CN203619993U - Liquid inlet needle head component and infusion suite - Google Patents
Liquid inlet needle head component and infusion suite Download PDFInfo
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- CN203619993U CN203619993U CN201320723844.XU CN201320723844U CN203619993U CN 203619993 U CN203619993 U CN 203619993U CN 201320723844 U CN201320723844 U CN 201320723844U CN 203619993 U CN203619993 U CN 203619993U
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- feed liquor
- syringe needle
- needle
- bar
- extrusion
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Abstract
The utility model discloses a liquid inlet needle head component and an infusion suite. The liquid inlet needle head component comprises a liquid inlet needle head, wherein a needle withdrawing mechanism comprising an extrusion piece is arranged on the liquid inlet needle head; one end of the extrusion piece is connected with the liquid inlet needle head; the other end of the extrusion piece moves along the liquid inlet needle head axially; the extrusion piece is provided with a pressing part radially moving along the liquid inlet needle head; the pressing part is provided with a release position and a pressing position; in the release position, the other end of the extrusion piece is close to the root of the liquid inlet needle head; the pressing part is far away from the liquid inlet needle head; in the pressing position, the pressing part is close to the liquid inlet needle head; and the other end of the extrusion piece is close to a liquid inlet end of the liquid inlet needle head. Therefore, a liquid outlet spout or other objects connected with the liquid outlet spout can be extruded axially by the other end of the extrusion piece by applying an radial force on the pressing part, and the liquid inlet needle head overcomes friction of the liquid outlet spout smoothly and axially exits from the liquid outlet spout via a counter force of the extrusion piece to the liquid inlet needle head.
Description
Technical field
This utility model relates to medical instruments field, particularly, relates to the infusion set of a kind of feed liquor needle assembly and this assembly of use.
Background technology
Transfusion, as a kind of conventional medical procedure, is widely used in the treatment of various diseases.The medical apparatus and instruments wherein using in transfusion generally comprises the infusion vessel of such as transfusion bag, infusion bottle etc. and medicinal liquid is transported to the transfer line of human body.Wherein the two ends of transfer line generally comprise the feed liquor syringe needle and the liquid discharging pinhead that penetrates human body for inserting infusion vessel.When use, feed liquor syringe needle is directly inserted to the conveying that can realize liquid in the liquid outlet of transfusion bag.In the time extracting syringe needle, need to wait user to use hands that feed liquor syringe needle is pulled up by nurse, this process is due to the frictional force that will overcome between feed liquor syringe needle and liquid outlet, therefore need user careful firmly, once the senior general that accidentally exerted oneself causes feed liquor syringe needle to accidentally injure hand or other people.Therefore, provide a kind of and there is positive effect at the feed liquor syringe needle that can exit from liquid outlet easily and safely.
Utility model content
An object of the present utility model is to provide a kind of transfusion and uses feed liquor needle assembly, feed liquor needle assembly can make easily and safely feed liquor syringe needle exit from infusion vessel.
Another object of the present utility model is to provide a kind of infusion set, the transfusion feed liquor needle assembly that this infusion set is used this utility model to provide.
To achieve these goals, according to an aspect of the present utility model, a kind of transfusion feed liquor needle assembly is provided, comprise feed liquor syringe needle, on described feed liquor syringe needle, be provided with withdraw of the needle mechanism, this withdraw of the needle mechanism comprises extrusion, one end of described extrusion is connected on described feed liquor syringe needle, the other end moves axially along described feed liquor syringe needle, wherein said extrusion has the press section moving radially along described feed liquor syringe needle, this press section has release position and pressing position, in described release position, the described other end of described extrusion approaches the root of described feed liquor syringe needle, and described press section is away from described feed liquor syringe needle, at described pressing position, described press section approaches described feed liquor syringe needle, and the described other end of described extrusion approaches the liquid feeding end of described feed liquor syringe needle.
Preferably, described extrusion comprises the first bar and the second bar, the first end of described the first bar is hinged on the described root of described feed liquor syringe needle, the second end of described the first bar and the first end of described the second bar are hinged, the second end of described the second bar slides along described feed liquor syringe needle, and described press section is formed on the pin joint place between described the first bar and described the second bar.
Preferably, the described other end of described extrusion is connected with ring-shaped article, and this ring-shaped article is set on described feed liquor syringe needle movably.
Preferably, described second end of described the second bar is hinged with ring-shaped article, and this ring-shaped article is set on described feed liquor syringe needle movably.
Preferably, described extrusion is two groups and is arranged on symmetrically the both sides of described feed liquor syringe needle, and described second end of described the second bar that is positioned at both sides is hinged with described ring-shaped article respectively.
Preferably, described feed liquor needle assembly also comprises the elastic component towards extrusion described in described release position bias voltage.
Preferably, described feed liquor needle assembly also comprises the elastic component towards extrusion described in described release position bias voltage, and this elastic component is the extension spring that is positioned at below, described press section, and the two ends of this extension spring connect respectively described the first bar and described the second bar.
According on the other hand of the present utility model, a kind of infusion set is provided, comprise infusion vessel and transfer line, described infusion vessel has liquid outlet, described transfer line has the feed liquor needle assembly for inserting described liquid outlet, the feed liquor needle assembly that described feed liquor needle assembly provides for this utility model.
Pass through technique scheme, can be by the radial force that press section is applied other end axial compression liquid outlet by extrusion or other be connected to the object on liquid outlet, thereby by its counteracting force to feed liquor syringe needle, make smoothly feed liquor syringe needle overcome with the frictional force of liquid outlet and axially exit liquid outlet.Owing to only needing user to apply radial force, and avoid owing to exerting oneself the excessive syringe needle accidental injury accident causing safe ready.
Other feature and advantage of the present utility model are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation this utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation (band broken section) of the infusion set that provides of this utility model the first embodiment;
Fig. 2 is the structural representation of the infusion set that provides of this utility model the second embodiment;
Fig. 3 be infusion vessel in Fig. 2 liquid outlet look up structural representation;
Fig. 4 is the plan structure schematic diagram of feed liquor syringe needle in Fig. 2;
Fig. 5 is the structural representation of the infusion set that provides of this utility model the 3rd embodiment;
Fig. 6 is the structural representation after the infusion set assembling in Fig. 5;
Fig. 7 is the structural representation (band broken section) after the infusion set assembling that provides of this utility model the 4th embodiment;
Fig. 8 is the structural representation (band partial sectional view) of the Hough connector that in Fig. 7, infusion set adopts;
Fig. 9 is the structural representation of the infusion set that provides of this utility model the 5th embodiment;
Figure 10 is the partial structurtes schematic diagram (band partial sectional view) after the infusion set assembling in Fig. 9;
Figure 11 is that feed liquor needle assembly that this utility model preferred implementation provides is applied to the structural representation (band broken section) in the infusion set that the first embodiment provides.
Description of reference numerals
1 infusion vessel 2 transfer lines
3 connecting portion 4 withdraw of the needle mechanisms
5 elastic components
11 liquid outlet 21 feed liquor syringe needles
31 external screw thread 32 screwed holes
33 slide block 34 chutes
36 first flange 37 second flanges
38 connector 35 branch sleeves
41 extrusion 42 ring-shaped articles
341 first groove 342 second grooves
381 fastener hole 351 first spacing preiections
352 second spacing preiection 411 first bars
412 second bars
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation this utility model, is not limited to this utility model.
In this utility model, in the situation that not doing contrary explanation, the noun of locality using normally defines as " upper and lower " under the state of normal infusion, be that feed liquor syringe needle 21 upwards inserts in liquid outlet 11, the direction that " axially, radially, circumferentially " normally inserts liquid outlet 11 along its length taking feed liquor syringe needle 21 is as " axially ", being " radially " perpendicular to this axial direction, is " circumferentially " around this axial direction.In addition, " inside and outside " typically refer to respective objects profile inside and outside.It should be noted that, these nouns of locality are only for illustrating that this utility model is not limited to this utility model.
As shown in Figure 1 to 11, this utility model provides a kind of infusion set, comprises infusion vessel 1(such as transfusion bag or infusion bottle etc.) and transfer line 2, infusion vessel 1 has liquid outlet 11, transfer line 2 has the feed liquor syringe needle 21 for inserting liquid outlet 11, can complete the conveying of medicinal liquid.Wherein in order to complete the purpose of this utility model, as total design, the infusion set that this utility model provides also comprises the connecting portion 3 that liquid outlet 11 and feed liquor syringe needle 21 are removably linked together.Therefore, because the existence of connecting portion 3 can be inserted after the liquid outlet 11 of infusion vessel 1 at feed liquor syringe needle 21, reduce to greatest extent the probability that feed liquor syringe needle 21 comes off from liquid outlet 11 due to careless manipulation, thereby efficiently solve the problem that transfer line 2 comes off from infusion vessel 1, avoided the passive termination of transfusion and the problem that syringe needle pollutes.
It should be noted that, the embodiment that can realize the connecting portion 3 of technique scheme has multiple, this utility model for convenience of description, introduce by reference to the accompanying drawings five kinds of embodiments wherein at this, these five kinds of embodiments, only for this utility model is described, are not limited to this utility model.
First, as shown in Figure 1, in the first embodiment of the present utility model, connecting portion 3 is screw connection structure, realize the connection of feed liquor syringe needle 21 and liquid outlet 11 by the mode of threaded engagement, wherein in the present embodiment, this screw connection structure comprises the external screw thread 31 being formed on feed liquor syringe needle 21, and be formed on the screwed hole 32 on liquid outlet 11, this screwed hole 32 be formed on the path that feed liquor syringe needle 21 inserts liquid outlet 11 and with external screw thread 31 threaded engagement.While using this connected mode, it should be noted that because the rotational freedom of transfer line 2 is limited, set thread turns is difficult for too much, and operated by rotary motion two to three circles can be realized the purpose of this utility model.In addition; as follow-on design; can be with reference to the 5th embodiment as described in Fig. 9 and Figure 10; at the arranged outside external screw thread of liquid outlet 11; and the branch sleeve 35 that setting can be rotated on feed liquor syringe needle 21; and in the inner side of branch sleeve 35, female thread is set; thereby by branch sleeve 35 can with the threaded engagement of liquid outlet 11; in this embodiment; because branch sleeve 35 can rotate with respect to feed liquor syringe needle 21; thereby thread turns can not limit, should drop on equally in protection domain of the present utility model for this mode of texturing.
As shown in Figures 2 to 4, in the second embodiment providing at this utility model, connecting portion 3 is the fit system of slide block 33 and chute 34, and chute 34 is wherein for turning groove structure, thereby slide block 33 can be connected in chute 34.Particularly, connecting portion 3 comprises the slide block 33 in the one being formed in feed liquor syringe needle 21 and liquid outlet 11 and is formed on the chute 34 in another one, slide block 33 is along the radially extension of feed liquor syringe needle 21, chute 34 comprises the first groove 341 and the second groove 342 for holding slidably slide block 33, the first groove 341 have along feed liquor syringe needle 21 radially extend opening slip into for slide block 33, and the depth direction of the first groove 341 extends axially along feed liquor syringe needle 21, the second groove 342 has the opening that is communicated with the first groove 341 the circumferential extension from the first groove 341 along feed liquor syringe needle 21.Therefore slide block 33 can slip into the depth direction of the first groove 341 first vertically entering the first groove 341, in the time sliding into the opening of the second groove 342, transfer along circumferentially rotating and enter in the second groove 342, thereby can realize slide block 33 degree of freedom is in the axial direction locked by the second groove 342, and ensure that feed liquor syringe needle 21 and liquid outlet 11 can not move in the axial direction, avoid feed liquor syringe needle 21 to deviate from liquid outlet 11 then.Said process person easy to use is connected in chute 34 to operating rotationally slide block 33 by first moving axially the Later Zhou Dynasty, one of the Five Dynasties.
Wherein in the present embodiment, slide block 33 is arranged on feed liquor syringe needle 21, is in particular two and be arranged on symmetrically the root of feed liquor syringe needle 21, and wherein chute 34 is arranged on liquid outlet 11, and its first groove 341 is formed on the fluid end face of liquid outlet 11 particularly.And, in order to ensure the stable clamping of feed liquor syringe needle 21, preferably, chute 34 is arranged on liquid outlet 11 symmetrically with respect to the insertion point of feed liquor syringe needle 21, thereby can, simultaneously at the feed liquor of the clamping symmetrically syringe needle 21 of liquid outlet 11, make the connection of the two more stable.As mode of texturing of the present utility model, chute 34 can also comprise from the second groove 342 vertically to the three-flute of downward-extension, finally to pass through three-flute lock slider, in addition, the second groove 342 down can also be extended to layout along peripheral, oblique, also can make slide block 33 be difficult for deviating from from chute 34.All should drop in protection domain of the present utility model for these modes of texturing.
Shown in the 3rd embodiment and the 4th embodiment as shown in Fig. 5 to Fig. 8, connecting portion 3 is flange connection, the connector 38 that wherein connecting portion 3 comprises the first flange 36 of being formed on liquid outlet 11, is formed on the second flange 37 on feed liquor syringe needle 21 and this first flange 36 and the second flange 37 are removably linked together.Particularly, in the 3rd embodiment, as shown in Figure 5 and Figure 6, connector 38 is lock catch connector, in the present embodiment, this lock catch connector is formed as L-type structure, and its one end is hinged on the second flange 37, in the time that needs lock two flanges, after only the first flange 36 and the second flange 37 need being alignd, rotation lock catch connector can be realized the first flange 36 is withheld on the second flange 37, and in the time that needs are opened, counter-rotation lock catch connector.And in the 4th embodiment, as shown in Figure 7 and Figure 8, connector 38 is Hough connector, this Hough connector is the parts for adpting flange well known in the art, groundwork principle is by symmetrically arranged two halves half slot, two flanges to be held simultaneously, then is passed fastener hole 381 and can be realized the connection of flange by securing member.Other connectors for adpting flange except three, 4 two kind of embodiment all drop on protection domain of the present utility model.
In addition in other embodiments, connecting portion 3 can also be concave-convex connection structure, fills in by projection the connection that realizes feed liquor syringe needle 21 and liquid outlet 11 in groove, also drops in protection domain of the present utility model for this mode of texturing.
As shown in Figure 9 and Figure 10, in the 5th embodiment of the present utility model, connecting portion 3 is realized by the branch sleeve 35 that can be socketed in outside liquid outlet 11 is set on feed liquor syringe needle.Particularly, connecting portion 3 comprises branch sleeve 35, the open liquid outlet 11 that is also removably socketed in one end of this branch sleeve 35, and the other end seals and connects feed liquor syringe needle 21, and feed liquor syringe needle 21 inserts liquid outlet 11 through the inner space of sleeve 35.The mode that wherein branch sleeve 35 is socketed in liquid outlet 11 outsides has multiple; for example apply the thread connecting mode in the first embodiment in the present embodiment time; and can also apply in other embodiments chute in the second embodiment and the fit system of slide rail; or other can realize the mode of the two connection, the distortion that is socketed in the various socket modes on liquid outlet for branch sleeve 35 all should drop in protection domain of the present utility model.Wherein, in the time that application needs the connected mode of rotation, preferably, branch sleeve 35 is connected on feed liquor syringe needle 21 pivotally, and the rotation of branch sleeve 35 will can not affect the state of transfer line 2 like this, and practicality is stronger.
Wherein as a kind of a kind of modified model distortion to present embodiment, preferably, feed liquor syringe needle 21 can axially movably be connected on the other end of branch sleeve 35, and on feed liquor syringe needle 21, be formed with the first spacing preiection 351 of the other end inner side that is positioned at branch sleeve 35, and second distance c between the first spacing preiection 351 and the liquid feeding end of feed liquor syringe needle 21 is equal to or greater than the thickness of liquid outlet 11.And wherein insert the on position after liquid outlet 11 at feed liquor syringe needle 21, this first spacing preiection 351 is resisted against on the lower surface of liquid outlet 11, and extract the position of extracting after liquid outlet 11 at feed liquor syringe needle 21, this first spacing preiection 351 is resisted against the inner side of the described other end of branch sleeve.
Therefore can realize by this first spacing preiection 352 three kinds of duties of infusion set.Particularly, can comprise duty, halted state and off working state, wherein in working order, branch sleeve 35 is socketed in outside liquid outlet 11, and feed liquor syringe needle 21 inserts in liquid outlet 11, now the first spacing preiection 351 is against liquid outlet 11, in halted state, now need to end the transfusion to patient, can branch sleeve 35 still external member on liquid outlet 11, only feed liquor syringe needle 21 need be extracted from liquid outlet 11, at this moment the first spacing preiection 351 sleeve 35 that is connected, now the feed liquor part of feed liquor syringe needle is still retained in branch sleeve 35, can ensure the sealing to this part syringe needle.And owing to not needing that transfer line 2 and infusion vessel 1 are departed from, can effectively solve the Placement Problems of transfer line 2, practical.
And further, preferably, on feed liquor syringe needle 21, be also formed with second spacing preiection 352 in the other end outside that is positioned at branch sleeve 35, and as shown in figure 10, the first distance b between the first spacing preiection 351 and the second spacing preiection 352 is equal to or greater than the second distance c between the first spacing preiection 351 and the liquid feeding end of feed liquor syringe needle 21 and is positioned at the wall thickness d sum of the end wall of the other end of branch sleeve 35, and second distance c is equal to or greater than the thickness of liquid outlet 11.Therefore, the displacement of feed liquor syringe needle 21 in branch sleeve 35 is the poor of the first distance b and wall thickness d, and second distance c is the distance that feed liquor syringe needle can move in liquid outlet 11, therefore only need to be equal to or greater than second distance c when above-mentioned difference, can ensure that feed liquor syringe needle 21 can insert liquid outlet 11 and be communicated with medicinal liquid.Therefore, in above-mentioned operating position, only the second spacing preiection 352 need be pushed to the outside of the described other end of the sleeve 35 that is connected, and in above-mentioned halted state, extract feed liquor syringe needle 21 and make the be connected inner side of sleeve of the first spacing preiection 351, this process operation is convenient, practical.
Above-mentioned article the connecting portion 3 in variety of way, introduce and can further improve the withdraw of the needle of the present utility model mechanism 4 below, this withdraw of the needle mechanism 4 can facilitate and make safely feed liquor syringe needle 21 to depart from liquid outlet 11.Embodiment shown in Figure 11 be the first embodiment taking connecting portion 3 as example, the compatibility of the two has been described.Wherein in the time of the needs withdraw of the needle, the connection of only need be first removing the connecting portion 3 of screw connection structure by reverse rotation can be applied withdraw of the needle mechanism 4.In like manner in the second to the 4th embodiment, also first remove connecting portion 3.Different is in the 5th embodiment, need to first apply withdraw of the needle mechanism 4 feed liquor syringe needle 21 is exited to liquid outlet 11, then branch sleeve 35 is departed from from liquid outlet.This withdraw of the needle mechanism 4 not only can be adapted to have in the infusion set of above-mentioned various connecting portions 3, can also be applicable in the existing infusion set without the connecting portion that this utility model provides.
Therefore, this utility model also provides a kind of infusion set of applying the feed liquor needle assembly of this withdraw of the needle mechanism 4 and having this feed liquor needle assembly, for convenience of description, the feed liquor needle assembly providing below with reference to Figure 11 article this utility model, this feed liquor needle assembly convenient and safe in the time carrying out withdraw of the needle operation.
It should be noted that, the withdraw of the needle adopting in this utility model is contemplated that feed liquor syringe needle 21 to exit required axially firmly the changing into of liquid outlet 11 user is more maneuverable and radially exerts oneself.Wherein related mechanism is preferably the mechanism that is similar to slider-crank mechanism.
As shown in figure 11, this utility model provides a kind of transfusion feed liquor needle assembly, comprise feed liquor syringe needle 21, and be provided with withdraw of the needle mechanism 4 on this feed liquor syringe needle 21, this withdraw of the needle mechanism 4 comprises extrusion 41, one end of extrusion 41 is connected on feed liquor syringe needle 21, the other end moves axially along feed liquor syringe needle 21, wherein extrusion 41 has the press section a moving radially along feed liquor syringe needle 21, this press section a has release position and pressing position, in release position, the other end of extrusion 41 approaches the root of feed liquor syringe needle 21, and press section a is away from feed liquor syringe needle 21, at pressing position, press section a approaches feed liquor syringe needle 21, and the other end of extrusion 41 approaches the liquid feeding end of feed liquor syringe needle 21.
Therefore, can be by press section a be applied to radial force other end axial compression liquid outlet 11 by extrusion 41 or other be connected to the object on liquid outlet 11, thereby by the counteracting force of liquid outlet 11 to feed liquor syringe needle 21, make smoothly feed liquor syringe needle 21 overcome with the frictional force of liquid outlet 11 and axially exit liquid outlet 11.This process only needs user to apply radially pressing force to feed liquor syringe needle 21, thereby avoids exerting oneself problem excessive and the needle sting hand that causes.And in the preferred implementation providing at this utility model, extrusion 41 is two covers the both sides that are arranged on symmetrically feed liquor syringe needle 21, such configuration is particularly useful for nurse and carries out one-handed performance, only need thumb and forefinger jointly press section a to be carried out pressing operation simultaneously and can be completed the operation of exiting of feed liquor syringe needle 21, practical.
It should be noted that, the embodiment that can complete the above-mentioned design of this utility model has multiple, for example abutting structure of the concrete structure of extrusion 41, its other end etc., this utility model is in this introduction preferred implementation wherein for convenience of description, this preferred implementation, only for this utility model is described, is not limited to this utility model.
As shown in Figures 1 to 5, the extrusion 41 of this utility model application is preferably the structure that is similar to slider-crank mechanism, particularly, extrusion 41 comprises the first bar 411 and the second bar 412, the first end of the first bar 411 is hinged on the root of feed liquor syringe needle 21, the second end of the first bar 411 and the first end of the second bar 412 are hinged, and the second end of the second bar 412 slides along feed liquor syringe needle 21, and press section a is formed on the pin joint place between the first bar 411 and the second bar 412.Therefore, by cooperatively interacting between two bars, can realize radial force is converted into axial force, support liquid outlet 11 or be connected to the object on liquid outlet 11 by the second end of the second bar 412.Wherein rod member mentioned herein can also can have any shape for being not limited to straight-bar the rod member such as bow of design, in addition in this utility model mentioned hinged be connection means known in this field, specifically can carry out the hinged of two adjacent objects by pin, not do too much and repeat for this type of mode.In addition, the structure of the direction of other change power well known in the art also can be used in this utility model, all should drop in protection domain of the present utility model for this mode of texturing.
In preferred implementation of the present utility model, in order to facilitate the operation of supporting of extrusion 41, preferably, the other end of extrusion 41 is connected with ring-shaped article 42, and this ring-shaped article 42 can axially movably be set on feed liquor syringe needle 21.Particularly, be that the second end of the second bar 412 is hinged on ring-shaped article 42.Therefore can the movement on feed liquor syringe needle 21 realize the operation of supporting to liquid outlet 11 by ring-shaped article 42.In addition, preferably in order to ensure to support the balance and stability of operation, preferably, extrusion 41 is two groups and is arranged on symmetrically the both sides of feed liquor syringe needle 21, and the second end of the second bar 412 that is positioned at both sides is hinged with ring-shaped article 42 respectively.In other embodiments, the second end of the second bar 412 can also can along the axially movable element of feed liquor syringe needle, for example, not become the arcuate member of integral loop etc. by hinged other, all drops in protection domain of the present utility model for this type of distortion.
In preferred implementation of the present utility model, for extrusion 41 can be set back automatically, preferably, feed liquor needle assembly also comprises the elastic component 5 making towards described release position bias voltage extrusion 41.Therefore, in the time that feed liquor syringe needle 21 inserts liquid outlet 11, liquid outlet 11 or other are connected to the article in fluid 11, the branch sleeve 35 of for example above-mentioned the 5th embodiment can be oppressed elastic component 5, and accumulate elastic potential energy, and in the time that needs carry out the withdraw of the needle, first the compressed elastic potential energy that elastic component 5 is accumulated can discharge and automatically make extrusion 41 return to release position, now user to press section a reality radially pressing force by tensile elasticity part 5, after the withdraw of the needle finishes, the elastic potential energy being stretched that elastic component 5 is accumulated can discharge the release position that also makes extrusion 41 recover, to prepare to enter the plug pin operation of next circulation.
Particularly, this elastic component 5 is the extension spring that is positioned at the below of press section a, and the two ends of this extension spring connect respectively the first bar 411 and the second bar 412.To realize the first bar 411 by the elastic pulling force of extension spring and the second bar 412 returns to release position.In addition; this elastic component 5 can also be the stage clip that is positioned at press section a below; this stage clip one end is against press section a; the other end is against feed liquor syringe needle 21; this also can realize the effect that extrusion 41 is automatically restored to release position, all should drop in protection domain of the present utility model for this type of distortion.
To sum up, the infusion set that this utility model provides can make feed liquor syringe needle 21 be connected with liquid outlet 11 is stable, and effectively prevents that transfer line 2 from coming off from infusion vessel 1.In addition, the feed liquor needle assembly that this utility model provides can effectively improve the withdraw of the needle efficiency of feed liquor syringe needle, convenient and safe.Therefore, the utlity model has higher practicality and promotional value.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; this utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, this utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (8)
1. a transfusion feed liquor needle assembly, comprise feed liquor syringe needle (21), it is characterized in that, on described feed liquor syringe needle (21), be provided with withdraw of the needle mechanism (4), this withdraw of the needle mechanism (4) comprises extrusion (41), one end of described extrusion (41) is connected on described feed liquor syringe needle (21), the other end moves axially along described feed liquor syringe needle (21), wherein said extrusion (41) has the press section moving radially (a) along described feed liquor syringe needle (21), (a) has release position and pressing position in this press section, in described release position, the described other end of described extrusion (41) approaches the root of described feed liquor syringe needle (21), and described press section (a) is away from described feed liquor syringe needle (21), at described pressing position, described press section (a) approaches described feed liquor syringe needle (21), and the described other end of described extrusion (41) approaches the liquid feeding end of described feed liquor syringe needle (21).
2. feed liquor needle assembly according to claim 1, it is characterized in that, described extrusion (41) comprises the first bar (411) and the second bar (412), the first end of described the first bar (411) is hinged on the described root of described feed liquor syringe needle (21), the first end of the second end of described the first bar (411) and described the second bar (412) is hinged, the second end of described the second bar (412) slides along described feed liquor syringe needle (21), and described press section (a) is formed on the pin joint place between described the first bar (411) and described the second bar (412).
3. feed liquor needle assembly according to claim 1, is characterized in that, the described other end of described extrusion (41) is connected with ring-shaped article (42), and this ring-shaped article (42) is set on described feed liquor syringe needle (21) movably.
4. feed liquor needle assembly according to claim 2, is characterized in that, described second end of described the second bar (412) is hinged with ring-shaped article (42), and this ring-shaped article (42) is set on described feed liquor syringe needle (21) movably.
5. feed liquor needle assembly according to claim 4, it is characterized in that, described extrusion (41) is two groups and is arranged on symmetrically the both sides of described feed liquor syringe needle (21), and described second end of described the second bar (412) that is positioned at both sides is hinged with described ring-shaped article (42) respectively.
6. feed liquor needle assembly according to claim 1, is characterized in that, described feed liquor needle assembly also comprises the elastic component (5) towards extrusion (41) described in described release position bias voltage.
7. feed liquor needle assembly according to claim 2, it is characterized in that, described feed liquor needle assembly also comprises the elastic component (5) towards extrusion (41) described in described release position bias voltage, this elastic component (5) is for being positioned at the extension spring below described press section (a), and the two ends of this extension spring connect respectively described the first bar (411) and described the second bar (412).
8. an infusion set, comprise infusion vessel (1) and transfer line (2), described infusion vessel (1) has liquid outlet (11), described transfer line (2) has the feed liquor needle assembly for inserting described liquid outlet (11), it is characterized in that, described feed liquor needle assembly is according to the feed liquor needle assembly described in any one in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723844.XU CN203619993U (en) | 2013-11-15 | 2013-11-15 | Liquid inlet needle head component and infusion suite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723844.XU CN203619993U (en) | 2013-11-15 | 2013-11-15 | Liquid inlet needle head component and infusion suite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203619993U true CN203619993U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723844.XU Expired - Fee Related CN203619993U (en) | 2013-11-15 | 2013-11-15 | Liquid inlet needle head component and infusion suite |
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| Country | Link |
|---|---|
| CN (1) | CN203619993U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017118254A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion connector, and infusion tube and infusion device provided with infusion connector |
| CN109224186A (en) * | 2018-11-22 | 2019-01-18 | 包洪伟 | A kind of pin type positive pressure transfusion connector |
| CN111012663A (en) * | 2019-12-20 | 2020-04-17 | 山西医科大学 | Liquid medicine transfer adapter |
-
2013
- 2013-11-15 CN CN201320723844.XU patent/CN203619993U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017118254A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion connector, and infusion tube and infusion device provided with infusion connector |
| CN109224186A (en) * | 2018-11-22 | 2019-01-18 | 包洪伟 | A kind of pin type positive pressure transfusion connector |
| CN111012663A (en) * | 2019-12-20 | 2020-04-17 | 山西医科大学 | Liquid medicine transfer adapter |
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