CN209204303U - A kind of one-way valve for infusion - Google Patents
A kind of one-way valve for infusion Download PDFInfo
- Publication number
- CN209204303U CN209204303U CN201822137938.4U CN201822137938U CN209204303U CN 209204303 U CN209204303 U CN 209204303U CN 201822137938 U CN201822137938 U CN 201822137938U CN 209204303 U CN209204303 U CN 209204303U
- Authority
- CN
- China
- Prior art keywords
- block portion
- infusion
- tube body
- aperture
- way valve
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to the field of medical instrument technology, in particular a kind of one-way valve for infusion, including hard tube body and block portion, the both ends of the hard tube body are sealedly connected with dismountable perfusion tube, the block portion is arranged in stereoplasm tube body, and there is an aperture I in its center, what the side periphery in the block portion was close to is provided with water-permeable elastic membrane, has one and the matched closing of aperture I protrusion in elastic membrane center.The utility model is matched using poroelasticity film with circular ring plate, and infusion, blood transfusion backflow phenomenon can be effectively avoided, and component is less and simplifies, easy to manufacture, manufacturing cost is low, is greatly reduced the probability of blocking, failure, is conveniently replaceable.
Description
Technical field
The utility model relates to the field of medical instrument technology, specially a kind of one-way valve for infusion.
Background technique
Infusion, blood transfusion are an important and common methods in hospital clinical treatment.Currently used method: liquid is not through
Luxuriant and rich with fragrance Shi Shi dropper, perfusion tube, syringe needle, afferent veins blood vessel.It is under normal circumstances not in blood return phenomenon, but sometimes necessary defeated
Blood pressure measurement is carried out simultaneously on liquid limbs, when sphygmomanometer girding is tied up above infusion；Liquid person is when holding bottle and going to toilet；Liquid is finished
When, syringe needle is pulled up not in time, at this moment just will appear blood return phenomenon, and less serious case causes stress to patient, and blood back forms thrombus, resistance
Fill in perfusion tube.Severe one, into the circulatory system, causes serious medical accident if thrombus breaks loose.It is anti-return in the prior art, anti-
Refluence transfusion system structure is generally all more complicated, and component is more, and not only production cost is higher, is also easy to break down, and replacement is not
Just.
Utility model content
The purpose of this utility model is to provide a kind of one-way valves for infusion, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of one-way valve for infusion, including hard tube body and block portion, the both ends of the hard tube body, which seal, to be connected
It is connected to dismountable perfusion tube, the block portion is arranged in stereoplasm tube body, and there is an aperture I in its center, in the block portion
What one side periphery was close to is provided with water-permeable elastic membrane, has one and the matched closing of aperture I protrusion in elastic membrane center.
Further, the both ends of the hard tube body are equipped with connector, which is connected to perfusion tube.
Further, the elastic membrane is poroelasticity film, there is row's aperture II around the poroelasticity film.
Further, the hard tube body is made of rigid plastics, and the block portion is circular ring plate made of plastics.
Compared with prior art, the utility model has the beneficial effects that
It is matched using poroelasticity film with circular ring plate, infusion, blood transfusion backflow phenomenon, and component can be effectively avoided
It is less and simplify, it is easy to manufacture, manufacturing cost is low, the probability of blocking, failure is greatly reduced, is conveniently replaceable.
Detailed description of the invention
Fig. 1 is that the utility model closing protrusion opens schematic diagram.
Fig. 2 is that the utility model closing protrusion closes schematic diagram.
In figure: 1- hard tube body, 2- perfusion tube, 3- connector, 4- block portion, 5- elastic membrane, 6- aperture I, 7- closing protrusion,
Gap under 8- aperture II, 9- film.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " up/down end ", "inner", "outside" " front end ", " after
The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition,
Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " be arranged/be arranged with ", " socket ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also
To be to be detachably connected, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also
Indirectly connected through an intermediary, can be the connection inside two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The utility model provides a kind of technical solution referring to FIG. 1-2:
A kind of one-way valve for infusion, including hard tube body 1 and block portion 4, the both ends of the hard tube body 1 are close
Envelope is connected with dismountable perfusion tube 2, and the block portion 4 is arranged in hard tube body 1, and there is an aperture I 6 in its center, at this
What one side periphery in block portion 4 was close to is provided with water-permeable elastic membrane 5, has one to match with aperture I 6 in the elastic membrane 5 center
Closing protrusion 7.
The both ends of the hard tube body 1 are equipped with connector 3, which is sealably coupled to perfusion tube 2, occur block portion 4,
When the damage of elastic membrane 5 blocking or perfusion tube 2 rupture, it can safeguard or quick-replaceable.
The elastic membrane 5 is poroelasticity film, there is row's aperture II 8 around the poroelasticity film.
The hard tube body 1 is made of rigid plastics, and when squeezing, hard tube body 1 can protect the gear in it
It will not be damaged every portion 4, elastic membrane 5, the block portion 4 is circular ring plate made of plastics.
The one-way valve of the utility model is made of hard tube body 1, circular ring plate, poroelasticity film etc., poroelasticity film week
The circular ring plate periphery of plastics is close on side, and gap is gap 9 under film therebetween；There are an aperture I 6, porous bullet in the circular ring plate center of plastics
Property film center have one and the matched closing of aperture I 6 protrusion 7 (hemispherical or arcuation raised), around have row's aperture II 8.
As shown in fig. 1, liquid is conveyed along the direction A, 4 left side of block portion, and liquid pressure is P1 before remembering check valve；Block
On the right of portion 4, liquid pressure is P2 after check valve.
As P1≤P2, poroelasticity film (22) is shunk, and so that closing protrusion 7 is tightly attached to aperture I 6, and be in check valve
Air-tight state.As P1 > P2, poroelasticity film stretching makes closing protrusion 7 leave aperture I 6, and liquid is along aperture before check valve
I 6, gap 9, aperture II 8 flow to liquid after check valve under film.
The utility model is matched using poroelasticity film with circular ring plate, and infusion, blood transfusion reflux can be effectively avoided now
As, and component is less and simplifies, it is easy to manufacture, manufacturing cost is low, the probability of blocking, failure is greatly reduced, convenient for more
It changes.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of one-way valve for infusion, including hard tube body (1) and block portion (4), it is characterised in that: the stereoplasm tube
The both ends of body (1) are sealedly connected with dismountable perfusion tube (2), and block portion (4) setting is interior in hard tube body (1), and its
There is an aperture I (6) in center, and what the side periphery in the block portion (4) was close to is provided with water-permeable elastic membrane (5), in the bullet
Property film (5) hit exactly and have one and aperture I (6) matched closing protrusion (7).
2. a kind of one-way valve for infusion according to claim 1, it is characterised in that: the hard tube body (1)
Both ends are equipped with connector (3), which is sealably coupled to perfusion tube (2).
3. a kind of one-way valve for infusion according to claim 1, it is characterised in that: the elastic membrane (5) is more
Hole elastic membrane has row's aperture II (8) around the poroelasticity film.
4. a kind of one-way valve for infusion described in any one of -3 according to claim 1, it is characterised in that: described hard
Matter tube body (1) is made of rigid plastics, and the block portion (4) is circular ring plate made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822137938.4U CN209204303U (en) | 2018-12-19 | 2018-12-19 | A kind of one-way valve for infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822137938.4U CN209204303U (en) | 2018-12-19 | 2018-12-19 | A kind of one-way valve for infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209204303U true CN209204303U (en) | 2019-08-06 |
Family
ID=67465203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822137938.4U Expired - Fee Related CN209204303U (en) | 2018-12-19 | 2018-12-19 | A kind of one-way valve for infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209204303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388894A (en) * | 2020-03-03 | 2020-07-10 | 杨明亮 | Infectious disease patient respiratory discharge pathogen collecting, inactivating and auxiliary breathing equipment |
-
2018
- 2018-12-19 CN CN201822137938.4U patent/CN209204303U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388894A (en) * | 2020-03-03 | 2020-07-10 | 杨明亮 | Infectious disease patient respiratory discharge pathogen collecting, inactivating and auxiliary breathing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |