CN205729881U - A kind of needleless zero-pressure infusion connector - Google Patents
A kind of needleless zero-pressure infusion connector Download PDFInfo
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- CN205729881U CN205729881U CN201620310287.2U CN201620310287U CN205729881U CN 205729881 U CN205729881 U CN 205729881U CN 201620310287 U CN201620310287 U CN 201620310287U CN 205729881 U CN205729881 U CN 205729881U
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- upper cover
- die cavity
- lower cover
- check valve
- silica gel
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Abstract
The utility model discloses a kind of needleless zero-pressure infusion connector, include upper cover, silica gel valve, check valve and lower cover, be provided with upper cover die cavity in described upper cover, be provided with lower cover die cavity in described lower cover, described upper cover is connected by ultrasonic bonding with lower cover；Described silica gel valve is placed in upper cover die cavity, and with the surface interference fit of upper cover；The junction of upper cover die cavity and lower cover die cavity is located at by described check valve, and the outline of described check valve is suitable with the outline of lower cover die cavity, and described silica gel valve and check valve are silica gel material.The needleless zero-pressure infusion connector of the present utility model effect by check valve, blood backflow when effectively preventing infusion treatment, it is to avoid unexpected blood back phenomenon occurs, and cost performance is high.
Description
Technical field
This utility model relates to a kind of medical and hygiene article, special infusion connector.
Background technology
The most disposable sterilized no-needle transfusion joint mainly has two kinds, one is positive pressure connector, one is negative pressure joint, and positive pressure connector, with malleation effect, can carry the function producing an anti-return blood of positive pressure when having infused, but the market price is more expensive, when common transfusion is treated, people are generally selected the negative pressure joint that price is relatively cheap, but negative pressure joint is without malleation effect, when transfusion completes, it may occur that blood back phenomenon.Blood back once occurs, the most then can frighten patient, cause worry and the uneasiness of patient, heavy then infusion tube can be caused due to air embolism cannot to continue transfusion.Therefore, in treatment clinical course, the most effectively solve this problem and the adverse consequences brought is always industry more stubborn problem.
Utility model content
The technical problems to be solved in the utility model is: provide one to reflux and structure the simplest blood return prevention needleless zero-pressure infusion connector by the most anti-Hemostatic Oral Liquid.
This utility model solves the solution of its technical problem: a kind of needleless zero-pressure infusion connector, include upper cover, silica gel valve, check valve and lower cover, being provided with upper cover die cavity in described upper cover, be provided with lower cover die cavity in described lower cover, described upper cover is connected by ultrasonic bonding with lower cover；Described silica gel valve is placed in upper cover die cavity, and with the surface interference fit of upper cover；The junction of upper cover die cavity and lower cover die cavity is located at by described check valve, and the outline of described check valve is suitable with the outline of lower cover die cavity, and described silica gel valve and check valve are silica gel material.
As the further improvement of technique scheme, the upper end of described silica gel valve is provided with an opening；Described check valve is V-shaped, and the lower end of check valve has an otch.
As the further improvement of technique scheme, described upper cover 1 is PC material with lower cover；The periphery of described upper cover is provided with standard Luer female joint；Described lower cover includes standard Luer male joint.
The beneficial effects of the utility model are: the needleless zero-pressure infusion connector of the present utility model common effect by check valve and silica gel valve, blood backflow when effectively preventing infusion treatment, it is to avoid unexpected blood back phenomenon occurs, and cost performance is high.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model rather than whole embodiment, and those skilled in the art is not on the premise of paying creative work, it is also possible to obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1 is sectional view of the present utility model；
Fig. 2 is three-dimensional view of the present utility model.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to be completely understood by the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model rather than whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art is obtained on the premise of not paying creative work, belong to the scope of this utility model protection.It addition, all connection/annexations being previously mentioned in literary composition, the most singly refer to that component directly connects, and refer to couple auxiliary according to being embodied as situation by adding or reducing, form more excellent draw bail.Each technical characteristic in the invention, can be with combination of interactions on the premise of the most conflicting conflict.
