CN110201298A - Check valve and infusion device - Google Patents
Check valve and infusion device Download PDFInfo
- Publication number
- CN110201298A CN110201298A CN201910598421.1A CN201910598421A CN110201298A CN 110201298 A CN110201298 A CN 110201298A CN 201910598421 A CN201910598421 A CN 201910598421A CN 110201298 A CN110201298 A CN 110201298A
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- Prior art keywords
- shell
- liquid
- groove
- check valve
- sealing element
- Prior art date
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- Pending
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 173
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 230000010412 perfusion Effects 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 230000009466 transformation Effects 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
- A61M39/24—Check- or non-return 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
- 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
-
- 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
- A61M2039/242—Check- or non-return valves designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention discloses a kind of check valve and infusion device, wherein check valve includes first shell, and the first shell was equipped with liquid channel；Second shell, the second shell is connected to the first shell, the second shell is recessed with liquid chamber away from the surface of the first shell, the second shell is equipped with towards the surface of the first shell is connected to first mounting groove for crossing liquid channel, and the second shell is equipped with the liquid pass hole for being connected to the groove bottom wall of first mounting groove in the bottom of chamber wall periphery of the liquid chamber；And sealing element, the sealing element is set between the first shell and the second shell, and is at least partly embedded in first mounting groove, to open or close the liquid pass hole, the liquid channel of crossing is made to be connected or block with the liquid chamber.Technical solution of the present invention generates bubble when avoiding liquid conveying, improves the quality of liquid.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to the infusion of a kind of check valve and the application check valve fills
It sets.
Background technique
Clinically when treating or draining to patient fluid infusion, there is a situation where liquid refluxes in order to prevent, thus will be unidirectional
Valve is widely used in above the medical instruments such as syringe, trachea cannula, catheter.Currently, gasket type check valve in the market is logical
It is equipped with gasket in road, passes through the liquid of the gasket backstop adverse current.However, being found during using gasket type check valve, pad
After piece is activated, swiftly flowing liquid crosses liquid from the surrounding of gasket, then converges into the liquid outlet channel of check valve.So make
The larger stability for changing to influence liquid conveying occurs for the flow path for obtaining liquid, causes liquid to generate bubble, influences liquid
The quality of body.
Summary of the invention
The main object of the present invention is to provide a kind of check valve, it is intended to generate bubble when liquid being avoided to convey, improve liquid
Quality.
To achieve the above object, check valve proposed by the present invention includes:
First shell, the first shell were equipped with liquid channel；
Second shell, the second shell are connected to the first shell, and the second shell deviates from the first shell
Surface be recessed with liquid chamber, the second shell, which is equipped with to be connected to towards the surface of the first shell, described crosses the of liquid channel
One mounting groove, the second shell are equipped with the groove bottom wall for being connected to first mounting groove in the bottom of chamber wall periphery of the liquid chamber
Liquid pass hole；And
Sealing element, the sealing element is set between the first shell and the second shell, and is at least partly embedded at
In first mounting groove, to open or close the liquid pass hole, the liquid channel of crossing is made to be connected or hinder with the liquid chamber
It is disconnected.
In one embodiment of this invention, the liquid pass hole is circle.
In one embodiment of this invention, the liquid pass hole is equipped with multiple, and multiple liquid pass holes are along the liquid chamber
The periphery of bottom of chamber wall is spaced apart.
In one embodiment of this invention, there are three the liquid pass hole is set, three liquid pass holes are along the liquid chamber
The periphery of bottom of chamber wall is uniformly distributed.
In one embodiment of this invention, the sealing element, which is equipped with, is connected to the through-hole for crossing liquid channel, the through-hole
The sealing element of surrounding is embedded in first mounting groove, and the area of the liquid pass hole is greater than the area of the through-hole.
In one embodiment of this invention, surface of the sealing element towards the first installation groove bottom wall is recessed equipped with first
The bottom wall of slot, first groove is equipped with the through-hole, and the bottom wall of first mounting groove is convexly equipped with compression leg, and the compression leg deviates from
The end of the first installation groove bottom wall is inserted in first groove.
In one embodiment of this invention, periphery ring of the compression leg away from the end face of the first installation groove bottom wall is equipped with
Convex ribs, the groove bottom wall of first groove are recessed with the second groove, week of second groove along the first groove groove bottom wall
Edge is embedded in second groove around setting, the convex ribs.
