CN205515784U

CN205515784U - Plug, infusion connect and infusion pipeline subassembly

Info

Publication number: CN205515784U
Application number: CN201620183219.4U
Authority: CN
Inventors: 陈燕青
Original assignee: SHENZHEN ANTE GAOKE INDUSTRIAL Co Ltd
Current assignee: Shenzhen ante medical Limited by Share Ltd
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2016-08-31
Anticipated expiration: 2026-03-10

Abstract

The utility model discloses a plug, infusion connect and infusion pipeline subassembly, wherein, the plug is installed in the kneck of infusion joint, including the plug main part, the plug main part has first terminal surface and the second terminal surface that is relative setting, first terminal surface is equipped with first depressed area, be equipped with in the plug main part certainly the slit that extend to the second terminal surface the first depressed area of the first terminal surface of plug main part, the slit includes certainly the first sub - slit that the second terminal surface set up is run through to the first depressed area of the first terminal surface of plug main part the plug installation extremely when infusing the kneck that connects, the first terminal surface of plug outwards, the second terminal surface orientation of plug the inner chamber that the infusion connects. The utility model discloses technical scheme aims at making the plug is in the process a lot of extrusion of the infusion end of transfusion system is difficult to split by crowded through the back.

Description

Plug, infusion connector and infusion pipeline assembly

Technical field

This utility model relates to medical instruments field, is specifically related to a kind of plug, infusion connector and infusion pipeline assembly.

Background technology

In the infusion pipeline of medical apparatus and instruments, the joint of infusion pipeline usually uses Needleless seal joint, it is attached with external transfusion device, Needleless seal joint is as its name suggests when external transfusion device, transfusion device is without band syringe needle, just can be connected with infusion pipeline by this Needleless seal joint and infuse, in closed positive pressure connector as disclosed in patent CN204307139U of China's Mainland, just for a kind of common Needleless seal joint.Description embodiment and Fig. 1 to 4 of seeing China's Mainland patent CN204307139U understand:

The core component of Needleless seal joint is the plug 4 of the port (usually feed liquor port) being located at described joint, this plug 4 has the first relative end face 41 and the second end face 42, it is provided with in described plug 4 and runs through described first end face 41 and the slit 5 of the second end face 42 setting, before the use, under the elastic effect of self of described plug 4, described slit 5 is in closure state, so that described Needleless seal joint is in sealing state, when the transfusion end of described transfusion device passes from described slit 5, the transfusion end of described transfusion device and described Needleless seal fittings, and can infuse.

But, there is following defect in above-mentioned Needleless seal joint, described slit 5 is positioned at one end of the second end face 42, after transfusion being repeatedly pressed through of end of described transfusion device, easily by squeeze crack.

Utility model content

Main purpose of the present utility model is to provide a kind of plug, it is intended to after being repeatedly pressed through of transfusion end of described transfusion device, it is not easy to by squeeze crack.

For arriving above-mentioned technical purpose, this utility model provides a kind of plug, it is installed on the seam of infusion connector, including plug main body, described plug main body has in the first end face being oppositely arranged and the second end face, described first end face is provided with the first depressed area, the slit extended from the first depressed area of the first end face of described plug main body it is provided with to the second end face in described plug main body, described slit includes running through the first sub-slit that the second end face is arranged from the first depressed area of the first end face of described plug main body, when described plug installs the seam to described infusion connector, first end face of described plug is outwardly, second end face of described plug is towards the inner chamber of described infusion connector.

Preferably, caving in further and form the second depressed area in described first depressed area, described slit is positioned at described second depressed area in the central point of described first end face.

Preferably, described slit also includes the second sub-slit intersected with described first sub-slit, and described second sub-slit is offered to described second end face from the first depressed area of described first end face.

Preferably, caving in further and form the second depressed area in described first depressed area, described first sub-slit and the second sub-slit, in the junction of described first end face, are positioned at described second depressed area.

