CN207768824U - A kind of anti-blood back infusion connector being vented - Google Patents
A kind of anti-blood back infusion connector being vented Download PDFInfo
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- CN207768824U CN207768824U CN201720375070.4U CN201720375070U CN207768824U CN 207768824 U CN207768824 U CN 207768824U CN 201720375070 U CN201720375070 U CN 201720375070U CN 207768824 U CN207768824 U CN 207768824U
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- infusion connector
- upper cover
- lid
- vented
- blood back
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Abstract
The utility model provides a kind of anti-blood back infusion connector being vented, by the way that exhaust outlet directly is arranged on its lid, and the water preventing ability air-filtering membrane of exhaust outlet can be completely covered in setting on lid inner wall, once being mixed with air in infusion pipeline in this way, bubble will be escaped from the exhaust outlet of infusion connector automatically, the case where to effectively air be avoided to enter human body, occurs, compared with water preventing ability air-filtering membrane and exhaust outlet are set to the infusion connector in motion stops in the prior art, the infusion connector of the utility model is more convenient for assembling, be conducive to improve its production efficiency, and water preventing ability air-filtering membrane and the heat sealer of lid inner wall are good, never there is the phenomenon of leakage.And elastic barrier flaps are set between the inlet of liquid outlet and pedestal that the infusion connector of the utility model also covers on it, liquid outlet is obstructed with the rebound using elastic barrier flaps under being more than infusion pressure situation in blood pressure, plays the role of preventing blood backflow.
Description
Technical field
The utility model belongs to medical instruments field, is related to a kind of disposable medical instrument, more particularly to a kind of to have row
The infusion connector of gas and anti-blood back function.
Background technology
Currently, infusion apparatus of the domestic each medical institutions for venous transfusion is usually disposable transfusion device, it is a kind of warp
Cross aseptic process, establish the medical treatment consumptive materials in channel between vein and liquid.Existing general infusion set is generally by syringe needle (such as one
Intravenous infusion needle, the venous detaining needle etc. that secondary property uses), helmet, infusion tube, liquid medicine filter, flow regulator, Murphy
The connections such as dropper, bottle plug puncture unit, air inlet pipe air filter form, and are mainly used for clinical gravity type infusion, to preventing from being infused
Cross-infection in the process plays positive effect.
In Clinical practice, the bottle plug puncture unit of infusion apparatus is inserted into infusion bottle by medical staff, and infusion bottle is hung on transfusion pole
On, it is vented and entire infusion tube is made to be full of liquid, be then turned off flow regulator, you can carry out venipuncture, wait for that syringe needle is worn
Thorn can open flow regulator after fixing, and adjust drop speed and be infused, and liquid is under the action of atmospheric pressure along defeated
Liquid hose flows into Murphy's dropper, when water column pressure is more than vein pressure in Murphy's dropper, the liquid runs down in infusion bottle
Infusion tube flows into vein.However, in infusion process or when in infusion tube remain a small amount of liquid when liquid be totally lost or from
Stopping time, if not closing flow regulator in time or extracting syringe needle, will lead to disease since water column pressure at this time is less than vein pressure
In the venous return to infusion tube of people, unexpected blood return phenomenon occurs.Once there is blood back, disease gently can be then frightened
People causes the worry and uneasiness of patient, and it will cause infusion tubes again can not continue to be infused due to air embolism, clinically
Once there is infusion needle stand and infusion apparatus obscission, causes blood samples of patients to flow out, jeopardize patient vitals.Therefore, it is controlled in clinic
It is always industry more stubborn problem to treat adverse consequences how to solve this problem effectively and its bringing in the process.
For this purpose, many researchs are dedicated to infusion apparatus of the exploitation with anti-blood back function, such as Chinese patent literature
CN104888310A discloses a kind of anti-blood back infusion connector comprising the coupling of sealed connection and interior joint chair and is set to
Elastic barrier flaps between the two, elastic barrier flaps have closure and fluid-through port, closure covering in joint chair liquid outlet with
Liquid flowing is limited, motion stops are equipped on the side wall of interior joint chair, water preventing ability air-filtering membrane is set in motion stops, motion stops
There is exhaust outlet on outer wall.Above-mentioned technology is by being arranged elastic barrier flaps can realize liquid using the elastic deformation of its own
One-way flow, effectively prevents the reflux of blood, and is also provided with exhaust outlet and is allowed to have both degassing function, but in the technology
Exhaust outlet is arranged in motion stops, thus needs again to assemble motion stops and interior joint chair, this is bound to cause infusion connector and is not easy to
Assembly, influences its production efficiency, there is also certain leakage hidden danger for still more Embedded motion stops, and then to infusion connector
Using effect is brought a negative impact.
Utility model content
What the utility model solved be it is existing can the assembling of air exhausting transfusion connector it is inconvenient, there are the defect of leakage hidden danger,
And then provide it is a kind of convenient for assembling and it is without leakage, with exhaust and anti-blood back function infusion connector.
The utility model realizes that the technical solution of above-mentioned purpose is：
A kind of anti-blood back infusion connector being vented, includes the upper cover and pedestal of sealed connection, the liquid outlet of the upper cover
It is connected to setting with the inlet of the pedestal；
The upper cover includes lid and the locating piece that is set in the lid, top of the cover cap together in the pedestal
At least one exhaust outlet is arranged through the inside and outside wall surface of the lid in portion and the top for coating the pedestal, the lid it is interior
Water preventing ability air-filtering membrane is provided on wall, and the exhaust outlet is completely covered in the water preventing ability air-filtering membrane；
One end of the locating piece connects the inner wall of the upper cover, and the other end of the locating piece forms going out for the upper cover
Liquid mouth；
Flexible barrier flaps, the elasticity barrier are set between the liquid outlet and the inlet of the pedestal of the upper cover
The periphery of piece is fixedly connected with the inlet inner wall of the pedestal, and the elasticity barrier flaps include closure and fluid-through port, described
The liquid outlet of the upper cover is completely covered in closure.
The lid is arc or U-shaped.
The exhaust outlet is set to the bottom of the U-shaped lid.
The upper cover further includes inlet tube, and the inlet tube connect setting with the lid.
The end of the inlet tube extends in the U-shaped lid, the water preventing ability air-filtering membrane be arranged in it is described into
Between the end wall surface and the internal face of U-shaped lid corner of liquid pipe.
The locating piece is along the tapered tube body of liquid medicine flow direction bore, the liquid feeding end of the tube body and the inlet tube
End connection setting.
The locating piece is an annular convex platform, and the lower wall surface of the annular convex platform is cambered surface, the cambered surface it is opening down
Setting.
Projection of the liquid outlet of the upper cover in the elastic barrier flaps is located in the closure, so that the closing
Portion is not less than the liquid outlet of the upper cover.
The closure is set to the middle part of the elastic barrier flaps, and the fluid-through port is arranged around the closure.
Periphery around the elastic barrier flaps is additionally provided with a hollow round table, the periphery wall of the round platform and the pedestal
Inner wall fit closely so that the closure of the elasticity barrier flaps raises up and blocks the liquid outlet of the upper cover.
The anti-blood back infusion connector described in the utility model being vented, liquid is followed by inlet tube, locating piece, elasticity
Barrier flaps and pedestal.
Compared with prior art, the anti-blood back infusion connector described in the utility model being vented has the following advantages that：
1, the anti-blood back infusion connector described in the utility model being vented, by the way that directly setting is arranged on the lid of upper cover
Gas port, and the water preventing ability air-filtering membrane of exhaust outlet can be completely covered in setting on lid inner wall, once in this way in infusion pipeline
It is mixed with air, bubble will be escaped from the exhaust outlet of infusion connector automatically, so that the case where effectively air being avoided to enter human body is sent out
It is raw, while also greatly simplifiing the bleeding in infusion process.With in the prior art by water preventing ability air-filtering membrane and row
Gas port is set to the infusion connector in motion stops and compares, and the infusion connector of the utility model is more convenient for assembling, and is conducive to improve it
Production efficiency, and water preventing ability air-filtering membrane and the heat sealer of lid inner wall are good, the phenomenon of leakage never occur.
And the infusion connector of the utility model is in its lid by being arranged locating piece, and at the liquid outlet of upper cover and bottom
Setting includes closure and the elastic barrier flaps of fluid-through port between the inlet of seat, with by the elastic shape of elastic barrier flaps itself
Become the one-way flow for realizing liquid so that even if the infusion connector of the utility model is in hydraulic pressure and the equal or the two of human vein pressure
In the case that pressure difference is smaller, also can still prevent blood backflow, even if such infusion person in infusion process arbitrarily walk about or
Blood return phenomenon will not occur in elevation arm, easily facilitate Clinical practice.
2, the anti-blood back infusion connector described in the utility model being vented, is arranged to by being located part along liquid stream
The tapered tube body of dynamic direction bore, flow velocity increases when liquid can be made to reach elastic barrier flaps in this way, to more effectively force bullet
Property barrier flaps along liquid medicine flow direction deform upon and far from upper cover liquid outlet, such liquid can be from elastic barrier flaps
The fluid-through port opened up flows to human body, to realize the circulation of liquid.
The end of the liquid feeding end of tube body and inlet tube is also connected and is arranged by the infusion connector of the utility model simultaneously so that
Liquid space is formed back between the outer wall of tube body and the inner wall of upper cover, this time liquid space corresponds to the fluid-through port of elastic barrier flaps, such as
This, which is arranged, makes elastic barrier flaps only be contacted with the wall surface of upper cover liquid outlet, is conducive to the surfacing for keeping elastic barrier flaps
Degree, so that it is guaranteed that the closure of elasticity barrier flaps can be pasted closely with the wall surface of upper cover liquid outlet when there is a small amount of blood backflow
It closes, preferably to reach anti-blood back effect.Based on above-mentioned identical reason, the infusion connector of the utility model can also be determined
Position part is arranged to the annular convex platform that a lower wall surface is cambered surface, and the opening down of cambered surface returns liquid to be formed with above-mentioned identical function
Space.
3, the anti-blood back infusion connector described in the utility model being vented is arranged one by the periphery in elastic barrier flaps
Hollow round table, the periphery wall surface of round platform and the internal face of pedestal fit closely, and thus can make elastic barrier flaps and upper cover liquid outlet
Fitting it is closer, while but also elastic barrier flaps can be more solidly fixed to pedestal inlet and upper cover liquid outlet it
Between, be conducive to the anti-blood back effect for enhancing elastic barrier flaps.
4, the infusion connector described in the utility model being vented, lid and bottom seat can be standard 6 thereon:100 circular cones
Connector can also be 6:100 screwed unions so that upper cover can be connect with liquid medicine filter, can also lead to phase with band conehead two
Connection；Pedestal can directly replace infusion needle stand to use, and Nian Jie with the small hose of transfusion needle, can also be connected to transfusion needle
It on small hose or is assemblied on the threeway seat of venous detaining needle, so that the infusion connector of the utility model is with pervasive
Property, use can be connected between infusion apparatus and transfusion needle, can also be fit directly into such as precision filter infusion set, bag-type infusion
The various functions such as device, burette type transfusion apparatus, automatic stop infusion apparatus, automatic-exhaust transfusion device infusion apparatus, pump infusion apparatus, dialysis
It is used on pipeline and central venous catheter.
Description of the drawings
It, below will be to specific embodiment party in order to illustrate more clearly of the technical solution in specific embodiment of the present invention
Attached drawing is briefly described needed in formula description, it should be apparent that, the accompanying drawings in the following description is the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure chart of the anti-blood back infusion connector described in embodiment 1 being vented；
Fig. 2 is a kind of vertical view of embodiment of elastic barrier flaps in embodiment 1；
Fig. 3 is the vertical view of the another embodiment of elastic barrier flaps in embodiment 1；
Fig. 4 is the structure chart of the anti-blood back infusion connector being vented described in embodiment 2；
Wherein, reference numeral is as follows：
10- upper covers；11- lids；12- locating pieces；13- exhaust outlets；14- water preventing ability air-filtering membranes；15- inlet tubes；
20- pedestals；30- elasticity barrier flaps；31- closures；32- fluid-through ports；33- round platforms.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "upper", "lower", "inner", "outside"
Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it should not be understood as limiting the present invention.In addition, term " connected ", " connection " shall be understood in a broad sense, for example, can be with
It is to be fixedly connected, may be a detachable connection, or is integrally connected；It can be mechanical connection, can also be electrical connection；It can be with
It is to be connected directly, can also can is indirectly connected through an intermediary the connection inside two elements.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
As shown in Figure 1, the anti-blood back infusion connector being vented described in the present embodiment includes 10 He of upper cover being tightly connected
Pedestal 20, the liquid outlet of the upper cover 10 are connected to setting with the inlet of the pedestal 20；Wherein：
The upper cover 10 is 6:100 screwed unions further comprise lid 11, connect setting with the lid 11
Inlet tube 15 and the locating piece 12 being set in the lid 11, the lid 11 are covered on the top of the pedestal 20 simultaneously
The top of the pedestal 20 is coated, the lid 11 is U-shaped in the present embodiment, and the end of the inlet tube 15 extends to described
In U-shaped lid 11, arc can also be in other embodiments certainly；In the bottom of the U-shaped lid 11 and inside and outside it
At least one exhaust outlet 13 is arranged in wall surface, in the inner wall of the end wall surface and 11 corner of U-shaped lid of the inlet tube 15
The water preventing ability air-filtering membrane 14 of the exhaust outlet 13 can be completely covered by being additionally provided between face, and there are two the present embodiment settings
Exhaust outlet, other embodiments can also be arranged as required to one or more exhaust outlets；
One end of the locating piece 12 connects the inner wall of the upper cover 10, and the other end of the locating piece 12 is formed on described
The liquid outlet of lid 10, the locating piece 12 is an annular convex platform in the present embodiment, and the lower wall surface of the annular convex platform is cambered surface,
The opening down setting of the cambered surface；Elasticity is set between the liquid outlet and the inlet of the pedestal 20 of the upper cover 10
The periphery of barrier flaps 30, the elasticity barrier flaps 30 is fixedly connected with the inlet inner wall of the pedestal 20, the elasticity barrier
Piece 30 includes closure 31, fluid-through port 32 and hollow round platform 33, and the liquid outlet of the upper cover 10 is in the elastic barrier flaps 30
On projection be located in the closure 31 so that the liquid outlet of the upper cover 10 can be completely covered in the closure 31,
Please referring also to Fig. 2 and Fig. 3 in the present embodiment, the closure 31 is set to the middle part of the elastic barrier flaps 30, described logical
Liquid mouth 32 is arranged around the closure 31, and the shape of fluid-through port 32 can be poroid, can also be threadiness；The round platform 33 encloses
Around the periphery setting of the elastic barrier flaps 30, the periphery wall of the round platform 33 and the inner wall of the pedestal 20 fit closely, with
The closure 31 of the elastic barrier flaps 30 is set to raise up and block the liquid outlet of the upper cover 10, pedestal 20 in the present embodiment
It is 6:100 screwed unions.
Embodiment 2
As a kind of embodiment of modification, the structure of the anti-blood back infusion connector being vented described in the present embodiment is substantially
It is similar with above-described embodiment 1, but the difference is that as shown in figure 4, the pedestal of the present embodiment is 6:100 cone joints, and it is fixed
Position part is along the tapered tube body of liquid medicine flow direction bore, and the liquid feeding end of the tube body connect with the end of the inlet tube and sets
It sets.
Embodiment 3
The structure of the anti-blood back infusion connector being vented described in the present embodiment is same as Example 1, but as another kind
Selectable embodiment, upper cover 10 and pedestal 20 in the present embodiment are connected directly with conduit.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among the protection domain that variation is created still in the utility model.
