invention can control in body cavity, to send into fluid by different passage easily.
See Fig. 1 to Fig. 3, endoscopic fluid control valve embodiment one of the present invention comprises:
Valve seat 1, the sidewall of described valve seat 1 has import 101 and outlet 102.Valve seat 1 is installed in the operating portion of endoscope, its upper part is exposed outside operating portion housing, due to endoscopic system in use, on operating portion operation and regulate frequency the highest, therefore control valve for fluids of the present invention is arranged in endoscopic procedure portion and person easy to use can operates this control valve.Import 101 is the entrances sending into the flowing material such as water, gas in described control valve for fluids, and import 101 can outer water pump.Outlet 102 is the outlets outwards being sent flowing material by described control valve for fluids, outlet 102 via the channel connection in operating portion to the head end of endoscope insertion part.
Spool 2, described spool 2 gapless is set in valve seat 1 rotationally, and spool 2 has first passage, and when spool 2 turns to primary importance relative to valve seat 1, described first passage is communicated with import 101 and outlet 102.The described first passage straight-through open-work that to be the second through hole 2011, second through hole 2011 running through spool 2 be along spool 2 radial direction.
In certain embodiments, the second through hole 2011 can also be the bending open-work by spool 2 axis, also can be the straight open-work departing from spool 2 axis.
Spool 2 upper end has opening 20, spool 2 has from opening 20 to downward-extension and the hollow section 202 be not communicated with the second through hole 2011, hollow section 202 has the first through hole 203 running through hollow section 202 side, the position lateral wall of spool 2 corresponding to the first through hole 203 has recess 204, when spool 2 turns to the second position relative to valve seat 1, recess 204 is communicated with outlet 102.In certain embodiments, the first through hole 203 also can directly 102 to be communicated with outlet, and the lateral wall of now spool 2 does not arrange recess 204.
Owing to having above-mentioned more internal structure in spool 2, the conveniently machine-shaping of spool 2, spool 2 can adopt inner spool 21 and outer spool 22 two parts to be combined into, hollow section 202 is formed in inner spool 21, outer spool 22 is formed the first through hole 203, recess 204, second through hole 2011, the lower end of inner spool 21 is positioned at the top of the first through hole 203.
Spool 2 also has one for rotating the striking gear of described spool 2, such as, be the driving lever 3 being fixedly connected on described spool 2 upper end.
Introduce the operation principle of this control valve for fluids below.
Stir driving lever 3, when making spool 2 turn to primary importance relative to valve seat 1, second through hole 2011 is communicated with import 101 and outlet 102, the flowing material such as water or gas is pumped into described control valve for fluids by water pump or the air pump of the outer connection of import 101, send described control valve for fluids via outlet 102, the passage in insertion section delivers to endoceliac affected area.Stir driving lever 3, when making spool 2 not be in primary importance relative to valve seat 1, blocked between import 101 and outlet 102 by spool 2, the flowing material such as water, gas that import 101 outside connects is not sent to endoscope insertion part head end by described control valve for fluids.
Stir driving lever 3, when making spool 2 turn to the second position relative to valve seat 1, recess 204 is communicated with outlet 102, opening 20 is communicated with outlet 102 via hollow section 202, first through hole 203, recess 204, adopt syringe to pass through opening 20 to injection water or medicinal liquid in described control valve for fluids, send to endoscope insertion part head end via outlet 102.
From above technical scheme, endoscopic fluid control valve of the present invention, by stirring driving lever 3, spool 2 is made to turn to the different primary importance of axial angle and the second position relative to valve seat 1, can select respectively to send into fluid from import 101 or send into fluid from opening 20, when lesions position needs different process, such as water rinse, medicinal liquid process or insufflation gas time, can send into respectively from different passages, and control conveniently.Such as can connect water pump by outside import 101, when needs send water to rinse to affected part, driving lever 3 is dialed to described primary importance, when not needing to send water to affected part, driving lever 3 is dialed to the described second position, medicinal liquid can be sent into from opening 20 by syringe, avoid the inconvenience of the pump switch needing command range far away, and, due in clinical practice, the demand sending into medicinal liquid is fewer than the demand sending water to rinse a lot, and therefore control valve for fluids of the present invention avoids needs frequent use syringe to send into water and send into the inconvenience of medicinal liquid.
See Fig. 4, in certain embodiments, described first passage is the recess 2012 being arranged at spool 2 outer surface along spool 2 circumferencial direction.When spool 2 turns to described primary importance relative to valve seat 1, recess 2012 is communicated with import 101 and outlet 102.Recess 2012 is curved on the cross section perpendicular to spool 2 axis, sickleshaped or arc.
See Fig. 5, the control valve for fluids of the embodiment of the present invention two, there is in the inner side of hollow section 202 narrow lower wealthy step 205 on, step 205 place abuts a piston 206, one end that piston 206 sealed step 205 is narrow, and one end that blow-by step 205 is wealthy, piston 206 is connected to the bottom of hollow section 202 by the first elastic 207.
Owing to not needing a direct sending water in endoscopic procedure, therefore spool 2 relative to the normal configuration state of valve seat 1 for being in the described second position, and now opening 20 is communicated with outlet 102, opening 20 is back to for avoiding endoceliac body fluid, adopt above-mentioned structure to form a check device in spool 2 inside, make opening 20 and body cavity interior be communicated with passage there is a check valve.When adopting syringe to inject fluid in valve body, the pressure of fluid backs down piston 206, now the first elastomeric element 207 produces deformation, fluid flows into the wealthy one end of step 205 via the gap of piston 206 periphery, thus flow out valve body via the first through hole 203, recess 204, outlet 102, sent in body cavity by the passage in insertion section.When not to opening 20 injecting fluid, elastomeric element 207 recovers deformation, promote piston 206 and playback, one end that sealed step 205 is narrow, thus endoceliac body fluid can not be back to opening 20.
From above technical scheme, the control valve for fluids of the present embodiment, owing to have employed check valve in the hollow section 202 in spool 2, when described control valve for fluids spool 2 can be prevented to be in the second position of its its normal orientation relative to valve seat 1, body fluid is back to outside valve body.
See Fig. 6, the control valve for fluids of the embodiment of the present invention three, between step 205 its narrow one end and wealthy one end be one gradually transition fall wedge side wall 208, piston 206 has and falls the wedge structure that adapts of wedge side wall 208.
The structure that described wedge side wall 208 and the piston 206 of wedge structure adapt can increase the contact area inside piston 206 and hollow section 202, and piston 206 can be made better relative to the alignment of step 205, thus non-return better effects if.
In above-described embodiment two, embodiment three, preferably, described hollow section 202, the part of step 205 is extended to from opening 20, for the diminishing wedge structure of cross-sectional area, when making to inject feeding fluid from opening 20, larger pressure can be had at piston 206 top, thus more easily back down piston 206.
See Fig. 7, the control valve for fluids of the embodiment of the present invention four, on the basis of embodiment three structure, its spool 2 is in the position of hollow section less than 202, it is such as the position of B-B ' in figure 6, have the third through-hole 209 that runs through spool 2 side, the cephalic par 211 in third through-hole 209 with the second elastomeric element 210, second elastomeric element 210 has towards the sphere outside third through-hole 209; When spool 2 turns to described primary importance and the described second position respectively relative to valve seat 1, the position that the medial wall of valve seat 1 corresponds to cephalic par 211 has depressed part 212 respectively, and cephalic par 211 abuts depressed part 212 respectively.
When stirring driving lever 3 and making spool 2 turn to described primary importance and the described second position respectively relative to valve seat 1, cephalic par 211 abuts two depressed parts 212 respectively, now, other axial locations are in relative to spool 2 opposite valve seat 1, second elastomeric element 210 produces less deformation, therefore cephalic par 211 is more stable is placed in two depressed parts 212, needing to impose larger power to driving lever 3 just can make cephalic par 211 leave depressed part 212, thus, spool 2 can turn to described primary importance and the described second position respectively more accurately relative to valve seat 1, handled easily.
See Fig. 8, in certain embodiments, third through-hole 209 runs through the both sides of spool 2, the cephalic par of elastomeric element 210 and tail end have the sphere towards third through-hole 209 outside respectively, when making spool 2 be in described primary importance and the described second position relative to valve seat 1 position more accurately, more firm.
Structure described in Fig. 7 and Fig. 8, can also implement in the structure of embodiment one, embodiment two.
The present invention also provides a kind of endoscopic fluid control system, comprise first fluid input block, second fluid input block, described endoscopic fluid control system also comprises any one endoscopic fluid control valve aforesaid, sends into fluid in order to select the described first fluid input block of control and described second fluid input block in body cavity.Described first fluid input block connects the import 101 of described control valve for fluids, and described second fluid input block connects the opening 20 of described control valve for fluids.Particularly, described first fluid input block can be water pump, and described second fluid input block can be syringe.
Have employed the endoscopic system of fluid control systems of the present invention, can select easily to control still in body cavity, to send into fluid by described second fluid input block by described first fluid input block, thus more convenient operation when making endoscopic system select switch fluids to originate.
A kind of endoscopic fluid control valve provided the embodiment of the present invention above and fluid control systems are described in detail, but the explanation of above embodiment just understands structure of the present invention and core concept thereof for helping, and should not be construed as limitation of the present invention.Those skilled in the art are in the technical scope that the present invention discloses, and the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (10)
1. an endoscopic fluid control valve, comprising:
Valve seat, the sidewall of described valve seat has import and outlet;
Spool, described spool gapless is set in described valve seat rotationally, and described spool has first passage, and when described spool turns to primary importance relative to described valve seat, described first passage is communicated with described import and described outlet;
It is characterized in that, described spool upper end is opening, described spool have from described Open Side Down extend and the hollow section be not communicated with described first passage, described spool has the first through hole being communicated with described hollow section, when described spool turns to the second position relative to described valve seat, described first through hole and described outlet;
Described spool also has one for rotating the striking gear of described spool.
2. control valve for fluids according to claim 1, is characterized in that: described first passage is the second through hole running through described spool.
3. control valve for fluids according to claim 1, is characterized in that: described first passage is the recess being arranged at described valve core outer surface along described valve element circle circumferential direction.
4. endoscopic fluid control valve according to claim 1, is characterized in that:
The side of the through described hollow section of described first through hole, the position lateral wall of described spool corresponding to described first through hole has recess, when described spool turns to the second position relative to described valve seat, described recess and described outlet.
5. endoscopic fluid control valve according to claim 1, is characterized in that:
There is inside described hollow section narrow lower wealthy step on, described step place abuts a piston, one end that described in described piston seal, step is narrow, and one end that step described in blow-by is wealthy, described piston is connected to the bottom of described hollow section by the first elastomeric element.
6. endoscopic fluid control valve according to claim 5, is characterized in that:
Described step, between its narrow one end and wealthy one end be one gradually transition fall wedge side wall, described piston have with described fall the wedge structure that adapts of wedge side wall.
7. the endoscopic fluid control valve according to claim 5 or 6, is characterized in that:
Described hollow section, extends to the part of described step from described opening, be the diminishing wedge structure of cross-sectional area.
8. the endoscopic fluid control valve according to claim 1-7, is characterized in that:
Described spool, the position below described hollow section, also has the third through-hole that at least runs through described spool side, has the second elastomeric element in described third through-hole, and the cephalic par of described second elastomeric element has towards the sphere outside described third through-hole;
When described spool turns to described primary importance and the described second position respectively relative to described valve seat, the position that the medial wall of described valve seat corresponds to described cephalic par has depressed part respectively, and described cephalic par abuts described depressed part respectively.
9. endoscopic fluid control valve according to claim 8, is characterized in that:
Described third through-hole runs through the both sides of described spool, and the cephalic par of described second elastomeric element and tail end have towards the sphere outside described third through-hole respectively;
When described spool turns to described primary importance and the described second position respectively relative to described valve seat, the position that the medial wall of described valve seat corresponds to described cephalic par and described tail end has depressed part respectively, and described cephalic par and described tail end abut described depressed part respectively.
10. an endoscopic fluid control system, is characterized in that, has any one endoscopic fluid control valve as described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613203.8A CN104434005B (en) | 2014-11-05 | 2014-11-05 | A kind of endoscopic fluid control valve and fluid control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613203.8A CN104434005B (en) | 2014-11-05 | 2014-11-05 | A kind of endoscopic fluid control valve and fluid control systems |
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| Publication Number | Publication Date |
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| CN104434005A true CN104434005A (en) | 2015-03-25 |
| CN104434005B CN104434005B (en) | 2017-04-05 |
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| CN201410613203.8A Active CN104434005B (en) | 2014-11-05 | 2014-11-05 | A kind of endoscopic fluid control valve and fluid control systems |
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Cited By (5)
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| CN105212881A (en) * | 2015-10-26 | 2016-01-06 | 深圳开立生物医疗科技股份有限公司 | A kind of joint, endoscope send water system and endoscope |
| CN108784760A (en) * | 2018-06-26 | 2018-11-13 | 陈克银 | A kind of needle knife mirror gas-liquid conversion device for casting |
| CN112057029A (en) * | 2020-08-27 | 2020-12-11 | 苏州新光维医疗科技有限公司 | Endoscope gas-liquid conveying device |
| CN113413125A (en) * | 2021-07-16 | 2021-09-21 | 浙江夸迈医疗器械有限公司 | Multifunctional choledochoscope |
| CN116763236A (en) * | 2023-08-21 | 2023-09-19 | 湖南省华芯医疗器械有限公司 | Rotary spray head, front end assembly and endoscope |
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| CN105212881A (en) * | 2015-10-26 | 2016-01-06 | 深圳开立生物医疗科技股份有限公司 | A kind of joint, endoscope send water system and endoscope |
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| CN116763236A (en) * | 2023-08-21 | 2023-09-19 | 湖南省华芯医疗器械有限公司 | Rotary spray head, front end assembly and endoscope |
| CN116763236B (en) * | 2023-08-21 | 2024-01-19 | 湖南省华芯医疗器械有限公司 | Rotary spray head, front end assembly and endoscope |
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| Publication number | Publication date |
|---|---|
| CN104434005B (en) | 2017-04-05 |
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