CN206102975U - Two -way filtration of safe type syringe needle that dispenses - Google Patents
Two -way filtration of safe type syringe needle that dispenses Download PDFInfo
- Publication number
- CN206102975U CN206102975U CN201620503537.4U CN201620503537U CN206102975U CN 206102975 U CN206102975 U CN 206102975U CN 201620503537 U CN201620503537 U CN 201620503537U CN 206102975 U CN206102975 U CN 206102975U
- Authority
- CN
- China
- Prior art keywords
- liquid
- batching pig
- needle
- drawing liquid
- defecator
- 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- Withdrawn - After Issue
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a two -way filtration of safe type syringe needle that dispenses, 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, the entry end and the drawing liquid passageway exit end that push away the liquid passageway all are equipped with filtration membrane, be equipped with drawing liquid check valve mechanism in the drawing liquid passageway, it pushes away liquid check valve structure to push away to be equipped with in the liquid passageway. This two -way filtration of safe type syringe needle that dispenses the drawing liquid when pushing away liquid, the liquid medicine respectively through the drawing liquid passageway with push away liquid channel flow, is crossed the impurity that is filtered off at the drawing liquid in -process and is kept apart between the filtration membrane of the drawing liquid check valve mechanism of drawing liquid channel -inlet end and exit end, and pushing away the liquid in -process, the impurity of being crossed in the syringe that filters off is being pushed away liquid channel -inlet end by the filtration membrane isolation, has guaranteed the drawing liquid and has pushed away liquid double filtration, safe and reliable more.
Description
Technical field
This utility model is related to a kind of safe medical needling instrument, the bi-directional filtered dispensation injection needle of particularly a kind of safety.
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 bi-directional filtered dispensation injection needle of safety for pushing away liquid.
To achieve these goals, the utility model discloses a kind of bi-directional filtered dispensation injection needle of safety, including pin
Pipe, needle stand and defecator, needle tubing is fixed on the front end of needle stand, it is characterised in that：It was provided with the medicine liquid channel of the needle stand
Filter device, is provided with mutually isolated drawing liquid passage and pushes away liquid passage in the defecator, drawing liquid passage and push away entering for liquid passage
Outlet is connected with medicine liquid channel, the port of export of the drawing liquid passage and pushes away the arrival end of liquid passage and is equipped with filter membrane, described
Be provided with drawing liquid one-way valve mechanism in drawing liquid passage, it is described push away to be provided with liquid passage push away liquid one-way valve structures.
Compared with prior art, the bi-directional filtered dispensation injection needle of this utility model safety is in drawing liquid and when pushing away liquid, medicine
Liquid by drawing liquid passage and pushes away the flowing of liquid passage respectively, and the impurity being filtered out during drawing liquid is isolated in drawing liquid passage and enters
Between the drawing liquid one-way valve mechanism and the filter membrane of the port of export at mouth end；And during liquid is pushed away, in the syringe being filtered out
Impurity is isolated in by filter membrane and pushes away liquid channel entrance end, it is ensured that drawing liquid is filtered with liquid dual is pushed away, more safe and reliable.
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 defecator specific embodiment front side structure schematic diagram；
Accompanying drawing 3 is this utility model defecator specific embodiment rear structure schematic diagram；
Accompanying drawing 4 is one of this utility model defecator specific embodiment exploded structural representation；
Accompanying drawing 5 is the two of this utility model defecator specific embodiment exploded structural representation；
Accompanying drawing 6 is this utility model specific embodiment side structural representation；
Accompanying drawing 7 is the A-A structure sectional views of accompanying drawing 6；
Accompanying drawing 8 is the I portions partial enlarged drawing of accompanying drawing 7；
Accompanying drawing 9 is one of this utility model specific embodiment exploded structural representation；
Accompanying drawing 10 is the two of this utility model specific embodiment exploded structural representation.
Specific embodiment
As shown in Fig. 1,9,10, the bi-directional filtered dispensation injection needle of safety 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 take out
The port of export of liquid passage and push away the arrival end of liquid passage and be equipped with filter membrane 303, in the drawing liquid passage drawing liquid check valve is provided with
Mechanism, it is described push away to be provided with liquid passage push away liquid one-way valve structures, drawing liquid one-way valve mechanism and push away liquid one-way valve structures and can arrange
Any suitable position in the channel.
As shown in Figure 2-5, in this specific embodiment, the defecator 3 includes batching pig 301, batching pig frame 302 and mistake
Filter membrane 303, the batching pig 301 is the cylindrical structural member being open in front and back, and centre is provided with lateral partitions 3011 and is separated into inner chamber
Ante-chamber 3012 and back cavity 3013, the batching pig 301 is made up of soft elastic material, such as medical grade rubber or silica gel；The isolation
Plug frame 302 be similarly the cylindrical structural member being open in front and back, formed by plastic injection, the endoporus of the batching pig frame 302 with isolate
The external diameter of plug 301 matches, and the batching pig 301 is arranged in batching pig frame 302, and in the batching pig frame 302 longitudinal direction is additionally provided with
The back cavity 3013 of the batching pig 301 is separated into left back chamber 3013a and right back cavity 3013b, the batching pig frame by dividing plate 3021
Drawing liquid guiding gutter 3022 is additionally provided with 302 medial wall and liquid guiding gutter 3023 is pushed away, the drawing liquid guiding gutter 3022 sets vertically
Put, from the end face of 302 ante-chamber of batching pig frame 3012 position corresponding with the left back chamber 3013a of the batching pig 301, institute are extended to
State drawing liquid guiding gutter 3022 and left back chamber 3013a constitutes the drawing liquid passage, the liquid guiding gutter 3023 that pushes away is axially disposed, from
The back cavity 3013 of batching pig frame 302 and the end face of the right back cavity 3013b opposite positions of the batching pig 301 extend to it is described every
It is described to push away liquid guiding gutter 3023 and ante-chamber 3012 is constituted and described pushes away liquid passage, institute from the corresponding position of ante-chamber 3012 of plug 301
State batching pig 301 lateral wall it is liquid-tight with the medial wall of batching pig frame 302 be affixed, and respectively with drawing liquid guiding gutter 3022 and push away liquid
Guiding gutter 3023 is engaged the composition drawing liquid one-way valve mechanism and pushes away liquid one-way valve structures, and the filter membrane 303 is enclosed in a left side
In the outlet of back cavity 3013a and the import of right back cavity 3013b.
As shown in Fig. 9,10, produce for convenience, the needle stand 2 is preferably made up of front needle seat 201 and rear needle stand 202, institute
The front end that needle tubing 1 is fixed on front needle seat 201 is stated, 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, as shown in figs 6-8.
The operation principle of the bi-directional filtered dispensation injection needle of intrinsic safety holotype is as follows：When taking out medicinal liquid, medicinal liquid was entered through needle tubing 1
The ante-chamber 3012 of batching pig 301 in the filter cavity volume of device 3, due to the obstruct of lateral partitions 3011, medicinal liquid can only be from drawing liquid guiding gutter
3022 flow into, and because the batching pig 301 is made up of soft elastic material, the pressure of medicinal liquid causes the left back chamber of batching pig 301
The concave side wall at 3013a positions, medicinal liquid is entered after left back chamber 3013a, then exports the filter membrane in exit through left back chamber 3013a
303 filter, medicinal liquid inhalation syringe, after stopping drawing liquid action, medicinal liquid distress resolves, and the left back chamber 3013a positions of batching pig 301
Side wall recover liquid-tight with the medial wall of batching pig frame 302 and be affixed, impurity is prevented from the left back chamber 3013a of the side of filter membrane 303
In；When pushing away medicinal liquid, medicinal liquid filters membrane filtration and enters right back cavity 3013b through the entrance of right back cavity 3013b, and medicinal liquid is led from liquid is pushed away
Chute 3023 flow to the position corresponding with the ante-chamber 3012 of the batching pig 301, the wall deformation indent of batching pig 301, medicinal liquid
Into after ante-chamber 3012, then release from needle tubing 1, complete injection, impurity is stopped in the syringe side of filter membrane 303.
Claims (2)
1. a kind of bi-directional filtered dispensation injection needle of safety, including needle tubing, needle stand and defecator, needle tubing is fixed on before needle stand
End, it is characterised in that：Defecator is provided with the medicine liquid channel of the needle stand, mutually isolated taking out is provided with the defecator
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, the drawing liquid passage goes out
Mouthful end and push away the arrival end of liquid passage and be equipped with filter membrane, drawing liquid one-way valve mechanism is provided with the drawing liquid passage, it is described to push away liquid
It is provided with passage and pushes away liquid one-way valve structures；The defecator includes batching pig, batching pig frame and filter membrane, and the batching pig is
The cylindrical structural member being open in front and back, centre is provided with lateral partitions and inner chamber is separated into into ante-chamber and back cavity, and the batching pig is by soft
Elastomeric material is made；The batching pig frame is similarly the cylindrical structural member being open in front and back, the endoporus of the batching pig frame with isolate
The external diameter of plug matches, and the batching pig is arranged in batching pig frame, be additionally provided with the batching pig frame longitudinal baffle by it is described every
Back cavity from plug is separated into left back chamber and right back cavity, drawing liquid guiding gutter is additionally provided with the medial wall of the batching pig frame and liquid is pushed away and is led
Chute, the drawing liquid guiding gutter is axially disposed, and from batching pig frame ante-chamber end face the left back chamber phase with the batching pig is extended to
Corresponding position, the drawing liquid guiding gutter and left back chamber constitute the drawing liquid passage；The liquid guiding gutter that pushes away is axially disposed, from
Batching pig frame back cavity extends to relative with the ante-chamber of the batching pig with the end face of the right back cavity opposite position of the batching pig
The position answered, described pushing away pushes away liquid passage described in liquid guiding gutter and ante-chamber composition, lateral wall and the batching pig frame of the batching pig
Medial wall is liquid-tight to be affixed, and respectively with drawing liquid guiding gutter and push away liquid guiding gutter and be engaged the composition drawing liquid one-way valve mechanism and push away
Liquid one-way valve structures, the filter membrane is enclosed in the outlet in left back chamber and the import of right back cavity.
2. the bi-directional filtered dispensation injection needle of safety according to claim 1, it is characterised in that：The needle stand is by front needle seat
Constitute with rear needle stand, 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 cavity volume, institute
State rear needle stand front end be again provided with cylinder open cavity volume, the front needle seat and rear needle stand cavity volume opening it is relative merge form
The cavity volume for being integrally formed needle stand, the front needle seat and rear needle stand merges composition defecator cavity volume, and the defecator is arranged on
In defecator cavity volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503537.4U CN206102975U (en) | 2016-05-27 | 2016-05-27 | Two -way filtration of safe type syringe needle that dispenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503537.4U CN206102975U (en) | 2016-05-27 | 2016-05-27 | Two -way filtration of safe type syringe needle that dispenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206102975U true CN206102975U (en) | 2017-04-19 |
Family
ID=58509410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620503537.4U Withdrawn - After Issue CN206102975U (en) | 2016-05-27 | 2016-05-27 | Two -way filtration of safe type syringe needle that dispenses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206102975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919807A (en) * | 2016-05-27 | 2016-09-07 | 浙江康德莱医疗器械股份有限公司 | Safe dispensing injection needle with bi-directional filtration function |
-
2016
- 2016-05-27 CN CN201620503537.4U patent/CN206102975U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919807A (en) * | 2016-05-27 | 2016-09-07 | 浙江康德莱医疗器械股份有限公司 | Safe dispensing injection needle with bi-directional filtration function |
| CN105919807B (en) * | 2016-05-27 | 2018-07-03 | 浙江康德莱医疗器械股份有限公司 | Safety-type bi-directional filtered dispensation injection needle |
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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: 20170419 Effective date of abandoning: 20180703 |