Claims (10)
1. a kind of anti-blood back infusion connector being vented includes the upper cover (10) and pedestal (20) of sealed connection, the upper cover
(10) liquid outlet is connected to setting with the inlet of the pedestal (20)；It is characterized in that：
The upper cover (10) includes lid (11) and the locating piece (12) being set in the lid (11), lid (11) lid
Top together in the pedestal (20) and the top for coating the pedestal (20), the inside and outside wall surface through the lid (11) are arranged
At least one exhaust outlet (13), setting water preventing ability air-filtering membrane (14) on the inner wall of the lid (11), and the water preventing ability
The exhaust outlet (13) is completely covered in air-filtering membrane (14)；
One end of the locating piece (12) connects the inner wall of the upper cover (10), and the other end of the locating piece (12) forms described
The liquid outlet of upper cover (10)；
Elastic barrier flaps (30), the bullet are set between the liquid outlet and the inlet of the pedestal (20) of the upper cover (10)
Property barrier flaps (30) periphery be fixedly connected with the inlet inner wall of the pedestal (20), it is described elasticity barrier flaps (30) include envelope
The liquid outlet of the upper cover (10) is completely covered in closing part (31) and fluid-through port (32), the closure (31).
2. the anti-blood back infusion connector according to claim 1 being vented, which is characterized in that the lid (11) is arc
Or U-shaped.
3. the anti-blood back infusion connector according to claim 2 being vented, which is characterized in that exhaust outlet (13) setting
In the bottom of the U-shaped lid (11).
4. the anti-blood back infusion connector according to claim 2 being vented, which is characterized in that the upper cover (10) further includes
Inlet tube (15), the inlet tube (15) connect setting with the lid (11).
5. the anti-blood back infusion connector according to claim 4 being vented, which is characterized in that the end of the inlet tube (15)
End extends in the U-shaped lid (11), and the water preventing ability air-filtering membrane (14) is arranged in the end of the inlet tube (15)
Between wall surface and the internal face of the U-shaped lid (11) corner.
6. the anti-blood back infusion connector according to claim 4 being vented, which is characterized in that the locating piece (12) is edge
The tapered tube body of liquid medicine flow direction bore, the liquid feeding end of the tube body connect setting with the end of the inlet tube (15).
7. the anti-blood back infusion connector according to claim 1 being vented, which is characterized in that the locating piece (12) is one
The lower wall surface of annular convex platform, the annular convex platform is cambered surface, the opening down setting of the cambered surface.
8. the anti-blood back infusion connector according to claim 1 being vented, which is characterized in that the upper cover (10) goes out liquid
Projection of the mouth on the elastic barrier flaps (30) is located in the closure (31), so that the closure (31) is not less than institute
State the liquid outlet of upper cover (10).
9. the anti-blood back infusion connector according to claim 8 being vented, which is characterized in that closure (31) setting
In the middle part of the elastic barrier flaps (30), the fluid-through port (32) is arranged around the closure (31).
10. the anti-blood back infusion connector that can be vented according to claim 1-9 any one of them, which is characterized in that around described
The periphery of elastic barrier flaps (30) is additionally provided with a hollow round table (33), periphery wall and the pedestal (20) of the round platform (33)
Inner wall fit closely so that it is described elasticity barrier flaps (30) closure (31) raise up and block the upper cover (10)
Liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720375070.4U CN207768824U (en) | 2017-04-11 | 2017-04-11 | A kind of anti-blood back infusion connector being vented |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720375070.4U CN207768824U (en) | 2017-04-11 | 2017-04-11 | A kind of anti-blood back infusion connector being vented |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207768824U true CN207768824U (en) | 2018-08-28 |
Family
ID=63217864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720375070.4U Active CN207768824U (en) | 2017-04-11 | 2017-04-11 | A kind of anti-blood back infusion connector being vented |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207768824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544693A (en) * | 2020-05-14 | 2020-08-18 | 夏培勇 | Infusion apparatus for pediatric nursing |
-
2017
- 2017-04-11 CN CN201720375070.4U patent/CN207768824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544693A (en) * | 2020-05-14 | 2020-08-18 | 夏培勇 | Infusion apparatus for pediatric nursing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 Address after: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee after: Henan Shuguang Jianshi Industrial Development Co.,Ltd. Address before: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee before: HENAN SHUGUANG JIANSHI MEDICAL EQUIPMENT GROUP Co.,Ltd. Patentee before: Zou Chunping |
|
| TR01 | Transfer of patent right |