CN206138406U - Syringe needle dispenses with two -way filtering capability - Google Patents

Syringe needle dispenses with two -way filtering capability Download PDF

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Publication number
CN206138406U
CN206138406U CN201620505987.7U CN201620505987U CN206138406U CN 206138406 U CN206138406 U CN 206138406U CN 201620505987 U CN201620505987 U CN 201620505987U CN 206138406 U CN206138406 U CN 206138406U
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CN
China
Prior art keywords
liquid
dividing plate
needle
drawing liquid
batching pig
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620505987.7U
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Chinese (zh)
Inventor
张谦
陈洪
陈云飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Kindly Medical Devices Co Ltd
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Zhejiang Kindly Medical Devices Co Ltd
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Priority to CN201620505987.7U priority Critical patent/CN206138406U/en
Application granted granted Critical
Publication of CN206138406U publication Critical patent/CN206138406U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a syringe needle dispenses with two -way filtering capability, including needle tubing, needle file and filter equipment, the front end at the needle file, its characterized in that are fixed to the needle tubing: be equipped with filter equipment among the medical liquid passage of needle file, being equipped with the drawing liquid passageway of mutual isolation among the filter equipment and pushing away the liquid passageway, the drawing liquid passageway all is connected with medical liquid passage with the exit that push away the liquid passageway, it pushes away liquid check valve structure to push away to be equipped with in the liquid passageway, be equipped with drawing liquid check valve structure in the drawing liquid passageway, the exit end of drawing liquid passageway is equipped with filtration membrane. This syringe needle dispenses with two -way filtering capability the drawing liquid when pushing away liquid, the liquid medicine respectively through the drawing liquid passageway with push away liquid channel flow, and is crossed the impurity that filters off at the drawing liquid in -process and is kept apart in the drawing liquid passageway by filtration membrane, has guaranteed the drawing liquid and has pushed away the two -way all safety of liquid.

Description

Dispensation injection needle with bi-directional filtered function
Technical field
This utility model is related to a kind of safe medical needling instrument, particularly a kind of dispensation injection needle with bi-directional filtered function.
Background technology
At present, venous transfusion and injection are treatment meanss the most frequently used in medical treatment.Before being infused, it is often necessary to will Some powder are formulated together with liquid of glucose or liquor.Specifically operational approach is:Syringe is inserted in medicinal liquid bottle Extract a small amount of medicinal liquid;Then extract syringe and insert in powdered medicine bottle, liquid medicine injection is entered in powdered medicine bottle;Treat that medicated powder is complete with medicinal liquid After CL, then extract out in mixed liquor injection infusion bottle or direct suction injection tube.
But when stating Medicine adder for injection in actual use, during making up a prescription, when lysate or medicine in extraction ampulla bottle During liquid, some 3 one 5 microns granules are often produced in these conventional powder, the production of water medicament, storage and transportation, Such as crystalline solid microgranule, carbon black particle, further, since delineating bottleneck with grinding wheel, the glass fragment produced during bottleneck is cracked easy Fall in medicine bottle;Solid medicated powder, because the operating time is short, the deliquescent difference of solid medicated powder, there is part when dissolving is made up a prescription Grain fails dissolving, meanwhile, when drug feeding device punctures rubber, easily make rubber stopper damaged, produce rubber scraps and enter into the liquid.This Sample, when medicinal liquid is extracted using Medicine adder for injection, glass fragment, part medicated powder granule or rubber scraps are also drawn into.Giving When patient carries out venous transfusion or injection, these chips or granule are directly entered in blood of human body, can be blocked with blood circulation Blood vessel, to patient body harm, or even threat to life are brought.Therefore, need to filter Pharmaceutical during making up a prescription, to protect Card safety.Existing dispensation injection needle common practice is one defecator of setting in liquid-transport pipe-line(Such as filter membrane)To this A little solid medicated powder granules and rubber scraps etc. are filtered, and the dispensation injection needle of this structure can only be by solid medicated powder granule and rubber Glue chip etc. is blocked in defecator(Such as filter membrane)Side, if reversely injected, be blocked in defecator(As filtered Film)The particulate matter of side, will flow back, and to patient body harm is brought;Other are also additionally arranged check valve to prevent from flowing backwards, this A little needle sets are only applicable to extract liquid medicine dispensation, it is impossible to while be adapted to be reversed pushing away liquid.
The content of the invention
The purpose of this utility model is to provide a kind of simultaneously suitable for drawing liquid to overcome the deficiencies in the prior art With the dispensation injection needle with bi-directional filtered function for pushing away liquid.
To achieve these goals, the utility model discloses a kind of dispensation injection needle with bi-directional filtered function, bag Needle tubing, needle stand and defecator are included, needle tubing is fixed on the front end of needle stand, it is characterised in that:Set in the medicine liquid channel of the needle stand There is defecator, mutually isolated drawing liquid passage is provided with the defecator and liquid passage is pushed away, drawing liquid passage and push away liquid passage Import and export be connected with medicine liquid channel, it is described push away to be provided with liquid passage push away liquid one-way valve structures;It is provided with the drawing liquid passage Drawing liquid one-way valve structures, the port of export of the drawing liquid passage is provided with filter membrane.
Compared with prior art, this utility model has the dispensation injection needle of bi-directional filtered function in drawing liquid and pushes away liquid When, medicinal liquid respectively by drawing liquid passage and push away liquid passage flowing, and the impurity being filtered out during drawing liquid by filter membrane every From in drawing liquid passage, it is ensured that drawing liquid and to push away liquid two-way all safe.
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Description of the drawings
Fig. 1 is this utility model specific embodiment stereoscopic structural representation;
Fig. 2 is this utility model specific embodiment front view;
Fig. 3 is the A-A structure sectional views of accompanying drawing 2;
Fig. 4 is the I portions partial enlarged drawing of accompanying drawing 3;
Fig. 5 is one of this utility model specific embodiment exploded structural representation;
Fig. 6 is the two of this utility model specific embodiment exploded structural representation;
Fig. 7 is one of this utility model defecator specific embodiment exploded structural representation;
Fig. 8 is the two of this utility model defecator specific embodiment exploded structural representation;
Fig. 9 is this utility model defecator specific embodiment antero-lateral perspective structural representation;
Figure 10 is this utility model defecator specific embodiment rear perspective structural representation;
Figure 11 is this utility model defecator specific embodiment front view;
Figure 12 is the B-B structure sectional views of accompanying drawing 11.
Specific embodiment
As shown in figures 1 to 6, the dispensation injection needle with bi-directional filtered function includes needle tubing 1, needle stand 2 and defecator 3, pin Pipe 1 is fixed on the front end of needle stand 2, and defecator 3 is provided with the medicine liquid channel of the needle stand 2, and in the defecator 3 phase is provided with Mutually the drawing liquid passage of isolation and liquid passage is pushed away, drawing liquid passage and push away the import and export of liquid passage and be connected with medicine liquid channel, it is described to push away It is provided with liquid passage and pushes away liquid one-way valve structures;It is provided with drawing liquid one-way valve structures in the drawing liquid passage, the drawing liquid passage goes out Mouthful end and push away liquid channel entrance end and be equipped with filter membrane.
In this specific embodiment, as shown in Fig. 7,8 and Figure 11,12, the defecator 3 includes batching pig 301, batching pig Frame 302 and filter membrane 303, the batching pig 301 is the cylindrical structural member being open in front and back, and centre is provided with axial dividing plate 3011 will be interior Chamber is separated into left chamber and right chamber, and the left chamber is provided with a left oblique dividing plate 3012 being obliquely installed, the left oblique dividing plate 3012 One end be connected towards one end of needle tubing 1 with axial dividing plate 3011, the other end of left oblique dividing plate 3012 is to left chamber sidewall slope Connect and extend to the other end of batching pig 301, between the left oblique dividing plate 3012, left chamber side wall and axial dividing plate 3011 Space pushes away liquid passage described in constituting, and the left oblique dividing plate 3012 is provided with penetration outer end and pushes away with the junction of axial dividing plate 3011 The joint-cutting 3014 of liquid passage pushes away liquid check valve described in constituting;The right chamber is provided with a right oblique dividing plate 3013 being obliquely installed, institute The one end for stating one end of right oblique dividing plate 3013 and axial dividing plate 3011 dorsad needle tubing 1 is connected, right oblique dividing plate 3013 it is another Hold the other end for connecting and extending to batching pig 301 to right chamber sidewall slope, the right oblique dividing plate 3013, right chamber side wall and axle The junction of the drawing liquid passage, the right oblique dividing plate 3013 and axial dividing plate 3011 is constituted to the space between dividing plate 3011 It is provided with penetration outer end and constitutes the drawing liquid check valve with the joint-cutting 3014 of drawing liquid passage, the batching pig 301 is overall by soft bullet Property material is made.
As shown in Fig. 9,10, the batching pig frame 302 is similarly the cylindrical structural member being open in front and back, the batching pig frame 302 endoporus matches with the external diameter of batching pig 301, and the axial length of batching pig frame 302 is long more than the axial direction of batching pig 301 Degree, the batching pig 301 is arranged in batching pig frame 302, and the lateral wall of the batching pig 301 is interior with batching pig frame 302 Side wall is liquid-tight to be affixed setting, and longitudinal baffle is additionally provided with the axial liquid-tight company of dividing plate 3011 near rear end in the batching pig frame 302 Connect to be separated into the back cavity of the batching pig frame 302 and push away liquid back cavity 3023 and drawing liquid back cavity 3022, it is described to push away the He of liquid back cavity 3023 Drawing liquid back cavity 3022 respectively with push away liquid passage and drawing liquid passage UNICOM, the filter membrane 303 is enclosed in going out for drawing liquid back cavity 3022 Mouthful and push away in the import of liquid back cavity 3023.
As shown in figure 12, in order to reliably isolate and UNICOM, the axial dividing plate 3011 in the middle of the batching pig 301 Middle part is bent to form a platform 3015, the platform 3015 of the axial dividing plate 3011 preferably through in opposite direction twice 90 ° The groove 3016 matched with longitudinal baffle 3021, the longitudinal baffle are provided with the upper and two side correspondence position of batching pig 301 3021 front end fluid-tight engagements are plugged in groove 3016.
As shown in Figure 5,6, produce for convenience, the needle stand 2 is preferably made up of front needle seat 201 and rear needle stand 202, described Needle tubing 1 is fixed on the front end of front needle seat 201, and the rear end of the front needle seat 201 is provided with cylinder open cavity volume, the rear needle stand 202 front end is again provided with the cavity volume opening of cylinder open cavity volume, the front needle seat 201 and rear needle stand 202 with respect to merging The cavity volume of integral composition needle stand 2, the front needle seat 201 and rear needle stand 202 merges the cavity volume of defecator 3 for constituting cylinder, The internal diameter of the cavity volume of defecator 3 matches with the external diameter of batching pig frame 302, and the defecator 3 is arranged on the cavity volume of defecator 3 In, wherein, the outer wall of batching pig frame 302 is liquid-tight with the medial wall of the cavity volume of defecator 3 to be affixed.
This has the operation principle of the dispensation injection needle of bi-directional filtered function as follows:Due to push away liquid passage and drawing liquid passage into The little wedge shape in arrival end large outlet end is arranged, and batching pig 301 is made up of soft elastic material, and when taking out medicinal liquid, medicinal liquid is through needle tubing 1 Into in the batching pig 301 in the cavity volume of defecator 3, the pressure of medicinal liquid laterally pushes away liquid passage from the outer of left oblique dividing plate 3012 Pressure, makes to push away liquid closed check valve, and the pressure of medicinal liquid is from the outside side pressure of drawing liquid passage of right oblique dividing plate 3013, drawing liquid check valve Open, medicinal liquid can only be flowed into and into after drawing liquid back cavity 3022 from drawing liquid passage, then in the outlet of drawing liquid back cavity 3022 Filter membrane 303 is filtered, and medicinal liquid is inhaled into syringe, and impurity is hindered in drawing liquid back cavity 3022;When pushing away medicinal liquid, same principle is taken out Liquid closed check valve, pushes away the unlatching of liquid check valve, and medicinal liquid process pushes away the filtration entrance of entrance filter membrane 303 of liquid back cavity 3023 and pushes away liquid Back cavity 3023 and push away in liquid passage, then liquid check valve is pushed away through front end, release from needle tubing 1, if any impurity in syringe, impurity By resistance in syringe, injection is completed.

Claims (3)

1. a kind of dispensation injection needle with bi-directional filtered function, including needle tubing, needle stand and defecator, needle tubing is fixed on needle stand Front end, it is characterised in that:Defecator is provided with the medicine liquid channel of the needle stand, is provided with mutually isolated in the defecator Drawing liquid passage and push away liquid passage, drawing liquid passage and push away the import and export of liquid passage and be connected with medicine liquid channel, it is described to push away liquid passage In be provided with and push away liquid one-way valve structures;Be provided with drawing liquid one-way valve structures in the drawing liquid passage, the port of export of the drawing liquid passage and Push away liquid channel entrance end and be equipped with filter membrane.
2. the dispensation injection needle with bi-directional filtered function according to claim 1, it is characterised in that:The defecator Including batching pig, batching pig frame and filter membrane, the batching pig is the cylindrical structural member being open in front and back, and centre is provided with axial dividing plate Inner chamber is separated into into left chamber and right chamber, the left chamber is provided with a left oblique dividing plate being obliquely installed, the one of the left oblique dividing plate End is connected with axial direction dividing plate towards one end of needle tubing, the other end of left oblique dividing plate connect to left chamber sidewall slope and extend to every From the other end of plug, liquid passage is pushed away described in the space composition between the left oblique dividing plate, left chamber side wall and axial dividing plate, it is described Left oblique dividing plate and the junction of axial dividing plate be provided with penetration outer end with the joint-cutting for pushing away liquid passage constitute described in push away liquid check valve;Institute State right chamber and be provided with a right oblique dividing plate being obliquely installed, one end of one end of the right oblique dividing plate and axial dividing plate dorsad needle tubing Be connected, the other end of right oblique dividing plate connects and extend to the other end of batching pig to right chamber sidewall slope, the right side it is oblique every Space between plate, right chamber side wall and axial dividing plate constitutes the company of the drawing liquid passage, the right oblique dividing plate and axial dividing plate The place of connecing is provided with penetration outer end and constitutes the drawing liquid check valve with the joint-cutting of drawing liquid passage;The batching pig is overall by softer, elastic material Material is made;The batching pig frame is similarly the cylindrical structural member being open in front and back, and the endoporus of the batching pig frame is outer with batching pig Footpath matches, and the batching pig is arranged in batching pig frame, and the lateral wall of the batching pig is liquid-tight with the medial wall of batching pig frame Setting is affixed, longitudinal baffle and the liquid-tight connection of axial dividing plate are additionally provided with by the batching pig frame near rear end in the batching pig frame Back cavity be separated into and push away liquid back cavity and drawing liquid back cavity, it is described push away liquid back cavity and drawing liquid back cavity respectively with push away liquid passage and drawing liquid passage UNICOM, the filter membrane is enclosed in and pushes away in the import of liquid back cavity and the outlet of drawing liquid back cavity.
3. the dispensation injection needle with bi-directional filtered function according to claim 2, it is characterised in that:The needle stand is by front Needle stand and rear needle stand are constituted, and the needle tubing is fixed on the front end of front needle seat, and the rear end of the front needle seat is provided with cylinder open appearance Chamber, the front end of the rear needle stand is again provided with the cavity volume opening of cylinder open cavity volume, the front needle seat and rear needle stand and is involutory And form and be integrally formed needle stand, the cavity volume of the front needle seat and rear needle stand merges and constitutes defecator cavity volume, the defecator In being arranged on defecator cavity volume.
CN201620505987.7U 2016-05-27 2016-05-27 Syringe needle dispenses with two -way filtering capability Withdrawn - After Issue CN206138406U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620505987.7U CN206138406U (en) 2016-05-27 2016-05-27 Syringe needle dispenses with two -way filtering capability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620505987.7U CN206138406U (en) 2016-05-27 2016-05-27 Syringe needle dispenses with two -way filtering capability

Publications (1)

Publication Number Publication Date
CN206138406U true CN206138406U (en) 2017-05-03

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Application Number Title Priority Date Filing Date
CN201620505987.7U Withdrawn - After Issue CN206138406U (en) 2016-05-27 2016-05-27 Syringe needle dispenses with two -way filtering capability

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CN (1) CN206138406U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105919805A (en) * 2016-05-27 2016-09-07 浙江康德莱医疗器械股份有限公司 Dispensing injection needle with bi-directional filtration function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105919805A (en) * 2016-05-27 2016-09-07 浙江康德莱医疗器械股份有限公司 Dispensing injection needle with bi-directional filtration function
CN105919805B (en) * 2016-05-27 2018-08-21 浙江康德莱医疗器械股份有限公司 Dispensation injection needle with bi-directional filtered function

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Granted publication date: 20170503

Effective date of abandoning: 20180821