CN106310512A - Split type micro valve - Google Patents
Split type micro valve Download PDFInfo
- Publication number
- CN106310512A CN106310512A CN201610840900.6A CN201610840900A CN106310512A CN 106310512 A CN106310512 A CN 106310512A CN 201610840900 A CN201610840900 A CN 201610840900A CN 106310512 A CN106310512 A CN 106310512A
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- China
- Prior art keywords
- valve
- valve body
- spool
- split
- declines
- 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.)
- Pending
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- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000003814 drug Substances 0.000 description 11
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- 238000002347 injection Methods 0.000 description 6
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- 239000007769 metal material Substances 0.000 description 2
- 239000006199 nebulizer Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
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- 208000031872 Body Remains Diseases 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
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- 230000036592 analgesia Effects 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
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- 201000011510 cancer Diseases 0.000 description 1
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- 239000012895 dilution Substances 0.000 description 1
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- 238000002651 drug therapy Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 230000001954 sterilising effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
- A61M11/007—Syringe-type or piston-type sprayers or atomisers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
- F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0023—Constructional types of microvalves; Details of the cutting-off member with ball-shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
- F16K99/0055—Operating means specially adapted for microvalves actuated by fluids
- F16K99/0057—Operating means specially adapted for microvalves actuated by fluids the fluid being the circulating fluid itself, e.g. check valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
- A61M2039/248—Ball-valve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
- A61M2039/2486—Guided stem, e.g. reciprocating stopper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a split type micro valve which comprises a valve body and a valve element. The split type micro valve is characterized in that the valve body is of a split structure and is composed of a front valve body and a back valve body, the front valve body is provided with a valve body inner cavity, one end of the valve body inner cavity is provided with a liquid outlet, the other end of the valve body inner cavity is provided with an internal thread, one end of the back valve body is provided with a liquid inlet, the other end of the back valve body is provided with an external thread, the internal thread of the front valve body is connected with the external thread of the back valve body in a matched mode, the end, provided with the external thread, of the back valve body forms a valve base, and the valve element is located in the valve body inner cavity of the front valve body and matched with the valve base on the back valve body. According to the split type micro valve, the valve body is creatively changed to be of the split structure, convenient assembling of the micro valve is achieved, the uniformity of products is guaranteed, and requirements of various occasions can be met by changing the front valve body to change the size of the valve body inner cavity.
Description
Technical field
The present invention relates to a kind of fluid control device, be specifically related to a kind of micro-valve knot for controlling micro liquid dosage
Structure.
Background technology
Micro-valve is applicable to the liquid dosage of indivisible (such as with milliliter, microlitre as magnitude).Such as, at atomized medicine introducing device
In, need to be sucked by medicine quantitatively atomized medicine introducing nozzle, according to the difference of use medicine, every time for dose generally at 15 microlitres
～between 2 milliliters, in this kind of atomized medicine introducing device, need to arrange a micro-valve in one end of suction tube, to control supply spraying dress
Put the amount of medicinal liquid.On clinical medicine, the amount of being injected intravenously of some pharmaceutical units time is more important than total consumption, from medicine for power
For the angle learned, dosing interval is the shortest, and blood concentration fluctuation is the least.Vein constant speed gasing injection is most efficient method clinically.
General intravenous anesthesia common drug vein constant speed gasing injection volume flow requirement is as shown in following table one.
Table one: general intravenous anesthesia common drug vein constant speed gasing injection volume flow requirement
When there is no precision syringe, typically after 5% glucose dilution, use intravenous drip, the volume flow one of intravenous drip
As be 2-4mL/min.
If using glass needle tubing to coordinate rustless steel push rod to prepare precision syringe, its processing technique requires height, injected current
Measure affected by environment bigger.Therefore, it is also desirable to be considered as micro-valve and prepare precision syringe.
Existing micro-valve arrangement, is generally made up of valve body, spool, spring and location fastener, and valve body is similar tubular structure,
One end bore is less for inlet, constitutes valve seat inside inlet, and spool is usually valve ball, and valve ball and spring is through the valve body other end
Insert, valve ball and valve seat fitted seal, location fastener and described valve body other end tight fit, and position spring and valve ball.
When requiring valve body overall size to reach below 3mm, because fitting dimension is the least is difficult to injection, every batch is noted
Moulding working of plastics and shrink situation difference, between each batch accessory, fitness is difficult to the reasons such as adjustment, headed by stainless steel and other metal materials becomes
Choosing.And small sized metallic check valve is disposable assembling at present, assembling fittings closely cannot be taken apart and re-use, and breaks down only
Can entirety scrap.In actual production link, every, the check valve assembled need to through leak hunting qualified after just can come into operation, for not
Disassembled check valve, the check valve often assembled defective can only be scrapped through leaking hunting.Using link, because metal material is easy
Corrosion aoxidizes, and for increasing the service life, only uses material and the accessory of higher performance, but understands seepage after a period of time the most unavoidably
Or leakage, once seepage also can only entirety be scrapped.
Further, since conveying liquid thickness or residual liquid easy crystallisation solidification in valve body, the elongated easy blocking of pipeline, so
It is single use, or will repeatedly clean confirmation before and after will using every time, it is ensured that do not become rusty in pipeline stain or liquid
Body remains, and adds matting, all has a negative impact on the costs such as valve member life-span, manpower, time, resource.
Furthermore, micrometeor check valve of the prior art itself has no idea to regulate flow, as regulated flow, it is necessary to
Pipeline additionally installs additional the flow control valve such as choke valve or flow speed control valve or uses the more complicated one-way throttle valve etc. of structure.
For solving the problems referred to above, it is desirable to provide new micro-valve arrangement.
Summary of the invention
The goal of the invention of the present invention is to provide a kind of split and declines valve, is improved by structure, it is achieved in the valve body to micro-valve
The volumetric void fraction in chamber, it is ensured that the concordance of product.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of split declines valve, including valve body, valve
Core, described valve body is Split type structure, is made up of front valve shell and rear valve body, and described front valve shell has a body cavity, described valve body
Inner chamber one end is liquid outlet, and the other end is provided with female thread, and described rear valve body one end is inlet, and the other end is provided with external screw thread, front
The female thread of valve body and the external screw thread of rear valve body are connected, and described rear valve body has end, externally threaded one end and constitutes valve seat,
Spool is positioned in the body cavity of front valve shell, and coordinates with the valve seat on rear valve body.
In technique scheme, front valve shell and rear valve body constituting valve body with threaded, spool is not required to after installing
Fastener to be arranged, is therefore easily installed regulation, reduces requirement on machining accuracy.Spool coordinates realization to seal, at feed flow with valve seat
Time, spool is departed from valve seat by the pressure of inlet end, makes inlet connect with liquid outlet, and when completing feed flow, spool is gone out liquid
The pressure return of mouth end seals.
Further technical scheme, is provided with spring in described body cavity, and described spring one end contacts with described spool, separately
One end contacts with the liquid outlet side chamber wall of described body cavity.The pressure utilizing spring realizes spool return, goes for
Liquid outlet end does not provide the applications of return pressure.
In technique scheme, described spool can be variously-shaped, and such as, described spool is spherical；Or, described valve
Core is cylindrical；Or, one end that described spool contacts with valve seat is hemisphere face, and the other end is cylindrical.
By changing the volume of body cavity, go for different application.
Conceive based on same technology, change front valve shell and the threaded connection relation of rear valve body, another technical side of the present invention
Case is:
A kind of split declines valve, and including valve body, spool, described valve body is Split type structure, is made up of front valve shell and rear valve body, described
Front valve shell one end is liquid outlet, and the other end is provided with external screw thread, and described rear valve body has a body cavity, described body cavity one end
For inlet, the other end is provided with female thread, and the external screw thread of front valve shell and the screw-internal thread fit of rear valve body connect, described rear valve body
The connectivity part of body cavity and inlet constitutes valve seat, and spool is positioned in the body cavity of rear valve body, and with the valve on rear valve body
Seat coordinates.
Further technical scheme, is provided with spring in described body cavity, and described spring one end contacts with described spool, separately
One end and the ends contact of the one end at external screw thread place on front valve shell.
In technique scheme, described spool can be variously-shaped, and such as, spool is spherical；Or, described spool is
Cylindrical；Or, one end that described spool contacts with valve seat is hemisphere face, and the other end is cylindrical.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1, in prior art, the valve body of micro-valve arrangement is all integrally-built, and existing mentality of designing simply considers how location
Spool and spring；Valve body is creatively changed into split-type structural by the present invention, spool is arranged on split front valve shell and after
The junction of valve body, and front valve shell and rear valve body are used threaded, it is thus achieved that the ease of assembly of micro-valve, it is not necessary to
Complicated mould tool.
2, choke valve principle is by changing throttling cross section or chock length to control fluid flow.Valve member of the present invention because of
Interchangeable for interior fittings, therefore can use different cross section size or the spool of different length instead or change other valve member housing accessory
Size or the multiple regulating measure such as size of spring play the effect of similar choke valve.For Flow-rate adjustment infrequently should
Only need removable parts accessory just can meet the requirement of regular period for, reduce redundant configuration.
3, valve member integral outer diameter is minimum up to 1.5mm, even after small-bore pipeline installs check valve of the present invention, and valve
Body region can not also protrude from pipeline, and outside entirety seamlessly transits, and facilitates pipe arrangement, than known product THE LEE COMPANY
Existing check valve or check-valves minimum 2.5mm product are also little.
4, the valve body of the present invention is easily-disassembled, and all accessories all can single-piece be replaced, and finds bad can change accessory in time, with
Time facilitate Adjustment precision to coordinate, it is ensured that overall quality.Reducing material cost, whole product cost reduces, and more utilizes market competing
Strive.
5, product structure is easily-disassembled, it is seen that formula cleaning and sterilizing, reduces use cost, process loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the exploded perspective view of Fig. 1；
Fig. 3 is the cross-sectional schematic of Fig. 2；
Fig. 4 is the structural representation of embodiment two；
Fig. 5 is the structural representation of embodiment three；
Fig. 6 is the schematic diagram of embodiment four；
Fig. 7 is the cross-sectional schematic of Fig. 6；
Fig. 8 is application structure schematic diagram in embodiment five；
Fig. 9 is the close-up schematic view of Fig. 8；
Figure 10 is the structural representation of embodiment six；
Figure 11 is the exploded perspective view of Figure 10；
Figure 12 is the cross-sectional schematic of Figure 11；
Figure 13, Figure 14 are the cross-sectional schematic of other two structure in embodiment six.
Wherein: 1, front valve shell；2, spring；3, spool；4, rear valve body；5, liquid outlet；6, female thread；7, valve seat；8, outer spiral shell
Stricture of vagina；9, inlet；10, body cavity；11, upper case；12, lower case；13, liquid pool；14, spring retainer shell；15, atomization
Outlet；16, sealing member one；17, sealing member two；18, securing member one；19, securing member two；20, connector.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment one: see shown in Fig. 1 to Fig. 3, a kind of split declines valve, including front valve shell 1, rear valve body 4, spool 3 and spring
2, as shown in Figure 3, described front valve shell 1 has a body cavity 10, and described body cavity one end is liquid outlet 5, and the other end sets
Having female thread 6, described rear valve body 4 one end is inlet 9, and the other end is provided with external screw thread 8, the female thread 6 of front valve shell 1 and rear valve body
The external screw thread 8 of 4 is connected, and described rear valve body 4 has end, externally threaded one end and constitutes valve seat 7.
As it is shown in figure 1, be provided with spring 2 and spool 3 in body cavity 10, spring 2 one end contacts with described spool 3, another
End contacts with the liquid outlet side chamber wall of described body cavity, and the spool in the present embodiment is spherical valve ball, valve ball and rear valve body
On valve seat coordinate.
The present embodiment can be used for the internal one-way valves such as analgesia pump, insulin pump, needleless injector, aerosol apparatus, is conducive to contracting
Little structural volume, is used for developing portable Wearable administration device.
When preparing precision syringe, traffic requirement is as shown in following table two.
Table two: precision syringe injection traffic requirement
| Injection total amount | Syringe internal diameter (mm) | Minimum discharge (nl/min) | Maximum stream flow (ml/min) |
| 10μl | 0.485 | 0.184 | 0.027 |
| 25μl | 0.729 | 0.417 | 0.626 |
| 50μl | 1.03 | 0.833 | 0.125 |
| 100μl | 1.457 | 1.667 | 0.250 |
| 250μl | 2.304 | 4.169 | 0.625 |
| 500μl | 3.256 | 8.326 | 1.248 |
The present embodiment micro-valve capillary stainless steel tube, as main body valve pocket, fully achieves the internal diameter chi of precision syringe requirement
Very little, use corresponding valve member coupling instead by different flow requirement and require internal diameter specification, change the outfit on ordinary syringe syringe needle, reach same
Traffic requirement.
Embodiment two, sees shown in accompanying drawing 4, and a kind of split declines valve, including front valve shell 1, rear valve body 4, spool 3 and spring
2, described front valve shell 1 has a body cavity 10, and described body cavity one end is liquid outlet 5, and the other end is provided with female thread 6, institute
Stating rear valve body 4 one end is inlet 9, and the other end is provided with external screw thread 8, and the female thread 6 of front valve shell 1 and the external screw thread 8 of rear valve body 4 are joined
Closing and connect, described rear valve body 4 has end, externally threaded one end and constitutes valve seat 7.Body cavity 10 is provided with spring 2 and spool 3,
In the present embodiment, described spool is cylindrical.
Embodiment three, sees shown in accompanying drawing 5, and a kind of split declines valve, including front valve shell 1, rear valve body 4, spool 3 and spring
2, described front valve shell 1 has a body cavity 10, and described body cavity one end is liquid outlet 5, and the other end is provided with female thread 6, institute
Stating rear valve body 4 one end is inlet 9, and the other end is provided with external screw thread 8, and the female thread 6 of front valve shell 1 and the external screw thread 8 of rear valve body 4 are joined
Closing and connect, described rear valve body 4 has end, externally threaded one end and constitutes valve seat 7.Body cavity 10 is provided with spring 2 and spool 3,
In the present embodiment, one end that described spool contacts with valve seat is hemisphere face, and the other end is cylindrical.
Embodiment four, sees shown in accompanying drawing 6 and accompanying drawing 7, and a kind of split declines valve, by front valve shell 1, rear valve body 4 and spool 3
Constituting, described front valve shell 1 has a body cavity 10, and described body cavity one end is liquid outlet 5, and the other end is provided with female thread 6,
Described rear valve body 4 one end is inlet 9, and the other end is provided with external screw thread 8, the female thread 6 of front valve shell 1 and the external screw thread 8 of rear valve body 4
Being connected, described rear valve body 4 has end, externally threaded one end and constitutes valve seat 7.
In the present embodiment, spool is spherical, is not provided with spring, and body cavity volume is less, and during use, spherical valve core is going out
With valve seat fitted seal under the effect of mouth end pressure.
Embodiment five: a kind of application of micro-valve
When intervention method injects chemotherapeutic drug therapy cancer, it is desirable to multi-point disperse minor is injected, for the asthma of acute attack
People, also requires that the medicine that disposable Neulized inhalation concentration is higher, and with the acute symptom of rapid recovery patient, general propellant is once
Dosage about 15-30 μ l.When compound medicine uses, during the mixing of many of material proportions, require have accurately too
Minimum discharge output controls.For minimizing controlled output (volume) amount, key issue to be solved has two: (1) reduces work
Making area of section, (2) realize micro-displacement.
The microvalve application of the present invention sucks medicinal liquid section flow-control in nebulizer, body cavity 10 internal diameter minimum up to
0.4mm, can effectively reduce working sections area.Under same fluid pressure, spool displacement can pass through spool length, spring pressure
The various ways regulations such as contracting amount and spring stiffness, can accurately meet design requirement.
Seeing shown in accompanying drawing 8 and accompanying drawing 9, nebulizer has upper case 11 and lower case 12, at lower case
Being provided with liquid pool 13, spring and spring retainer shell 14 in 12, valve body 4 is one-body molded with water inlet pipe in this embodiment the rear, and stretches
Entering in liquid pool 13, front valve shell 1 is connected with rear valve body 4 screw thread close-fitting, inserts runner, and runner front end is provided with at atomisation outlet 15
Spacing hole, makes valve component can not deviate from pipeline, is simultaneously provided with sealing member 1, sealing member 2 17 and securing member 1, fastening
Part 2 19, keeps valve body stability in the movement direction.Spacing hole builds fluid channel between atomisation outlet, makes fluid from logical
Cross the aperture of spacing hole 0.4mm to reduce rapidly to the aperture of 0.005mm at atomisation outlet, form bigger hydraulic pressure, reversely promote valve
Core 3 withstands rear valve body 4 fluid intake, closes the outlet of fluid reflux, forces fluid to move to atomisation outlet.Valve body and liquid pool 13
Connected by connector 20, be synchronized with the movement.
State one: original state, micro-valve is connected by connector 20 with liquid pool 13, is positioned at below atomisation outlet 15, peripheral
Spring precommpression, spring top is pressed on connector 20, and spring bottom is fixed by spring retainer shell 14.State two: work
Starting state, connector moves downward, and spring is further compressed, and micro-valve and liquid pool and connector Tong Bu move down, micro-valve
Downward away from spray outlet, spool upwards floats, in liquid injecting tube road.State three: work is carried out to completion status, removes and adds
The power being loaded on connector, spring pressure die-offs, and spring is returned to original state position, connector and liquid pool rapidly upward
Synchronizing to move rapidly upward with micro-valve, the liquid in pipeline is extruded by the micro-valve of steel pipe, after spool is against by liquid extruding simultaneously
At valve body 4 valve seat 7, block to lower water-back.Liquid in pipeline discharges from top atomisation outlet.
| Valve pocket specification (mm) | Spool specification (mm) | Tube chamber specification (mm) | Outlet specification (mm) | Every spray amount (g) |
| φ1.6*2.0 | φ1.5*1.5 | φ1.8*10 | 0.005 | 0.45g |
| φ1.4*1.8 | φ1.3*1.3 | φ1.6*10 | 0.005 | 0.30g |
Embodiment six: see shown in Figure 10 to Figure 12, a kind of split declines valve, and including valve body, spool 3, described valve body is
Split type structure, is made up of front valve shell 1 and rear valve body 4, and described front valve shell 1 one end is liquid outlet 5, and the other end is provided with external screw thread 8, institute
Stating rear valve body 4 and have a body cavity 10, described body cavity 10 one end is inlet 9, and the other end is provided with female thread 6, front valve
The external screw thread 8 of body 1 and the female thread 6 of rear valve body 4 are connected, the body cavity 10 of described rear valve body and the connection of inlet 9
Place constitutes valve seat 7, and spool 3 is positioned in the body cavity 10 of rear valve body, and coordinates with the valve seat 7 on rear valve body.
Being provided with spring 2 in described body cavity 10, described spring 2 one end contacts with described spool 3, the other end and front valve shell
The ends contact of the one end at external screw thread place on 1.
Seeing accompanying drawing 12,13 and 14 respectively, in the present embodiment, described spool can be spherical, cylindrical, or, described
One end that spool contacts with valve seat is hemisphere face, and the other end is cylindrical.
Claims (10)
1. split declines a valve, including valve body, spool, it is characterised in that: described valve body is Split type structure, by front valve shell and after
Valve body is constituted, and described front valve shell has a body cavity, and described body cavity one end is liquid outlet, and the other end is provided with female thread,
Described rear valve body one end is inlet, and the other end is provided with external screw thread, and the female thread of front valve shell and the external screw thread of rear valve body coordinate even
Connect, described rear valve body have end, externally threaded one end constitute valve seat, spool is positioned in the body cavity of front valve shell, and with rear valve
Valve seat on body coordinates.
Split the most according to claim 1 declines valve, it is characterised in that: described body cavity is provided with spring, described bullet
Spring one end contacts with described spool, and the other end contacts with the liquid outlet side chamber wall of described body cavity.
Split the most according to claim 1 declines valve, it is characterised in that: described spool is spherical.
Split the most according to claim 1 declines valve, it is characterised in that: described spool is cylindrical.
Split the most according to claim 1 declines valve, it is characterised in that: one end that described spool contacts with valve seat is hemisphere
Face, the other end is cylindrical.
6. split declines a valve, including valve body, spool, it is characterised in that: described valve body is Split type structure, by front valve shell and after
Valve body is constituted, and described front valve shell one end is liquid outlet, and the other end is provided with external screw thread, and described rear valve body has a body cavity, institute
Stating body cavity one end is inlet, and the other end is provided with female thread, and the external screw thread of front valve shell and the screw-internal thread fit of rear valve body are even
Connecing, the body cavity of described rear valve body constitutes valve seat with the connectivity part of inlet, and spool is positioned in the body cavity of rear valve body, and
Coordinate with the valve seat on rear valve body.
Split the most according to claim 6 declines valve, it is characterised in that: described body cavity is provided with spring, described bullet
Spring one end contacts with described spool, the other end and the ends contact of the one end at external screw thread place on front valve shell.
Split the most according to claim 6 declines valve, it is characterised in that: described spool is spherical.
Split the most according to claim 6 declines valve, it is characterised in that: described spool is cylindrical.
Split the most according to claim 6 declines valve, it is characterised in that: one end that described spool contacts with valve seat is half
Sphere, the other end is cylindrical.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840900.6A CN106310512A (en) | 2016-09-22 | 2016-09-22 | Split type micro valve |
| EP17852252.0A EP3515545A4 (en) | 2016-09-22 | 2017-08-11 | Split micro-valve |
| CA3037979A CA3037979A1 (en) | 2016-09-22 | 2017-08-11 | Split micro-valve |
| PCT/CN2017/097151 WO2018054183A1 (en) | 2016-09-22 | 2017-08-11 | Split micro-valve |
| US16/361,243 US10948106B2 (en) | 2016-09-22 | 2019-03-22 | Split micro-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840900.6A CN106310512A (en) | 2016-09-22 | 2016-09-22 | Split type micro valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106310512A true CN106310512A (en) | 2017-01-11 |
Family
ID=57820060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610840900.6A Pending CN106310512A (en) | 2016-09-22 | 2016-09-22 | Split type micro valve |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3515545A4 (en) |
| CN (1) | CN106310512A (en) |
| CA (1) | CA3037979A1 (en) |
| WO (1) | WO2018054183A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013687A (en) * | 2017-05-12 | 2017-08-04 | 莫中振 | Bolus injection adjustable valve |
| WO2018054183A1 (en) * | 2016-09-22 | 2018-03-29 | Suzhou Skywell Healthcare Information Co., Ltd. | Split micro-valve |
| US10948106B2 (en) | 2016-09-22 | 2021-03-16 | Suzhou Skywell Healthcare Information Co, Ltd | Split micro-valve |
| CN115957398A (en) * | 2022-12-19 | 2023-04-14 | 江苏迈硕医疗科技有限公司 | Portable insulin syringe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190619931A (en) * | 1906-09-07 | 1907-06-06 | Jean Nepomucene Hochgesand | Improvements in Spring Controlled Valves |
| US20060212024A1 (en) * | 2005-03-17 | 2006-09-21 | William Dwyer | Universal valve for foley type urinary catheter |
| US20110147016A1 (en) * | 2009-12-17 | 2011-06-23 | Victaulic Company | Fluid Selective Check Valve |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN203379482U (en) * | 2013-07-29 | 2014-01-08 | 深圳市沃尔德外科医疗器械技术有限公司 | Hydrocephalus flow divider valve |
| CN203963153U (en) * | 2014-06-22 | 2014-11-26 | 龚永青 | Relief valve |
| CN206492109U (en) * | 2016-09-22 | 2017-09-15 | 苏州天健云康信息科技有限公司 | A kind of split type micro-valve |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525799A (en) * | 1947-11-04 | 1950-10-17 | Marvin S Hecker | Oxygen check valve |
| US2994340A (en) * | 1958-05-14 | 1961-08-01 | Sealol Corp | Check valve |
| US4172465A (en) * | 1977-11-07 | 1979-10-30 | Conbraco Industries, Inc. | Check valve |
| GB1561514A (en) * | 1978-05-04 | 1980-02-20 | Butcher Bros Ltd | Hose check valve |
| JP3928248B2 (en) * | 1998-02-27 | 2007-06-13 | ニプロ株式会社 | Chemical liquid self-injection tool |
| DE10335379B9 (en) * | 2003-07-28 | 2005-03-24 | Alfred Kärcher Gmbh & Co. Kg | backflow preventer |
| US7806142B2 (en) * | 2007-06-27 | 2010-10-05 | Teleflex Canada Inc. | Combined relief valve and check valve |
| JP2009138888A (en) * | 2007-12-10 | 2009-06-25 | Miura Co Ltd | Check valve |
| US8955769B2 (en) * | 2011-12-02 | 2015-02-17 | Gojo Industries, Inc. | Vortex atomizing foam pump and refill unit utilizing same |
| CN102670412B (en) * | 2012-05-15 | 2015-04-01 | 三峡大学第一临床医学院 | Trace liquid replenishing device |
| CN103211601B (en) * | 2013-04-09 | 2014-12-10 | 苏州市玮琪生物科技有限公司 | Blood taking needle |
| DE202015104202U1 (en) * | 2015-08-11 | 2015-08-19 | Herbal Spirit Co., Ltd. | The construction of the connector |
| CN106310512A (en) * | 2016-09-22 | 2017-01-11 | 苏州天健云康信息科技有限公司 | Split type micro valve |
-
2016
- 2016-09-22 CN CN201610840900.6A patent/CN106310512A/en active Pending
-
2017
- 2017-08-11 WO PCT/CN2017/097151 patent/WO2018054183A1/en unknown
- 2017-08-11 EP EP17852252.0A patent/EP3515545A4/en not_active Withdrawn
- 2017-08-11 CA CA3037979A patent/CA3037979A1/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190619931A (en) * | 1906-09-07 | 1907-06-06 | Jean Nepomucene Hochgesand | Improvements in Spring Controlled Valves |
| US20060212024A1 (en) * | 2005-03-17 | 2006-09-21 | William Dwyer | Universal valve for foley type urinary catheter |
| US20110147016A1 (en) * | 2009-12-17 | 2011-06-23 | Victaulic Company | Fluid Selective Check Valve |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN203379482U (en) * | 2013-07-29 | 2014-01-08 | 深圳市沃尔德外科医疗器械技术有限公司 | Hydrocephalus flow divider valve |
| CN203963153U (en) * | 2014-06-22 | 2014-11-26 | 龚永青 | Relief valve |
| CN206492109U (en) * | 2016-09-22 | 2017-09-15 | 苏州天健云康信息科技有限公司 | A kind of split type micro-valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018054183A1 (en) * | 2016-09-22 | 2018-03-29 | Suzhou Skywell Healthcare Information Co., Ltd. | Split micro-valve |
| US10948106B2 (en) | 2016-09-22 | 2021-03-16 | Suzhou Skywell Healthcare Information Co, Ltd | Split micro-valve |
| CN107013687A (en) * | 2017-05-12 | 2017-08-04 | 莫中振 | Bolus injection adjustable valve |
| CN115957398A (en) * | 2022-12-19 | 2023-04-14 | 江苏迈硕医疗科技有限公司 | Portable insulin syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018054183A1 (en) | 2018-03-29 |
| EP3515545A4 (en) | 2020-04-29 |
| EP3515545A1 (en) | 2019-07-31 |
| CA3037979A1 (en) | 2018-03-29 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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