In one embodiment of this invention, the second shell away from the first shell one end be equipped with for infusion
The connection structure that pipe is attached.
In one embodiment of this invention, the connection structure is set to one that the second shell deviates from the first shell
Lateral wall is held, the connection structure is external screw thread.
The present invention also proposes that a kind of infusion device, including check valve, the check valve include:
First shell, the first shell were equipped with liquid channel；
Second shell, the second shell are connected to the first shell, and the second shell deviates from the first shell
Surface be recessed with liquid chamber, the second shell, which is equipped with to be connected to towards the surface of the first shell, described crosses the of liquid channel
One mounting groove, the second shell are equipped with the groove bottom wall for being connected to first mounting groove in the bottom of chamber wall periphery of the liquid chamber
Liquid pass hole；And
Sealing element, the sealing element is set between the first shell and the second shell, and is at least partly embedded at
In first mounting groove, to open or close the liquid pass hole, the liquid channel of crossing is made to be connected or hinder with the liquid chamber
It is disconnected；
The infusion device further include:
First perfusion tube is connected to the side of the check valve and communicates therewith；With
Second perfusion tube is connected to the other side of the check valve and communicates therewith.
Technical solution of the present invention imports liquid by the opening of the liquid chamber of second shell, and liquid enters by liquid pass hole
In first mounting groove, is blocked and assemble by sealing element in the first mounting groove.A level pressure is generated to the liquid in the first mounting groove
After power, driving sealing element, deformation occurs and opens liquid pass hole, and the first mounting groove is made to be connected to the liquid channel excessively of first shell, thus
So that the overnight intracavitary liquid of second shell is able to enter in the liquid channel excessively of first shell.When liquid is from first shell
When crossing one end importing of the liquid channel far from second shell, sealing element is driven to be connected to the first peace after entering in the first mounting groove
The groove bottom wall of tankage and block liquid pass hole so that the liquid of first shell crossed in liquid channel cannot be introduced into the mistake of second shell
In sap cavity.In this way, liquid can only be out of, overnight intracavitary liquid channel excessively for entering first shell of the second shell, to realize
The one-way flow of liquid.Also, it is lesser along changing since the liquid in this programme is after aggregation certain pressure starting sealing element
Circulation path entered in liquid channel, and the change dramatically that liquid is flowed to when passing through sealing element has been effectively relieved, ensure that liquid
The stability of body conveying improves the quality of liquid to avoid generating bubble.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the overall structure diagram of one embodiment of check valve of the present invention；
Fig. 2 is the configuration schematic diagram of check valve in Fig. 1.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | First shell | 250 | Convex ribs |
| 110 | Cross liquid channel | 260 | Connection structure |
| 120 | Second mounting groove | 300 | Sealing element |
| 200 | Second shell | 310 | Seal body |
| 210 | Liquid chamber | 320 | Closure part |
| 220 | First mounting groove | 321 | Through-hole |
| 230 | Liquid pass hole | 322 | First groove |
| 240 | Compression leg | 323 | Second groove |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention proposes a kind of check valve.
Referring to FIG. 1, in an embodiment of the present invention, the check valve include first shell 100, second shell 200 and
Sealing element 300；Wherein, first shell 100 was equipped with liquid channel 110；The second shell 200 is connected to the first shell
100, second shell 200 is recessed with liquid chamber 210 away from the surface of first shell 100, and second shell 200 is towards the first shell
The surface of body 100 is equipped with the first mounting groove 220 for being connected to liquid channel 110, and second shell 200 is in the bottom of chamber wall of liquid chamber 210
Periphery is equipped with the liquid pass hole 230 for being connected to the groove bottom wall of the first mounting groove 220；Sealing element 300 is set to first shell 100 and second
It between shell 200, and is at least partly embedded in the first mounting groove 220, to open or close liquid pass hole 230, made liquid channel
110 are connected or block with liquid chamber 210.
In the present embodiment, referring to FIG. 2, sealing element 300 is including annular seal body 310 and by sealing element sheet
The closure part 320 that the periphery on surface of the body 310 towards the first mounting groove 220 extends internally, seal body 310 are set to first shell
Between body 100 and second shell 200, closure part 320 is embedded in the first mounting groove 220 and blocks liquid pass hole 230, in this way, working as
Liquid is after aggregation generates certain pressure in the first mounting groove 220, slot bottom of the closure part 320 to separate first mounting groove 220
Deformation occurs in the direction of wall, to open liquid pass hole 230.Further, first seal 300 uses silica gel part, so makes
Obtaining sealing element 300 has certain elasticity, and is easy to happen after liquid generates certain pressure in aggregation in the first mounting groove 220
Deformation, convenient for the starting of sealing element 300.Certainly, in other embodiments, sealing element 300 is also possible using rubber parts.For
The stability of the installation of sealing element 300 is improved, first shell 100 in the surface towards second shell 200 is recessed with the second peace
Tankage 120, crosses the groove bottom wall that liquid channel 110 is connected to the second mounting groove 120, and the seal body 310 of sealing element 300 is embedded at
In second mounting groove 120, so that the groove sidewall of the second mounting groove 120 has position-limiting action to the circumferential direction of sealing element 300.
Technical solution of the present invention imports liquid by the opening of the liquid chamber 210 of second shell 200, and liquid passed through liquid
Hole 230 enters in the first mounting groove 220, is blocked and assembles by sealing element 300 in the first mounting groove 220.To the first mounting groove
After liquid in 220 generates certain pressure, driving sealing element 300, deformation occurs and opens liquid pass hole 230, makes the first mounting groove
220 are connected to the liquid channel 110 excessively of first shell 100, so that the liquid intracavitary overnight of second shell 200 is able to enter
To crossing in liquid channel 110 for first shell 100.When liquid crosses liquid channel 110 far from second shell 200 from first shell 100
One end import when, drive sealing element 300 to be connected to the slot bottom of the first mounting groove 220 after entering in the first mounting groove 220
Wall and block liquid pass hole 230 so that first shell 100 cross liquid channel 110 in liquid cannot be introduced into second shell 200
In liquid chamber 210.In this way, liquid can only be from the overnight intracavitary liquid channel excessively for entering first shell 100 of second shell 200
In 110, to realize the one-way flow of liquid.Also, since the liquid in this programme is in aggregation certain pressure starting sealing
It after part 300, was entered in liquid channel 110 along lesser circulation path is changed, liquid has been effectively relieved by sealing element 300
The change dramatically of Shi Liuxiang, ensure that the stability of liquid conveying, to avoid generating bubble, improve the quality of liquid.
In one embodiment of this invention, liquid pass hole 230 is circle.
It is appreciated that frictional resistance of the hole wall to liquid for reducing liquid pass hole 230 is arranged such, so that it is defeated to reduce liquid
The pressure loss of journey is passed through, the stability of liquid conveying is improved, to avoid the generation of bubble.Meanwhile liquid pass hole 230 being arranged
For circle, but also the molding easy to process of liquid pass hole 230, to reduce the manufacturing cost of check valve.
In one embodiment of this invention, liquid pass hole 230 is equipped with multiple, chamber of multiple institute's liquid pass holes 230 along liquid chamber 210
The periphery of bottom wall is spaced apart.
It is appreciated that liquid pass hole 230 is set as multiple, certain pressure is rapidly achieved in the first mounting groove 220 convenient for liquid
Power makes sealing element 300 deformation occurs to drive, to improve the transfer efficiency of liquid.
In one embodiment of this invention, there are three liquid pass hole 230 is set, three liquid pass holes 230 are along the bottom of chamber of liquid chamber 210
The periphery of wall is uniformly distributed.
It is appreciated that liquid pass hole 230 is set as three, the transfer efficiency of liquid ensure that；Meanwhile also ensuring second shell
Body 200 has certain intensity.And three liquid pass holes 230 are uniformly distributed so that periphery uniform force, raising when check valve crosses liquid
Cross the stability of liquid.
Referring to FIG. 1, in one embodiment of this invention, sealing element 300 is equipped with the through-hole for being connected to liquid channel 110
321, the sealing element 300 of 321 surrounding of through-hole is embedded in the first mounting groove 220, and the area of liquid pass hole 230 is greater than through-hole 321
Area.
It is appreciated that there are pressure loss during conveying for liquid, therefore, the area of liquid pass hole 230 is greater than through-hole
321 area enables the liquid being gathered in the first mounting groove 220 comparatively fast to reach certain pressure, to drive sealing element
300 deformation occurs be connected liquid chamber 210 and cross liquid channel 110, improve the transfer efficiency of liquid.Further, through-hole 321 is set
In the centre of the closure part of sealing element 300 320, and the centerline collineation with liquid channel 110 excessively, so that liquid can be from this
Through-hole 321 entered in liquid channel 110 along straight line, avoided colliding with the inner wall for crossing liquid channel 110, to improve liquid
Stability, avoid generate bubble.It should be noted that when liquid pass hole 230 is provided with one, the area of liquid pass hole 230 is
For the area of the liquid pass hole 230；When liquid pass hole 230 is equipped with two or more, the area of liquid pass hole 230 is for two or more
The sum of the area of a liquid pass hole 230.
Incorporated by reference to reference Fig. 1 and Fig. 2, in one embodiment of this invention, sealing element 300 is towards 220 bottom of the first mounting groove
The surface of wall is equipped with the first groove 322, and the bottom wall of the first groove 322 is equipped with through-hole 321, the bottom wall projection of the first mounting groove 220
There is compression leg 240, compression leg 240 is inserted in the first groove 322 away from the end of 220 bottom wall of the first mounting groove.
It is appreciated that the cooperation of compression leg 240 and the first groove 322 so that sealing element 300 be installed on first shell 100 and
It is abutted more closely after between second shell 200 with second shell 200, to improve the sealing effect of sealing element 300.Such as
This, ensure that liquid in reach certain pressure in the first mounting groove 220 it is rear can just drive sealing element 300 deformation occurs, into
And it was directed into liquid channel 110 by through-hole 321.And work as liquid from liquid channel 110 is crossed away from one end of second shell 200 hair
When life flows back and enters in the second mounting groove 120, withdrawing fluid squeeze sealing member 300 drives sealing element 300 to push against in compression leg
240, it is directed into liquid chamber 210 so as to avoid withdrawing fluid.
In one embodiment of this invention, periphery ring of the compression leg 240 away from the end face of 220 bottom wall of the first mounting groove is set
There are convex ribs 250, the groove bottom wall of the first groove 322 is recessed with the second groove 323, and the second groove 323 is along 322 groove bottom wall of the first groove
Periphery ring around setting, convex ribs 250 are embedded in the second groove 323.
Specifically, the surface loop of groove bottom wall of the compression leg 240 towards the first groove 322 is equipped with a circle convex edge, forms convex ribs
250, so set, further increasing the sealing effect of sealing element 300.Certainly, in other embodiments, it is also possible to press
The surface spacer ring of groove bottom wall of the column 240 towards the first groove 322 is equipped with multistage convex edge, to reduce the use of production material.
In one embodiment of this invention, second shell 200 is equipped with away from one end of first shell 100 and is used for and perfusion tube
The connection structure 260 being attached.
It is appreciated that so set, manufacturing check valve independently with perfusion tube, convenient for the machine-shaping of the two.
Further, check valve can be removably attachable to perfusion tube by connection structure 260, in this way, the disassembly convenient for the later period is tieed up
It repairs, avoids check valve and perfusion tube because of a certain local damage and need replacing entirety, reduce maintenance replacement cost.
Referring to FIG. 2, in one embodiment of this invention, connection structure 260 is set to second shell 200 and deviates from first shell
100 one end lateral wall, connection structure 260 are external screw thread.
It is appreciated that thread connecting mode installation is simple, effect is reliable, to improve the peace of check valve and perfusion tube early period
Efficiency and the removal efficiency in later period are filled, while also ensuring installation effect between the two.Certainly, the application is without being limited thereto,
In other embodiments, connection structure 260 is also possible to be set to second shell 200 away from the fixture block of one end of first shell 100
Perhaps one of card slot perfusion tube is equipped with the wherein another of fixture block or card slot, when 200 He of second shell of check valve
When perfusion tube connects, fixture block is caught in card slot, and the second shell 200 of check valve is made to be connected with perfusion tube.
The present invention also proposes a kind of infusion device, which includes the first perfusion tube, the second perfusion tube and unidirectional
Valve, the specific structure of the check valve is referring to above-described embodiment, since this infusion device uses the whole of above-mentioned all embodiments
Technical solution, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, no longer go to live in the household of one's in-laws on getting married one by one herein
It states.Wherein, the first perfusion tube is connected to first shell 100, and is connected to liquid channel 110 is crossed；Second perfusion tube is connected to second
Shell 200, and be connected to liquid chamber 210.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of check valve characterized by comprising
First shell, the first shell were equipped with liquid channel；
Second shell, the second shell are connected to the first shell, and the second shell deviates from the table of the first shell
Face is recessed with liquid chamber, and the second shell is equipped with towards the surface of the first shell is connected to first peace for crossing liquid channel
Tankage, the second shell are equipped with the mistake for being connected to the groove bottom wall of first mounting groove in the bottom of chamber wall periphery of the liquid chamber
Fluid apertures；And
Sealing element, the sealing element are set between the first shell and the second shell, and are at least partly embedded at described
In first mounting groove, to open or close the liquid pass hole, the liquid channel of crossing is made to be connected or block with the liquid chamber.
2. check valve as described in claim 1, which is characterized in that the liquid pass hole is circle.
3. check valve as described in claim 1, which is characterized in that the liquid pass hole is equipped with multiple, multiple liquid pass hole edges
The periphery of the bottom of chamber wall of the liquid chamber is spaced apart.
4. check valve as claimed in claim 3, which is characterized in that there are three the liquid pass hole is set, three liquid pass hole edges
The periphery of the bottom of chamber wall of the liquid chamber is uniformly distributed.
5. the check valve as described in any one of Claims 1-4, which is characterized in that the sealing element is equipped with and is connected to institute
The through-hole in liquid channel was stated, the sealing element of the through-hole surrounding is embedded in first mounting groove, the area of the liquid pass hole
Greater than the area of the through-hole.
6. check valve as claimed in claim 5, which is characterized in that table of the sealing element towards the first installation groove bottom wall
Face is equipped with the first groove, and the bottom wall of first groove is equipped with the through-hole, and the bottom wall of first mounting groove is convexly equipped with compression leg,
The compression leg is inserted in first groove away from the end of the first installation groove bottom wall.
7. check valve as claimed in claim 6, which is characterized in that the compression leg is away from the end face of the first installation groove bottom wall
Periphery ring be equipped with convex ribs, the groove bottom wall of first groove is recessed with the second groove, and second groove is recessed along described first
Around setting, the convex ribs are embedded in second groove periphery ring of slot groove bottom wall.
8. the check valve as described in any one of Claims 1-4, which is characterized in that the second shell is away from described the
One end of one shell is equipped with the connection structure for being attached with perfusion tube.
9. check valve as claimed in claim 8, which is characterized in that the connection structure is set to the second shell away from described
One end lateral wall of first shell, the connection structure are external screw thread.
10. a kind of infusion device, which is characterized in that described defeated including the check valve as described in any one of claim 1 to 9
Liquid device further include:
First perfusion tube is connected to the first shell, and is connected to the liquid channel of crossing；With
Second perfusion tube is connected to the second shell, and is connected to the liquid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598421.1A CN110201298A (en) | 2019-07-03 | 2019-07-03 | Check valve and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598421.1A CN110201298A (en) | 2019-07-03 | 2019-07-03 | Check valve and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110201298A true CN110201298A (en) | 2019-09-06 |
Family
ID=67796124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910598421.1A Pending CN110201298A (en) | 2019-07-03 | 2019-07-03 | Check valve and infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110201298A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204337406U (en) * | 2014-12-12 | 2015-05-20 | 杭州富善医疗器械有限公司 | A kind of anti-reverse streaming no-needle transfusion joint |
| CN104797869A (en) * | 2012-11-22 | 2015-07-22 | 维森楚私人有限公司 | One way valve |
| CN105597229A (en) * | 2015-12-23 | 2016-05-25 | 吉林大学 | Check valve for infusion |
| CN211327768U (en) * | 2019-07-03 | 2020-08-25 | 深圳安特医疗股份有限公司 | One-way valve and infusion device |
-
2019
- 2019-07-03 CN CN201910598421.1A patent/CN110201298A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797869A (en) * | 2012-11-22 | 2015-07-22 | 维森楚私人有限公司 | One way valve |
| CN204337406U (en) * | 2014-12-12 | 2015-05-20 | 杭州富善医疗器械有限公司 | A kind of anti-reverse streaming no-needle transfusion joint |
| CN105597229A (en) * | 2015-12-23 | 2016-05-25 | 吉林大学 | Check valve for infusion |
| CN211327768U (en) * | 2019-07-03 | 2020-08-25 | 深圳安特医疗股份有限公司 | One-way valve and infusion device |
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