CN206138405U - Syringe needle dispenses with one -way filtration - Google Patents
Syringe needle dispenses with one -way filtration Download PDFInfo
- Publication number
- CN206138405U CN206138405U CN201620505974.XU CN201620505974U CN206138405U CN 206138405 U CN206138405 U CN 206138405U CN 201620505974 U CN201620505974 U CN 201620505974U CN 206138405 U CN206138405 U CN 206138405U
- Authority
- CN
- China
- Prior art keywords
- liquid
- dividing plate
- needle
- drawing liquid
- batching pig
- Prior art date
- 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- Withdrawn - After Issue
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Abstract
The utility model relates to a syringe needle dispenses with one -way filtration, 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 one -way filtration 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
Technical field
This utility model is related to a kind of safe medical needling instrument, particularly a kind of dispensation injection needle with unidirectional filtration.
Background technology
At present, venous transfusion and injection are treatment meanss the most frequently used in medical treatment.Infused
Before, it is often necessary to which some powder are formulated together with liquid of glucose or liquor.Specifically
Operational approach be：Syringe is inserted in medicinal liquid bottle and extracts a small amount of medicinal liquid；Then note is extracted
Emitter is simultaneously inserted in powdered medicine bottle, and liquid medicine injection is entered in powdered medicine bottle；Treat that medicated powder is completely dissolved with medicinal liquid
Afterwards, then extract out mixed liquor injection infusion bottle or direct suction injection tube in.
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 unidirectional filtration for pushing away liquid.
To achieve these goals, the utility model discloses a kind of dispensation injection needle with unidirectional filtration, 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 unidirectional filtration 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
Accompanying drawing 1 is this utility model specific embodiment stereoscopic structural representation；
Accompanying drawing 2 is this utility model specific embodiment front view；
Accompanying drawing 3 is the A-A structure sectional views of accompanying drawing 2；
Accompanying drawing 4 is the I portions partial enlarged drawing of accompanying drawing 3；
Accompanying drawing 5 is one of this utility model specific embodiment exploded structural representation；
Accompanying drawing 6 is the two of this utility model specific embodiment exploded structural representation；
Accompanying drawing 7 is one of this utility model defecator specific embodiment exploded structural representation；
Accompanying drawing 8 is the two of this utility model defecator specific embodiment exploded structural representation；
Accompanying drawing 9 is this utility model defecator specific embodiment antero-lateral perspective structural representation；
Accompanying drawing 10 is this utility model defecator specific embodiment rear perspective structural representation；
Accompanying drawing 11 is this utility model defecator specific embodiment front view；
Accompanying drawing 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 unidirectional filtration 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
Mouth end is provided 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
On mouth.
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 unidirectional filtration 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 passes through and pushes away liquid back cavity 3023 and push away liquid passage, then pushes away liquid list through front end
To valve, release from needle tubing 1 and complete injection.
Claims (2)
1. a kind of dispensation injection needle with unidirectional filtration, 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；Drawing liquid one-way valve structures are provided with the drawing liquid passage, the port of export of the drawing liquid passage sets
There is filter membrane；The defecator includes batching pig, batching pig frame and filter membrane, and the batching pig is the cylindrical shape being open in front and back
Component, centre is provided with axial dividing plate and inner chamber is separated into into left chamber and right chamber, the left chamber be provided with one be obliquely installed it is left oblique every
Plate, one end of the left oblique dividing plate is connected with axial dividing plate towards one end of needle tubing, and the other end of left oblique dividing plate is to left chamber
Sidewall slope connects and extends to the other end of batching pig, the sky between the left oblique dividing plate, left chamber side wall and axial dividing plate
Between constitute it is described push away liquid passage, the left oblique dividing plate is provided with penetration outer end and pushes away cutting for liquid passage with the junction of axial direction dividing plate
Seam pushes away liquid check valve described in constituting；The right chamber is provided with a right oblique dividing plate being obliquely installed, one end of the right oblique dividing plate
It is connected with one end of axial dividing plate dorsad needle tubing, the other end of right oblique dividing plate connects and extend to isolation to right chamber sidewall slope
The other end of plug, the space between the right oblique dividing plate, right chamber side wall and axial dividing plate constitutes the drawing liquid passage, the right side
Oblique dividing plate is provided with penetration outer end and constitutes the drawing liquid check valve with the joint-cutting of drawing liquid passage with the junction of axial dividing plate；It is described
Batching pig is integrally made up of soft elastic material；The batching pig frame is similarly the cylindrical structural member being open in front and back, the isolation
The endoporus of plug frame matches with the external diameter of batching pig, and the batching pig is arranged in batching pig frame, and the lateral wall of the batching pig
It is liquid-tight with the medial wall of batching pig frame to be affixed setting, in the batching pig frame longitudinal baffle is additionally provided with axial dividing plate near rear end
The back cavity of the batching pig frame is separated into and pushes away liquid back cavity and drawing liquid back cavity by liquid-tight connection, described to push away liquid back cavity and drawing liquid back cavity point
Not with push away liquid passage and drawing liquid passage UNICOM, the filter membrane is enclosed in the import of drawing liquid back cavity.
2. the dispensation injection needle with unidirectional filtration according to claim 1, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505974.XU CN206138405U (en) | 2016-05-27 | 2016-05-27 | Syringe needle dispenses with one -way filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505974.XU CN206138405U (en) | 2016-05-27 | 2016-05-27 | Syringe needle dispenses with one -way filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206138405U true CN206138405U (en) | 2017-05-03 |
Family
ID=58616172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620505974.XU Withdrawn - After Issue CN206138405U (en) | 2016-05-27 | 2016-05-27 | Syringe needle dispenses with one -way filtration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206138405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919808A (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 one-way filtration structure |
-
2016
- 2016-05-27 CN CN201620505974.XU patent/CN206138405U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919808A (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 one-way filtration structure |
| CN105919808B (en) * | 2016-05-27 | 2018-08-24 | 浙江康德莱医疗器械股份有限公司 | Dispensation injection needle with unidirectional filtration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20180824 |