With reference to Fig. 1～Fig. 2, a kind of needleless zero-pressure infusion connector, include upper cover 1, silica gel valve 2, check valve 3 and lower cover 4, in described upper cover 1, be provided with upper cover die cavity 11, in described lower cover 4, be provided with lower cover die cavity 41, described upper cover 1 is connected by ultrasonic bonding with lower cover 4；Described silica gel valve 2 is placed in upper cover die cavity 11, and with the surface interference fit of upper cover 1；The junction of upper cover die cavity 11 and lower cover die cavity 41 is located at by described check valve 3, and the outline of described check valve 3 is suitable with the outline of lower cover die cavity 41, and described silica gel valve 2 is silica gel material with check valve 3.Infusion connector of the present utility model, utilize the silica gel material characteristic of silica gel valve and check valve, the most effectively form excellent sealing with upper cover die cavity and lower cover die cavity, and upper cover and lower cover pass through ultrasonic bonding, it is ensured that upper cover die cavity and the good sealing property of lower cover die cavity.
Being further used as preferred embodiment, the upper end of described silica gel valve 2 is provided with an opening 21；Described check valve 3 is V-shaped, and the lower end of check valve 3 has an otch 31.During transfusion, coordinate with upper cover with syringe or other transfusion devices, extrude silica gel valve, valve port is opened, and silica gel valve and check valve form a passage, liquid medicine injection in passage, under medicinal liquid extrudes, the otch of check valve is opened, and medicinal liquid flows to human body by lower cover, when having infused, extract syringe or other transfusion devices, produce moment negative pressure, under suction function, check valve valve port is compacted closing, thus effective anti-Hemostatic Oral Liquid refluxes, it is to avoid unexpected blood back phenomenon occurs.
Being further used as preferred embodiment, described upper cover 1 is PC material with lower cover 4；The periphery of described upper cover 1 is provided with standard Luer female joint；Described lower cover 4 includes standard Luer male joint.
Above better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement on the premise of this utility model spirit, and modification or the replacement of these equivalents are all contained in the application claim limited range.
Claims (3)
1. a needleless zero-pressure infusion connector, it is characterized in that: include upper cover (1), silica gel valve (2), check valve (3) and lower cover (4), upper cover die cavity (11) it is provided with in described upper cover (1), being provided with lower cover die cavity (41) in described lower cover (4), described upper cover (1) is connected by ultrasonic bonding with lower cover (4)；In described silica gel valve (2) is placed in upper cover die cavity (11), and with the surface interference fit of upper cover (1)；The junction of upper cover die cavity (11) and lower cover die cavity (41) is located at by described check valve (3), and the outline of described check valve (3) is suitable with the outline of lower cover die cavity (41), and described silica gel valve (2) and check valve (3) are silica gel material.
Needleless zero-pressure infusion connector the most according to claim 1, it is characterised in that: the upper end of described silica gel valve (2) is provided with an opening (21)；Described check valve (3) is V-shaped, and the lower end of check valve (3) has an otch (31).
Needleless zero-pressure infusion connector the most according to claim 2, it is characterised in that: described upper cover (1) and lower cover (4) they are PC material；The periphery of described upper cover (1) is provided with standard Luer female joint；Described lower cover (4) includes standard Luer male joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620310287.2U CN205729881U (en) | 2016-04-13 | 2016-04-13 | A kind of needleless zero-pressure infusion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620310287.2U CN205729881U (en) | 2016-04-13 | 2016-04-13 | A kind of needleless zero-pressure infusion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205729881U true CN205729881U (en) | 2016-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620310287.2U Active CN205729881U (en) | 2016-04-13 | 2016-04-13 | A kind of needleless zero-pressure infusion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205729881U (en) |
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2016
- 2016-04-13 CN CN201620310287.2U patent/CN205729881U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |