CN208726277U - Infusion adapter and the transfusion system with the infusion adapter - Google Patents

Abstract

The utility model discloses a kind of infusion adapter and transfusion systems with the infusion adapter, the infusion adapter includes ontology, reservoir channel and infusion channel, ontology has a first end and a second end, first end is suitable for puncturing into the infusion port of infusion vessel, and second end, which has, to be adapted to the first port of perfusion tube and be adapted to the second port of syringe；Reservoir channel is through to second end from first end and is connected to second port, and reservoir channel is configured to the direction one-way conduction from second end to first end；Infusion channel is through to second end from first end and is connected to first port, and infusion channel is configured at least be connected from first end to the direction of second end.It is very easy to use according to infusion adapter provided by the embodiment of the utility model and the transfusion system with the infusion adapter, it can simplify the structure of infusion bag, reduce the cost of infusion bag.

Description

Infusion adapter and the transfusion system with the infusion adapter

Technical field

The utility model relates to venous transfusion utensil more particularly to a kind of infusion adapter and with the infusion adapter Transfusion system.

Background technique

In intravenous injection, for the drug of certain powder types, then need to be prepared again before administration, such as powder The drug of last form needs to mix with diluent to be configured to the drug to be suitable for the fluid form of injection.

It, can be by with fluid form be configured in container, in this way in general, when preparing these drugs Compounding pharmaceutical, it usually needs will be in prepared infusion of medicine to infusion vessel.Currently, infusion bag is divided into two kinds, the first is defeated Liquid bag only has an infusion port, and second of infusion bag has a liquid injection port and an infusion port (two interfaces).Carrying out medicine When object injects, for the first infusion bag, the perfusion tube for usually first connecting the infusion port of infusion vessel is extracted, then passes through note The syringe needle of emitter penetrates the infusion port of infusion vessel, and liquid is injected into infusion vessel, after by infusion of medicine to infusion bag, Syringe is extracted again, plugs perfusion tube again, in this way, operation it is extremely cumbersome, it is inconvenient, and cause infusion interrupt etc. ask Topic.And for second of infusion bag, the liquid injection port for usually directly penetrating the syringe needle of syringe to infusion bag carries out fluid injection, this Kind mode, fluid injection and infusion separation, are independent of each other, still, structure is complicated for infusion bag each other.

Meanwhile for above two infusion bag, find in actual operation, since the needle diameter of syringe is small, injection It is unreliable to seal between the syringe needle of device and the infusion port of infusion bag or injection port, may cause drug leakage, and drug leakage Pollution will cause to working environment.

Utility model content

The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality It is to propose a kind of infusion adapter with a novel purpose.

Another purpose of the utility model is to propose a kind of transfusion system with above-mentioned infusion adapter.

To achieve the above object, on the one hand, according to the infusion adapter of the utility model embodiment, comprising:

Ontology, the ontology have a first end and a second end, and the first end is suitable for puncturing to the infusion port of infusion vessel In, the second end, which has, to be adapted to the first port of perfusion tube and is adapted to the second port of syringe；

Reservoir channel, the reservoir channel are through to the second end from the first end and connect with the second port It is logical, and the reservoir channel is configured to the direction one-way conduction from the second end to the first end；

Infusion channel, the infusion channel are through to the second end from the first end and connect with the first port It is logical, and the infusion channel is configured at least be connected from the first end to the direction of the second end.

According to infusion adapter provided by the embodiment of the utility model, first end can be punctured to the infusion port of infusion vessel In, and second end have be adapted to the first port of perfusion tube and be adapted to the second port of syringe, in this way, can lead to Cross second port injection of medicine into infusion vessel, meanwhile, by first port export drug be directly patient infusion, fluid injection and Infusion is mutually independent of each other, very easy to use.Moreover, using the infusion adapter then only needing that there is one on infusion vessel Infusion port that is to say and only need an interface, in this way, can simplify the structure of infusion bag, reduce infusion bag at This.

In addition, can also have following additional technology special according to the infusion adapter of the utility model above-described embodiment Sign:

One embodiment according to the present utility model, the ontology include:

Puncture component, the puncture component have cutting tip, connecting pin and are connected to the connecting pin from the cutting tip respectively The first fluid injection subchannel and first infusion subchannel；

Attachment base, the attachment base have the second fluid injection subchannel and the second infusion subchannel, the first port and the Two-port netwerk is set on the attachment base, and the first port is connected to the second infusion subchannel, the second port It is connected to the second fluid injection subchannel；

Unidirectional adapter, the unidirectional adapter be connected to the puncture component the connecting pin and the attachment base it Between, and have from the attachment base to the third fluid injection subchannel of puncture component direction one-way conduction and at least from the puncture The third infusion subchannel that part to the attachment base direction is connected；

The third fluid injection subchannel is connected to the first fluid injection subchannel and the second fluid injection subchannel, the third infusion The subchannel connection first infusion subchannel and the second infusion subchannel.

One embodiment according to the present utility model, the puncture component include:

Inner tube limits the first infusion subchannel in said inner tube；

Outer tube, the outer coaxial tube are sheathed on outside said inner tube and limit the first fluid injection between said inner tube Channel, the upper end of the outer tube are formed as spur shape, and the lower end of the outer tube has a funnel interconnecting piece, the funnel interconnecting piece It is detachably connected with the upper end of the unidirectional adapter.

One embodiment according to the present utility model, the unidirectional adapter include:

Transfer tube, limits the third infusion subchannel in the transfer tube, and the upper end of the transfer tube with it is described The lower end of inner tube is connected；

Cylinder, the cylinder coaxial sleeve are set to outside the transfer tube and limit the third note between the transfer tube Liquid subchannel, and the upper and lower ends of the cylinder are detachably connected with the funnel interconnecting piece and the attachment base respectively；

Annular baffle, the periphery wall of the annular baffle are connected with the internal perisporium of the cylinder, the annular baffle it is interior Peripheral wall is connected with the inner wall of the transfer tube, and circumferentially spaced on the annular baffle is disposed with multiple groups escape orifice；

Escape orifice described in multiple unidirectional opening and closing elements, multiple unidirectional opening and closing elements and multiple groups corresponds, each list It is set to the annular baffle to opening and closing element, and escape orifice described in controlling corresponding one group is from the attachment base to the puncture component Direction conducting.

One embodiment according to the present utility model, the annular baffle are equipped with multiple centre bores, multiple centers Escape orifice described in hole and multiple groups corresponds, and each centre bore is positioned at the center of escape orifice described in corresponding one group；

The unidirectional opening and closing element includes valve block and the socket part that is downwardly protrude to form from the valve block center, the valve block with The upper surface of the annular baffle is bonded, and escape orifice described in blocking corresponding one group, and the socket part is socketed on corresponding described Centre bore, when the syringe injects liquid from the second port, the liquid via the second fluid injection subchannel and Third fluid injection subchannel forces the valve sheet deformation and opens the escape orifice.

One embodiment according to the present utility model, the attachment base include:

Pedestal, the pedestal have the chamber that vertically extends, the open upper end of the chamber, the pedestal it is upper It holds and is detachably connected with the lower end of the unidirectional adapter；

The chamber isolation is second fluid injection in the pedestal by connecting tube, connecting tube coaxial arrangement Subchannel and the second infusion subchannel, and the upper end of the connecting tube is connected with the lower end of the transfer tube；

The first port is formed in the lower end of the pedestal and communicates with the lower end of the connecting tube, the second port It is formed in the side wall of the pedestal.

One embodiment according to the present utility model is folded between the upper end of the transfer tube and the lower end of said inner tube First gasket is folded with the second gasket between the lower end of the transfer tube and the upper end of the connecting tube.

One embodiment according to the present utility model, the upper end of the cylinder are threadedly coupled with the funnel interconnecting piece, institute The lower end for stating cylinder is connect with the threaded upper ends of the pedestal.

One embodiment according to the present utility model, the periphery wall of the outer tube are protruded outward and are circumferentially formed There is sealing ring, the sealing ring is multiple, axially spaced-apart arrangement of multiple sealing rings along the outer tube.

On the other hand, according to the transfusion system of the utility model embodiment, comprising:

Infusion vessel, the infusion vessel have injection port；

The first end of infusion adapter as described above, the infusion adapter punctures in the injection port；

Syringe, the syringe are connected with the second port of the infusion adapter；

Perfusion tube, one end of the perfusion tube with it is described infusion adapter first port be connected, the perfusion tube it is another One end is adapted to be coupled to human vein.

According to transfusion system provided by the embodiment of the utility model, there is above-mentioned infusion adapter, therefore, user Just, it moreover, using the infusion adapter, then only needs that there is an infusion port on infusion vessel, that is to say and only need one A interface reduces the cost of infusion bag in this way, can simplify the structure of infusion bag.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the cross-sectional view of the utility model embodiment infusion adapter；

Fig. 2 is the cross-sectional view of unidirectional adapter in the utility model embodiment infusion adapter；

Fig. 3 is the structural schematic diagram of the utility model embodiment transfusion system.

Appended drawing reference:

Ontology 100；

Puncture component 10；

Inner tube 101；

Outer tube 102；

Funnel interconnecting piece 1021；

First fluid injection subchannel P10；

First infusion subchannel P11；

Cutting tip D1；

Connecting pin D2；

Attachment base 20；

Pedestal 201；

Connecting tube 202；

Second fluid injection subchannel P20；

Second infusion subchannel P21；

Second port 203；

First port 204；

Unidirectional adapter 30；

Cylinder 301；

Transfer tube 302；

Annular baffle 303；

Escape orifice 3031；

Centre bore 3032；

Unidirectional opening and closing element 304；

Valve block 3041；

Socket part 3042；

Third fluid injection subchannel P30；

Third infusion subchannel P31；

First gasket 31；

Second gasket 32；

Infusion adapter 1000；

Infusion vessel 2000；

Infusion port 2001；

Syringe 3000；

Perfusion tube 4000.

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation, based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

The infusion adapter 1000 of the utility model embodiment is described in detail with reference to the accompanying drawings.

Referring to figs. 1 to shown in Fig. 2, according to infusion adapter 1000 provided by the embodiment of the utility model, including ontology 100, reservoir channel and infusion channel.

Specifically, ontology 100 has a first end and a second end, the first end is defeated suitable for puncture to infusion vessel 2000 In liquid mouth 2001, the second end has the first port 204 for being adapted to perfusion tube 4000 and is adapted to syringe 3000 Second port 203.

Reservoir channel is through to the second end from the first end and is connected to the second port 203, and the note Liquid channel is configured to the direction one-way conduction from the second end to the first end.

Infusion channel is through to the second end from the first end and is connected to the first port 204, and described defeated Liquid channel is configured at least be connected from the first end to the direction of the second end.

In other words, which has first end, second end, a reservoir channel and an infusion channel, in Fig. 1 In example, first end is the upper end of ontology 100, and second end is the lower end of ontology 100, wherein first end is for being pierced into infusion The infusion port 2001 of container 2000 (such as infusion bag etc.), realization are connected with infusion vessel 2000.And there are two second end tools Port, one of port are first port 204, which is the another port for connecting with perfusion tube 4000 For second port 203, which is for connecting with syringe 3000.

Reservoir channel and infusion channel are through to second end from first end, moreover, reservoir channel and infusion channel are each other Independent, the lower end of infusion channel is connected with first port 204, and the lower end of reservoir channel is connected with second port 203.This Outside, reservoir channel is the direction one-way conduction from second end to first end, be that is to say, fluid can only be from second end to first end stream It is dynamic, and infusion channel is then at least to be connected from first end to the direction of the second end, be that is to say, fluid at least can be from first It holds to second end and flows.

When specifically used, the upper end of perfusion tube 4000 is connected to the first port 204 of 100 lower end of ontology, perfusion tube 4000 lower end is connected to human vein, and the medical fluid in infusion bag is flowed from the top to the bottom by infusion channel, and flows into infusion Pipe 4000 is input in human vein finally by perfusion tube 4000.And if necessary to inject configured medicine into infusion bag Object then can be connected to the second port 203 of 100 lower end of ontology with syringe 3000, and push syringe 3000, so that syringe Drug in 3000 is flowed from bottom to top by reservoir channel, is finally injected into infusion bag.

According to infusion adapter provided by the embodiment of the utility model, first end can be punctured to infusion vessel 2000 In infusion port 2001, and second end has the first port 204 for being adapted to perfusion tube 4000 and is adapted to syringe 3000 Second port 203, in this way, can by second port 203 into infusion vessel 2000 injection of medicine, meanwhile, pass through first It is directly patient's infusion that port 204, which exports drug, and fluid injection is mutually independent of each other with infusion, very easy to use.Moreover, defeated using this Liquid adapter then only needs to have an infusion port 2001 on infusion vessel 2000, that is to say and only needs an interface i.e. Can, in this way, can simplify the structure of infusion bag, reduce the cost of infusion bag.

Shown in referring to Fig.1, in one embodiment of the utility model, ontology 100 includes puncture component 10, attachment base 20 and list To adapter 30, wherein puncture component 10 has cutting tip D1, connecting pin D2 and is connected to the company from the cutting tip D1 respectively Meet the infusion of the first fluid injection subchannel P10 and first subchannel P11 of end D2.In Fig. 1 example, cutting tip D1 is puncture component 10 Upper end, connecting pin D2 are the lower end of puncture component 10, and advantageous, cutting tip D1 is formed as spur shape, in this way, being convenient to be pierced into extremely The infusion port 2001 of infusion vessel 2000.The puncture component 10 is hollow structure, internal to have perforative first note from top to bottom The infusion of liquid subchannel P10 and first subchannel P11, the first fluid injection subchannel P10 and the first infusion subchannel P11 are independent of one another.

Attachment base 20 has the infusion subchannel P21 of the second fluid injection subchannel P20 and second, the first port 204 and the Two-port netwerk 203 is set on the attachment base 20, and the first port 204 is connected to the second infusion subchannel P21, institute Second port 203 is stated to be connected to the second fluid injection subchannel P20.In such as Fig. 1 example, the second fluid injection subchannel P20 and Two infusion subchannel P21 are vertically extended, and the infusion of the second fluid injection subchannel P20 and second subchannel P21 is that This is independent.And first port 204 is communicated with the lower end of the second infusion subchannel P21, second port 203 is and the second note What the lower end of liquid subchannel P20 communicated.

Preferably, first port 204 and second port 203 are an integral structure with attachment base 20, certainly, the present invention Without being limited thereto, first port 204 and second port 203 are also possible to individual components, by removably (such as screw thread connect Connect, screw connects, pressing is fastened and connected) it is connect with attachment base 20.

Unidirectional adapter 30 is connected between the connecting pin D2 of the puncture component 10 and the attachment base 20, and is had Have from the attachment base 20 to the third fluid injection subchannel P30 of the 10 direction one-way conduction of puncture component and at least from the puncture The third infusion subchannel P31 that part 10 to 20 direction of attachment base is connected.Third fluid injection subchannel P30 is connected to first note Liquid subchannel P10 and the second fluid injection subchannel P20, third infusion subchannel P31 connection the first infusion subchannel P11 With the second infusion subchannel P21.

That is, the one-directional connector is for connecting puncture component 10 and attachment base 20, specifically, in Fig. 1 example In, the upper end of one-directional connector is connected with the lower end of puncture component 10, and the lower end of one-directional connector is connected with 20 upper end of attachment base.It should There is third fluid injection subchannel P30 independent of each other and third infusion subchannel P31 in one-directional connector, work as one-directional connector When being connected between puncture component 10 and attachment base 20, third fluid injection subchannel P30 be just connected to the first fluid injection subchannel P10 and To form above-mentioned reservoir channel between second fluid injection subchannel P20, and third infusion leads to and is just connected to the first infusion To form above-mentioned infusion subchannel between the infusion of channel P11 and second subchannel P21.In addition, third fluid injection subchannel P30 It is from attachment base 20 to 10 direction one-way conduction of puncture component, in this way, realizing that fluid is merely able to from the second end of ontology 100 to the One end flowing, and third infusion subchannel P31 is at least to be connected from puncture component 10 to 20 direction of attachment base, in this way, realizing fluid It can at least be flowed from the first end of ontology 100 to second end.

In infusion process, the medical fluid in infusion bag passes sequentially through the first infusion subchannel P11, third infusion subchannel P31 and second is infused after subchannel P21, then flows into perfusion tube 4000 from first port 204, finally inputs from perfusion tube 4000 Into human vein.And when needing the injection of medicine into infusion bag, the drug of impregnator injected by second port 203 and according to It is secondary to pass through the second reservoir channel, third reservoir channel and the first reservoir channel, finally it is injected into infusion bag.

In the present embodiment, ontology 100 using the above structure, it is convenient that the processing is simple, and manufacturing cost is low, meanwhile, structure Simply, assembly and convenient disassembly.

In a specific embodiment of the utility model, puncture component 10 includes inner tube 101 and outer tube 102, wherein inner tube The first infusion subchannel P11 is limited in 101；102 coaxial sleeve of outer tube is set to outside said inner tube 101 and and said inner tube The first fluid injection subchannel P10 is limited between 101, the upper end of the outer tube 102 is formed as spur shape, the outer tube 102 Lower end have a funnel interconnecting piece 1021, the upper end of the funnel interconnecting piece 1021 and the unidirectional adapter 30 detachably connects It connects.

That is, the diameter of inner tube 101 is less than the diameter of outer tube 102, it is coaxially disposed by inner tube 101 and outer tube 102 The above-mentioned infusion of the first fluid injection subchannel P10 and first subchannel P11 can be limited.And the upper end of outer tube 102 is formed as convex It is pointed, then it can be used as the cutting tip D1 of the puncture component 10, in order to puncture to the infusion port 2001 of infusion vessel 2000, outer tube Funnel interconnecting piece 1021 is arranged in 102 lower end, can be convenient and is detachably connected with the upper end of unidirectional adapter 30, thus, it is possible to The infusion of the first fluid injection subchannel P10 for ensuring to be formed and first subchannel P11 can be independent of one another, moreover, its structure is simple, dress With conveniently, the processing is simple.

Shown in referring to FIG. 1 and FIG. 2, in a specific embodiment of the utility model, unidirectional adapter 30 includes switching Pipe 302, cylinder 301, annular baffle 303 and multiple unidirectional opening and closing elements 304, wherein it is defeated that the third is limited in transfer tube 302 Liquid subchannel P31, and the upper end of the transfer tube 302 is connected with the lower end of said inner tube 101.

301 coaxial sleeve of cylinder is set to outside the transfer tube 302 and limits the third note between the transfer tube 302 Liquid subchannel P30, and the upper and lower ends of the cylinder 301 are removable with the funnel interconnecting piece 1021 and the attachment base respectively Unload connection.

The periphery wall of annular baffle 303 is connected with the internal perisporium of the cylinder 301, the internal perisporium of the annular baffle 303 It is connected with the inner wall of the transfer tube 302, and circumferentially spaced on the annular baffle 303 is disposed with multiple groups escape orifice 3031；

Multiple unidirectional opening and closing elements 304 are corresponded with escape orifice 3031 described in multiple groups, each unidirectional opening and closing element 304 are set to the annular baffle 303, and escape orifice 3031 described in controlling corresponding one group is from the attachment base 20 to described The direction of puncture component 10 is connected.

In other words, in the present embodiment unidirectional adapter 30 mainly by transfer tube 302, cylinder 301, annular baffle 303 and more A unidirectional opening and closing element 304 forms, wherein the diameter of transfer tube 302 is less than the diameter of cylinder 301, and transfer tube 302 is coaxially set It sets in cylinder 301, above-mentioned third fluid injection subchannel P30 and third is limited by transfer tube 302 and cylinder 301 and are infused Subchannel P31.And annular baffle 303 is then between transfer tube 302 and cylinder 301, and with third fluid injection subchannel P30 Cross section be adapted, and then block third fluid injection subchannel P30.Multiple groups escape orifice 3031 is set on the annular baffle 303, often One group of escape orifice 3031 controls its open and close by a unidirectional opening and closing element 304, specifically, working as syringe 3000 to injection When drug, medical fluid is flowed upwardly into third fluid injection subchannel P30, and unidirectional opening and closing element 304 is made to open escape orifice 3031, then Medical fluid flows into the first fluid injection subchannel P10 by escape orifice 3031, and works as in third fluid injection subchannel P30 and flow into without medical fluid When, then unidirectionally opening and closing valve keeps escape orifice 3031 to close.

As a result, in the present embodiment, switch control is carried out to escape orifice 3031 by unidirectional opening and closing element 304, then may be implemented Fluid can only flow from bottom to top, and then ensure to need drug to be added that can be injected into infusion bag by reservoir channel, and defeated Medical fluid in liquid bag is unable to reservoir channel outflow, and human vein can only be input to from infusion channel, and fluid injection and infusion are completely only It stands and does not interfere with each other, easy to use, structure is simple.

Optionally, cylinder 301, annular baffle 303 and transfer tube 302 are an integral molding structure, in this way, structure is simpler It is single, it is easy to process, meanwhile, the sealing effect between annular baffle 303 and cylinder 301 and transfer tube 302 is more preferable.

Advantageous referring to shown in Fig. 2, in an example of the utility model, annular baffle 303 is equipped with multiple centers Hole 3032, multiple centre bores 3032 are corresponded with escape orifice 3031 described in multiple groups, and each centre bore 3032 The center of the escape orifice 3031 described in corresponding one group.

Unidirectional opening and closing element 304 includes valve block 3041 and the socket part being downwardly protrude to form from 3041 center of valve block 3042, the valve block 3041 is bonded with the upper surface of the annular baffle 303, and escape orifice described in blocking corresponding one group 3031, the socket part is socketed on the corresponding centre bore 3032, when the syringe 3000 is injected from the second port 203 When liquid, the liquid forces 3041 shape of valve block via the second fluid injection subchannel P20 and third fluid injection subchannel P30 Become and opens the escape orifice 3031.

That is, in the initial state, valve block 3041 is tightly attached to 303 upper surface of annular baffle so that it is cyclic annular every Sealing is completely covered by plate 303 in escape orifice 3031, and when syringe 3000 is from 203 injection of medicine of second port, drug warp Third fluid injection subchannel P30 is entered to by the second fluid injection subchannel P20, and the pressure in third fluid injection subchannel P30 gradually increases Greatly, and then valve block 3041 is forced to generate deformation upwards, between being formed between the valve block 3041 of deformation and the upper surface of annular baffle 303 Gap, at this point, escape orifice 3031 can be opened, drug flows into the first reservoir channel of top by escape orifice 3031 and gap It is interior, infusion bag is injected into finally by the first reservoir channel.

Shown in referring to Fig.1, in a specific embodiment of the utility model, attachment base 20 includes pedestal 201 and connection Pipe 202, wherein pedestal 201 has the chamber that vertically extends, the open upper end of the chamber, the pedestal 201 it is upper It holds and is detachably connected with the lower end of the unidirectional adapter 30.The coaxial arrangement of connecting tube 202 is in the pedestal 201, and by institute Stating chamber isolation is the second fluid injection subchannel P20 and the second infusion subchannel P21, and the connecting tube 202 is upper End is connected with the lower end of the transfer tube 302；The first port 204 be formed in the lower end of the pedestal 201 and with the company The lower end of adapter tube 202 communicates, and the second port 203 is formed in the side wall of the pedestal 201.

That is, pedestal 201 is hollow structure, it is internal that there is chamber, and connecting tube 202 is set in chamber in turn Limit the sub- reservoir channel of above-mentioned second and the second sub- infusion channel, first port 204 be located at the lower end of pedestal 201 and with The lower end of connecting tube 202 communicates, and the side wall that second port 203 is located at pedestal 201 is communicated with the second fluid injection subchannel P20, knot Structure is simple, easy to process.

It is advantageous, the first gasket 31 is folded between the upper end of transfer tube 302 and the lower end of said inner tube 101, it is described The second gasket 32 is folded between the lower end of transfer tube 302 and the upper end of the connecting tube 202.In this way, utilizing the first sealing The sealing effect that pad 31 is formed after transfer tube 302 can be made to connect with inner tube 101 is more preferable, can be made using the second gasket 32 It is more preferable to obtain the sealing effect formed after transfer tube 302 is connect with connecting tube 202, and then ensures that infusion channel sealing effect is more preferable, It avoids in the liquid leakage to reservoir channel in infusion channel.

More favorably, the upper end of cylinder 301 is threadedly coupled with the funnel interconnecting piece 1021, under the cylinder 301 End is connect with the threaded upper ends of the pedestal 201.In this way, being convenient between puncture component 10, unidirectional adapter 30 and attachment base 20 Assembly.

It is understood that the invention is not limited thereto, between puncture component 10, unidirectional adapter 30 and attachment base 20 can Being detachably connected with the detachable connection methods such as can also use flanged joint, snap connection, be socketed.

In an a little embodiments of the utility model, the periphery wall of outer tube 102 protrudes outward and circumferentially shape At there is sealing ring, the sealing ring is multiple, axially spaced-apart arrangement of multiple sealing rings along the outer tube 102.In this way, When outer tube 102 is punctured into the infusion port 2001 of infusion vessel 2000, the inner wall of sealing ring and infusion port 2001 is fitted closely, Good sealing effect is formed, the problems such as polluting caused by liquid leakage is avoided the occurrence of.

Referring to shown in Fig. 3, according to the transfusion system of the utility model embodiment, including infusion vessel 2000, such as above-mentioned reality Apply infusion vessel 2000, syringe 3000 described in example and perfusion tube 4000, wherein infusion vessel 2000 has injection port, defeated The first end of liquid adapter 1000 punctures in the injection port, the second port of syringe 3000 and the infusion adapter 203 be connected, one end of perfusion tube 4000 with it is described be infused adapter first port 204 be connected, the perfusion tube 4000 it is another One end is adapted to be coupled to human vein.

According to transfusion system provided by the embodiment of the utility model, there is above-mentioned infusion adapter, therefore, user Just, it moreover, using the infusion adapter, then only needs that there is an infusion port 2001 on infusion vessel 2000, that is to say Only an interface is needed to reduce the cost of infusion bag in this way, can simplify the structure of infusion bag.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of infusion adapter characterized by comprising

Ontology, the ontology have a first end and a second end, and the first end is suitable for puncturing into the infusion port of infusion vessel, institute It states second end and has and be adapted to the first port of perfusion tube and be adapted to the second port of syringe；

Reservoir channel, the reservoir channel are through to the second end and connected with the second port from the first end, and The reservoir channel is configured to the direction one-way conduction from the second end to the first end；

Infusion channel, the infusion channel are through to the second end from the first end and are connected to the first port, and The infusion channel is configured at least be connected from the first end to the direction of the second end.

2. infusion adapter according to claim 1, which is characterized in that the ontology includes:

Puncture component, the puncture component have cutting tip, connecting pin and are connected to the of the connecting pin from the cutting tip respectively One fluid injection subchannel and the first infusion subchannel；

Attachment base, the attachment base have the second fluid injection subchannel and the second infusion subchannel, the first port and second end Mouth is set on the attachment base, and the first port is connected to the second infusion subchannel, the second port and institute State the connection of the second fluid injection subchannel；

Unidirectional adapter, the unidirectional adapter are connected between the connecting pin of the puncture component and the attachment base, and With from the attachment base to the third fluid injection subchannel of puncture component direction one-way conduction and at least from the puncture component extremely The third infusion subchannel of the attachment base direction conducting；

The third fluid injection subchannel is connected to the first fluid injection subchannel and the second fluid injection subchannel, and third infusion is logical The road connection first infusion subchannel and the second infusion subchannel.

3. infusion adapter according to claim 2, which is characterized in that the puncture component includes:

Inner tube limits the first infusion subchannel in said inner tube；

Outer tube, the outer coaxial tube, which is sheathed on outside said inner tube and limits the first fluid injection between said inner tube, to be led to Road, the upper end of the outer tube are formed as spur shape, and the lower end of the outer tube has a funnel interconnecting piece, the funnel interconnecting piece with The upper end of the unidirectional adapter is detachably connected.

4. infusion adapter according to claim 3, which is characterized in that the unidirectional adapter includes:

Transfer tube limits the third infusion subchannel, and the upper end of the transfer tube and said inner tube in the transfer tube Lower end be connected；

Cylinder, the cylinder coaxial sleeve are set to outside the transfer tube and limit third fluid injection between the transfer tube Channel, and the upper and lower ends of the cylinder are detachably connected with the funnel interconnecting piece and the attachment base respectively；

Annular baffle, the periphery wall of the annular baffle are connected with the internal perisporium of the cylinder, the internal perisporium of the annular baffle It is connected with the inner wall of the transfer tube, and circumferentially spaced on the annular baffle is disposed with multiple groups escape orifice；

Multiple unidirectional opening and closing elements, escape orifice described in multiple unidirectional opening and closing elements and multiple groups correspond, each described unidirectionally to open Closing member is set to the annular baffle, and escape orifice described in controlling corresponding one group is from the attachment base to the side of the puncture component To conducting.

5. infusion adapter according to claim 4, which is characterized in that the annular baffle is equipped with multiple centre bores, Escape orifice described in multiple centre bores and multiple groups corresponds, and each centre bore be located at corresponding one group described in release The center in hole；

The unidirectional opening and closing element includes valve block and the socket part that is downwardly protrude to form from the valve block center, the valve block with it is described The upper surface of annular baffle is bonded, and escape orifice described in blocking corresponding one group, the socket part be socketed on it is corresponding it is described in Heart hole, when the syringe injects liquid from the second port, the liquid is via the second fluid injection subchannel and the Three fluid injection subchannels force the valve sheet deformation and open the escape orifice.

6. infusion adapter according to claim 4, which is characterized in that the attachment base includes:

Pedestal, the pedestal have the chamber that vertically extends, the open upper end of the chamber, the upper end of the pedestal with The lower end of the unidirectional adapter is detachably connected；

The chamber isolation is that the second fluid injection leads in the pedestal by connecting tube, connecting tube coaxial arrangement Road and the second infusion subchannel, and the upper end of the connecting tube is connected with the lower end of the transfer tube；

The first port is formed in the lower end of the pedestal and communicates with the lower end of the connecting tube, and the second port is formed In the side wall of the pedestal.

7. infusion adapter according to claim 6, which is characterized in that under the upper end and said inner tube of the transfer tube It is folded with the first gasket between end, the second sealing is folded between the lower end of the transfer tube and the upper end of the connecting tube Pad.

8. infusion adapter according to claim 6, which is characterized in that the upper end of the cylinder and the funnel interconnecting piece It is threadedly coupled, the lower end of the cylinder is connect with the threaded upper ends of the pedestal.

9. infusion adapter according to claim 3, which is characterized in that the periphery wall of the outer tube protrudes outward and edge Circumferentially extending is formed with sealing ring, and the sealing ring is multiple, axially spaced-apart arrangement of multiple sealing rings along the outer tube.

10. a kind of transfusion system characterized by comprising

Infusion vessel, the infusion vessel have injection port；

The first end of infusion adapter as claimed in any one of claims 1-9 wherein, the infusion adapter is punctured in the note In loophole；

Syringe, the syringe are connected with the second port of the infusion adapter；

Perfusion tube, one end of the perfusion tube are connected with the first port of the infusion adapter, the other end of the perfusion tube It is adapted to be coupled to human vein.