Preferably, described second sub-slit and the first sub-slit intersect, so that described slit is cross or X font.

Preferably, described slit also includes the 3rd sub-slit offered from the first depressed area of described first end face to described second end face, described slit has longitudinally that the length direction along described plug main body extends and to have the week along described plug upwardly extending across direction, one end on direction of described first sub-slit, the second sub-slit and the 3rd sub-slit is connected, so that described slit is T font or Y-shaped setting.

Preferably, described second sub-slit and the 3rd sub-slit all run through described second end face setting.

Preferably, the zone line of described second end face protrudes and arranges to form rib, and one end away from described first depressed area of described slit is located on described rib.

This utility model provides again a kind of infusion connector, plug including main pipeline He the seam being installed on described main pipeline, described plug includes plug main body, described plug main body has in the first end face being oppositely arranged and the second end face, described first end face is provided with the first depressed area, the first depressed area of the first end face from described plug main body it is provided with to the slit of the second end face in described plug main body, described slit includes running through the first sub-slit that the second end face is arranged from the first depressed area of the first end face of described plug main body, when described plug installs the seam to described infusion connector, first end face of described plug is outwardly, second end face of described plug is towards the inner chamber of described infusion connector.

Preferably, described infusion connector also includes the locking cap being located at the interface end of described main pipeline, described locking cap include in tubular and be fixed by socket in described main pipeline interface end peripheral sleeve and from one end away from described interface end of described sleeve to the annular flange flange of the inside projection of described sleeve, first end face of described plug main body abuts with described annular flange flange, second end face abuts with the end face of described interface end, so that described plug is clamped and fastened between the end face of described annular flange flange and described interface end.

Preferably, the internal face of described sleeve is provided with female thread, and the outside wall surface of described interface end is provided with external screw thread, is connected by described female thread and external screw thread between described sleeve with described interface end.

Preferably, described infusion connector also includes extruding cap, the recipient in described extruding cap includes the peripheral urceolus being socketed on described interface end and is located at described urceolus and being coaxially disposed with described urceolus, described recipient is in order to internal mobile to described main pipeline, be extruded through described first sub-slit, and with the inner space of described main pipeline.

Preferably, described infusion connector is breeches joint, and described infusion connector also includes the other pipeline connected with described main pipeline.

This utility model also provides for a kind of infusion pipeline assembly, including infusion pipeline and the infusion connector of the liquid feeding end being located at described infusion pipeline, described infusion connector includes main pipeline and the plug of the seam being installed on described main pipeline, described plug includes plug main body, described plug main body has in the first end face being oppositely arranged and the second end face, described first end face is provided with the first depressed area, the first depressed area of the first end face from described plug main body it is provided with to the slit of the second end face in described plug main body, described slit includes running through the first sub-slit that the second end face is arranged from the first depressed area of the first end face of described plug main body, when described plug installs the seam to described infusion connector, first end face of described plug is outwardly, second end face of described plug is towards the inner chamber of described infusion connector.

Technical solutions of the utility model are by being provided with the first depressed area at described first end face, and, described slit is offered from the first depressed area of the first end face of described plug main body, described first depressed area one is conveniently played and is guided the transfusion end of syringe and get into the effect of described slit, and make described transfusion end accurate with described slit para-position, to avoid because of described transfusion end and described slit because para-position is inaccurate by squeeze crack, another side, described slit is arranged from described first depressed area, and make on described first end face, the surrounding of described slit is arranged higher than described slit, the intensity making the surrounding of described slit is good, and make described slit be not easy when the transfusion end of syringe squeezes through by squeeze crack.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the structure shown in these accompanying drawings.

The perspective view of the first embodiment of the plug that Fig. 1 provides for this utility model；

Fig. 2 is the front elevational schematic of the plug in Fig. 1；

Fig. 3 is the schematic rear view of plug in Fig. 1；

Fig. 4 is the cross-sectional schematic of plug in Fig. 1；

Fig. 5 is the schematic side view of plug in Fig. 1；

The perspective view of the second embodiment of the plug that Fig. 6 provides for this utility model；

Fig. 7 is the front elevational schematic of the plug in Fig. 6；

Fig. 8 is the schematic rear view of plug in Fig. 6；

Fig. 9 is the cross-sectional schematic of plug in Fig. 6；

Figure 10 is the schematic side view of plug in Fig. 6；

The perspective view of the 3rd embodiment of the plug that Figure 11 provides for this utility model；

Figure 12 is the front elevational schematic of the plug in Figure 11；

Figure 13 is the schematic rear view of plug in Figure 11；

Figure 14 is the schematic side view of plug in Figure 11；

One embodiment of the infusion connector that Figure 15 provides for this utility model, the cross-sectional schematic before extruding cap extruding plug；

Figure 16 is the infusion connector in Figure 15, the cross-sectional schematic after extruding cap extruding plug；

Figure 17 is the decomposing schematic representation of the part-structure of the infusion connector of Figure 15.

This utility model drawing reference numeral illustrates:

The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

Need explanation, if this utility model embodiment relates to directivity instruction (such as up, down, left, right, before and after ...), then directionality instruction is only used for explanation relative position relation under a certain particular pose (as shown in drawings) between each parts, motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.

Additionally, if this utility model embodiment relates to the description of " first ", " second " etc., the description being then somebody's turn to do " first ", " second " etc. is only used for describing purpose, and it is not intended that indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exists, the most not this utility model require protection domain within.

This utility model provides a kind of plug, is installed on the seam of infusion connector:

nullThe schematic diagram of the first embodiment of the plug that Fig. 1 to Fig. 5 provides for this utility model，Refer to Fig. 1 to Fig. 5，In embodiment of the present utility model，Described plug 10 includes plug main body 1，Described plug main body 1 has in the first end face 1a being oppositely arranged and the second end face 1b，Described first end face 1a is provided with the first depressed area 11，First depressed area 11 of the first end face 1a from described plug main body 1 it is provided with to the slit 13 of the second end face 1b in described plug main body 1，Described slit 13 includes that the first sub-slit 131 that the second end face 1b is arranged is run through in first depressed area 11 of the first end face 1a from described plug main body 1，When described plug 10 installs the seam to described infusion connector，First end face 1a of described plug 10 is outwardly，Second end face 1b of described plug 10 is towards the inner chamber of described infusion connector.

Install to the interface of described infusion connector at described plug 10, before described slit 13 is extruded, described plug main body 1 is under the effect of the elastic force of self, or under the effect of peripheral extruding force, the wall making described slit 13 is bonded to each other and is in airtight state, and the interface of described infusion connector is in sealing state；The transfusion end of syringe is being got into described slit 13 and through after described slit 13 from described first end face 1a, and the transfusion end of described syringe and the inner space of the interface of described infusion connector, so that the interface of described infusion connector is in an ON state.

In the present embodiment, described plug main body 1 is arranged in cylinder, obvious described plug main body 1 is not limited to cylinder, can also be other shapes, in the present embodiment, why described plug main body 1 is designed in cylinder, it is because, in the present embodiment, in described plug main body 1 is located at the interface of described infusion connector and coordinate with the inner chamber of the interface of described infusion connector, and the interface of described infusion connector is typically designed to circle, so, described plug main body 1 respective design is cylinder, obviously, when the interface of described infusion connector is not circular, correspondingly, described plug main body 1 is without being designed as cylinder.In addition, in other embodiments, described plug main body 1 can also be that the interface covering described infusion connector is arranged, now, described plug main body 1 need not and the Interference fit of described infusion connector, therefore, the shape of described plug main body 1 is little with the shape relation of the interface of described infusion connector, and can be with flexible design.

The material of described plug main body 1 does not limits, it is only necessary to have preferable elastomeric material and to be applicable to the various gum elastics of medical apparatus and instruments, silicone rubber etc. material the most permissible.

Technical solutions of the utility model are by being provided with the first depressed area 11 at described first end face 1a, and, described slit 13 is offered from first depressed area 11 of the first end face 1a of described plug main body 1, described first depressed area 11 1 aspect plays and guides the transfusion end of syringe and get into the effect of described slit 13, and make described transfusion end accurate with the para-position of described slit 13, to avoid because of described transfusion end and described slit 13 because para-position is inaccurate by squeeze crack, another side, described slit 13 is arranged from described first depressed area 11, and make on described first end face 1a, the surrounding of described slit 13 is arranged higher than described slit 13, the intensity making the surrounding of described slit 13 is good, and make described slit 13 be not easy when the transfusion end of syringe squeezes through by squeeze crack.

Described slit 13 can only only include described first sub-slit 131, certainly, many strips slit can also be included, namely in addition to the first sub-slit 131, also have the second sub-slit 132, 3rd sub-slit 133 etc., refer to Fig. 1 to Fig. 5, in first embodiment of the present utility model, described slit 13 only arranges described first sub-slit 131, and in Fig. 6 to Figure 10, in second embodiment of the present utility model, described slit 13 also includes the second sub-slit 132, and in Figure 10 to Figure 14, in 3rd embodiment of the present utility model, described slit 13 also includes the 3rd sub-slit 133.As long as the existence having the first sub-slit 131 in theory just can meet the basic function demand of described plug main body 1, namely the interface of infusion connector has sealing state and on-state as described in above-mentioned making.And when described slit 13 includes many strips slit, described slit 13 is made to be easier to squeezed opening, and make the transfusion end of syringe squeeze through described slit 13 and be easier to, correspondingly, described slit 13 is more difficult by squeeze crack, then, the bar number of sub-slit is not The more the better, because, the quantity of the most sub-slit is too much, it is inadequate that the elasticity of described slit 13 crosses the elastic-restoring force of self well and accordingly, if the pressure in the interface of described infusion connector is excessive, it is likely to squeeze described slit 13, and the sealing property of described plug is had a greatly reduced quality, as can be seen here, the quantity of sub-slit designs depending on being actually needed.

In addition, it is directed at described slit 13 to further facilitate the transfusion end of described transfusion device, cave in further and form the second depressed area 12 in described first depressed area 11, described slit 13 is centrally located at described second depressed area 12 in described first end face 1a, in first embodiment of the present utility model, being embodied in, described first sub-slit 131 is centrally located at described second depressed area 12.

Second embodiment of the plug that Fig. 6 to 10 provides for this utility model, this embodiment is with the difference of first embodiment: described slit 13 also includes the second sub-slit 132 intersected with described first sub-slit 131, and described second sub-slit 132 is offered to described second end face 1b from first depressed area 11 of described first end face 1a.

Described second sub-slit 132 can run through described second end face 1b, can also be not through described second end face 1b, when described second sub-slit 132 runs through the second end face 1b, make, the elasticity at the described slit 13 two ends on described first end face 1a and the second end face 1b is the most fine, and then, the transfusion end of described transfusion device is easy to get into described slit 13 from described first end face 1a, and be easy to from described second end face 1b through and with the interface inner space of described infusion connector；When described second sub-slit 132 is not through the second end face 1b, described slit 13 is at one end good springiness of described first end face 1a, and the intensity of the one end on described second end face 1b is good, the transfusion end of described transfusion device is easy to get into described slit 13 from described first end face 1a, need to expend some strength through described second end face 1b, but, so but there is corresponding benefit, the interior intracavity liquid that described slit 13 is difficult to the interface by described infusion connector in one end of described second end face 1b squeezes, namely the sealing of described plug can be made relatively good.In the present embodiment, described second sub-slit 132 does not extends through described second end face 1b (Fig. 8 can be seen that).

Further, in the second embodiment of the present utility model, described first sub-slit 131 and the second sub-slit 132, in described first end face 1a junction, are positioned at described second depressed area 12, to facilitate the transfusion end of described syringe to be directed at described slit 13.

Additionally, described second sub-slit 132 and the first sub-slit 131 intersect, so that described slit 13 is in cross or X font, specifically, in the present embodiment, described slit 13 is in cross setting (Fig. 7 can be seen that).

3rd embodiment of the plug that Figure 10 to 15 provides for this utility model, this embodiment is with the difference of the second embodiment:

Described slit 13 also includes the 3rd sub-slit 133 offered from first depressed area 11 of described first end face 1a to described second end face 12.Described slit 13 has longitudinally that the length direction along described plug main body 1 extends and to have the week along described plug main body 1 upwardly extending across direction, described first sub-slit the 131, second sub-slit 132 is connected with one end on direction of the 3rd sub-slit 133, so that described slit 13 in T font or Y-shaped arrange, specifically, in the present embodiment, described slit is that Y-shaped is arranged.

Described 3rd sub-slit 133 can run through described second end face 1b, it is also possible to not through described second end face 1b, and corresponding benefit is as similar in the second slit 132 in the second embodiment, does not repeats at this.And specifically, in the present embodiment, described second sub-slit 132 and the 3rd sub-slit 133 all run through described second end face 1b and arrange.

Further, in the present embodiment, described first sub-slit the 131, second sub-slit 132 and the 3rd sub-slit 133, in described first end face 1a interface point, are positioned at described second depressed area 12, to facilitate the transfusion end of described syringe to be directed at described slit 13.

In this utility model embodiment first embodiment, the second embodiment and the 3rd embodiment, described plug 10 protrudes setting to form rib 14 at the zone line of described second end face 1b, one end away from described first depressed area 1a of described slit 13 is located on described rib 14, specifically, in first embodiment of the present utility model and the second embodiment, described first sub-slit passes through 131 wears described second end face 1b, and one end away from described first depressed area 11 of described first sub-slit 131 is positioned at described rib 14；In this utility model the 3rd embodiment, described first sub-slit 131, second sub-slit 132 and the 3rd sub-slit 133 all run through described second end face 1b, and described first sub-slit 131, one end away from described first depressed area 11 of second sub-slit 132 and the 3rd sub-slit 133 is positioned at described rib 14, thus, described slit 13 is got into from described first end face 1a when described syringe, make the dispensing end of described syringe when described second end face 1b passes described slit 13, described rib 14 can undertake a part of extruding force, make described plug 10 more difficult by squeeze crack.

This utility model also provides for a kind of infusion connector 100.

Refer to Figure 15 to Figure 17, in an embodiment of the infusion connector of this utility model offer, infusion connector 100 includes main pipeline 2a and the plug 10 of the interface end 21 being installed on described main pipeline, the concrete structure of described plug 10 is with reference to above-described embodiment, owing to described infusion connector 100 have employed whole technical schemes of above-mentioned all embodiments, having all beneficial effects that the technical scheme of above-described embodiment is brought the most equally, this is no longer going to repeat them.

In the present embodiment, described infusion connector 100 also includes the locking cap 22 being located at the interface end 21 of described main pipeline 2a, described locking cap 22 include in tubular and be fixed by socket in described main pipeline 2a interface end 21 peripheral sleeve 221 and from one end away from described interface end 21 of described sleeve 221 to the annular flange flange 222 of the inside projection of described sleeve 221.First end face 1a of described plug main body 1 abuts with described annular flange flange 222, and the second end face 1b abuts with the end face of described interface end 21, so that described plug 10 is clamped and fastened between described annular flange flange 222 and the end face of described interface end 21.

By arranging described locking cap 22, described plug 10 is fixed at the interface end 21 of described main pipeline 2a, and the installation that convenience is to described plug 10, and, it is also convenient for changing the plug 10 of damage after described plug 10 damages, in addition, the fixing elasticity to described plug 10 can also be adjusted by adjusting described locking cap 22.

Further, in the present embodiment, in order to strengthen fixing described plug 10 further, the end face of described interface end 21 is that step surface is arranged, the inner ring surface 21a arranged including the opening around described the interface end 21 and outer ring surface 21b protruding from described inner ring surface 21a, connecting between described inner ring surface 21a and described outer ring surface 21b and have step surface 21c, the second end face 1b of described plug main body 1 abuts with described inner ring surface 21a, and the side surface of described plug main body 1 abuts with described step surface 21c.

In the present embodiment, using between described sleeve 221 with described interface end 21 and threaded, specifically, the internal face of described sleeve 221 is provided with female thread, the outside wall surface of described interface end 21 is provided with external screw thread, is connected by described female thread and external screw thread between described sleeve 221 with described interface end 21.Certainly, between described sleeve 221 and described interface end 21, connected mode is not limited to this one, for example, it is also possible to use the connected modes such as bonding, ultrasonic bonding to connect.

Install to the interface end 21 of described infusion connector 100 at described plug 10, before described slit 13 is extruded, described plug main body 1 is under the effect of the elastic force of self, or under the effect of peripheral extruding force, the wall making described slit 13 is bonded to each other and is in airtight state, and the interface end 21 of described infusion connector 100 is in sealing state；The transfusion end of syringe is being got into described slit 13 and through after described slit 13 from described first end face 1a, the transfusion end of described syringe and the inner space of the interface end 21 of described infusion connector 100, so that the interface end 21 of described infusion connector 100 is in an ON state.

In the present embodiment, in order to avoid the transfusion end of described syringe directly squeezes described slit 13 and bad operation, described infusion connector 100 also includes extruding cap 23, the recipient 232 in described extruding cap 23 includes the peripheral urceolus 231 being socketed on described interface end and is located at described urceolus 231 and being coaxially disposed with described urceolus 231, described recipient 232 is in order to internal mobile to described main pipeline 2a, be extruded through described first sub-slit 131, and with the inner space of described main pipeline 2a.

For this, before the interface end 21 of described infusion connector 100 connects the transfusion end of transfusion device, described slit 13 do not got into by described recipient 232, as shown in figure 15, the interface end 21 of described infusion connector 100 is in sealing state, when the interface end 21 of described infusion connector 100 needs the transfusion end connecing transfusion device, described recipient 232 is moved to described plug 10, described recipient 232 is extruded through described first sub-slit 131, and with the inner space of described main pipeline 2a, the interface end 21 of described infusion connector 100 is in an ON state.

In this enforcement, described urceolus 231 is socketed on the periphery of the peripheral and described sleeve 221 of described interface end 21, can be to be slidably socketed, it is also possible to be threaded between described urceolus 231 and described interface end 21 and described sleeve 221.

In this enforcement, described infusion connector 100 is breeches joint, and described infusion connector 100 also includes the other pipeline 2b being connected with described pipeline.

This utility model provides again a kind of infusion pipeline assembly, including infusion pipeline and the infusion connector of the liquid feeding end being located at described infusion pipeline, the concrete structure of described infusion connector is with reference to above-described embodiment, owing to described infusion pipeline assembly have employed whole technical schemes of above-mentioned all embodiments, having all beneficial effects that the technical scheme of above-described embodiment is brought the most equally, this is no longer going to repeat them.

These are only preferred embodiment of the present utility model; not thereby its scope of the claims is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; directly or indirectly it is used in other relevant technical fields, is the most in like manner included in scope of patent protection of the present utility model.

Claims

1. a plug, is installed on the seam of infusion connector, it is characterised in that include plug main body, Described plug main body has in the first end face being oppositely arranged and the second end face, and described first end face is provided with One depressed area, be provided with in described plug main body the first depressed area of the first end face from described plug main body to The slit that second end face extends, described slit includes the first depression of the first end face from described plug main body The first sub-slit that the second end face is arranged is run through in district, installs the interface to described infusion connector at described plug During place, outwardly, the second end face of described plug is towards described infusion connector for the first end face of described plug Inner chamber.

2. plug as claimed in claim 1, it is characterised in that cave in further in described first depressed area Forming the second depressed area, described slit is centrally located at described second depressed area in described first end face.

3. plug as claimed in claim 1, it is characterised in that described slit also includes and described first Sub-slit intersect the second sub-slit, described second sub-slit from the first depressed area of described first end face to Described second end face is offered.

4. plug as claimed in claim 3, it is characterised in that cave in further in described first depressed area Form the second depressed area, described first sub-slit and the second sub-slit in the junction of described first end face, It is positioned at described second depressed area.

5. plug as claimed in claim 3, it is characterised in that described second sub-slit and the first son are narrow Seam intersects, so that described slit is cross or X font.

6. plug as claimed in claim 3, it is characterised in that described slit also includes from described first The 3rd sub-slit that first depressed area of end face is offered to described second end face, described slit has along described Longitudinally that the length direction of plug main body extends and having upwardly extends in the week along described plug Across direction, described first sub-slit, the second sub-slit and on direction the one of the 3rd sub-slit End is connected, so that described slit is T font or Y-shaped setting.

7. plug as claimed in claim 6, it is characterised in that described second sub-slit and the 3rd son are narrow Seam all runs through described second end face and arranges.

8. plug as claimed in claim 1, it is characterised in that the zone line of described second end face is convex Going out to arrange to form rib, described reinforcement is located in one end away from described first depressed area of described slit In portion.

9. an infusion connector, it is characterised in that include main pipeline and be installed on the interface of described main pipeline The plug at place, described plug is the plug as described in claim 1 to 8 any one.

10. infusion connector as claimed in claim 9, it is characterised in that described infusion connector also includes setting In the locking cap of the interface end of described main pipeline, described locking cap includes in tubular and is fixed by socket in described The peripheral sleeve of the interface end of main pipeline and from described sleeve away from described interface end one end to The annular flange flange of the inside projection of described sleeve, the first end face of described plug main body and described annular flange flange Abutting, the second end face abuts with the end face of described interface end, so that described plug is clamped and fastened on described Between the end face of annular flange flange and described interface end.

11. infusion connectors as claimed in claim 10, it is characterised in that described interface end is step-like Arranging, the end face of described interface end includes the inner ring surface arranged around described interface, protrudes from described internal ring The outer ring surface in face and connect the step surface between described inner ring surface and described outer ring surface, described plug master Second end face of body abuts with described inner ring surface, and the side surface of described plug main body supports with described step surface Connect.

12. infusion connectors as claimed in claim 10, it is characterised in that the internal face of described sleeve sets Female thread, the outside wall surface of described interface end is had to be provided with external screw thread, logical between described sleeve and described interface end Cross described female thread and external screw thread connects.

13. infusion connectors as claimed in claim 9, it is characterised in that also include extruding cap, described crowded In pressure cap includes being socketed on the peripheral urceolus of described interface end and is located at described urceolus and with described outside The recipient that cylinder is coaxially disposed, described recipient, in order to internal mobile to described main pipeline, is extruded through institute State the first sub-slit, and with the inner space of described main pipeline.

14. infusion connectors as claimed in claim 9, it is characterised in that described infusion connector is that Y type connects Head, described infusion connector also includes the other pipeline connected with described main pipeline.

15. 1 kinds of infusion pipeline assemblies, it is characterised in that include infusion pipeline and be located at described defeated The infusion connector of one liquid feeding end of liquid pipeline, described infusion connector is described in claim 9 to 14 any one Infusion connector.