CN206534959U - A kind of stopcock formula filtering injection needle with passage - Google Patents
A kind of stopcock formula filtering injection needle with passage Download PDFInfo
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- CN206534959U CN206534959U CN201621179081.7U CN201621179081U CN206534959U CN 206534959 U CN206534959 U CN 206534959U CN 201621179081 U CN201621179081 U CN 201621179081U CN 206534959 U CN206534959 U CN 206534959U
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- passage
- spheroid
- channel
- housing
- injection needle
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- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000002347 injection Methods 0.000 title claims abstract description 28
- 238000001914 filtration Methods 0.000 title claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 16
- 241001149930 Protura <class> Species 0.000 claims abstract description 11
- 239000003814 drug Substances 0.000 abstract description 13
- 229940079593 drug Drugs 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 25
- 238000002360 preparation method Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 238000005213 imbibition Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003182 parenteral nutrition solution Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model provides a kind of stopcock formula filtering injection needle with passage, including draw point and needle stand, draw point is arranged on the front end of needle stand, the rear end of needle stand is connected on syringe conehead, four-way rotary valve is set in needle stand, the four-way rotary valve includes housing, the two ends of housing are connected with syringe and draw point respectively, it is rotatable in housing to be provided with spheroid, cross passage is provided with spheroid, a channel interior is vertically provided with filter membrane in cross passage, hull outside sets rotation head, rotation head is connected on spheroid lateral wall, provided with the Five-channel being connected with cross channel center in spheroid, the housing sidewall is provided with the outlet passageway being engaged with Five-channel, provided with vertically provided with hydrophobic membrane in outlet passageway.The beneficial effects of the utility model are that medical filtration is complete, can exempt from drug waste Quick air-discharge, safely and fast make up a prescription, simple to operate, easy to use, safe.
Description
Technical field
The utility model is related to syringe, and specifically a kind of stopcock formula filtering injection needle with passage belongs to
Medicine equipment articles for use.
Background technology
It is well known that be encapsulated at present the injection of Clinical practice in vial more, with the syringe needle of syringe prick rubber stopper or
When vial extraction decoction is cut with emery wheel, bottle stopper material bits or glass powder can enter in parenteral solution.Traditional syringe does not have
There is filtering function, these impurity can be extracted into syringe when extracting liquid medicine and direct injection is to patient, so as to induce quiet
The diseases such as arteries and veins inflammation.
Patent CN103721322A, discloses a kind of filter-type syringe, including syringe and filtering injection needle, the note
Penetrate pin to be made up of needle tubing and needle stand, needle tubing is arranged on the front end of upper needle stand, the rear end of lower needle stand is connected on the conehead of syringe,
The front end of lower needle stand combines to form imbibition entrance with upper needle stand and injection is exported, and is provided with check-valves on lower needle stand, check-valves exists
The imbibition direction of imbibition entrance and the injection direction of injection outlet are opened, and injection is provided with filter in outlet.Due in needle stand
Feed pathway and liquid outlet channel are designed in limited physical dimension simultaneously, cause two passages all narrow, and check-valves is deposited
Obstacle is being formed before liquid passage is crossed, liquid extracting and pushing resistance can be influenceed, is causing liquid extracting and pushing to be exerted oneself all more conventional common
Injection needle significantly increases, and narrow and small by covering filter membrane again during drawing liquid, enters flow velocity slowly, adds medical personnel's
Working strength and working time, cause clinic can not receive application.Furthermore, when drawing liquid is with liquid is pushed away, will first wash check-valves open
Liquid passage was formed, once washing passage open, moment resistance diminishes, especially when pushing away liquid injection, it is impossible to control injection speed, easily
Patient is damaged.Furthermore, the feed liquor of check-valves, which stops liquid structure and going out liquid, stops feed liquor structural integrity, therefore in drawing liquid,
Feed liquor, which stops liquid structure and packing up, can pull out liquid to stop feed liquor structure, cause liquid outlet to open, cause liquid can be from non-filtered passage
Into in syringe so that liquid impurity is not filtered completely, causes product design concept to lose meaning.
With the progress of pharmaceutical technology, has there is the medicine of different physical characteristics in clinic at present, such as hypodermic part
It is the stability of more preferable holding medicine as long as medicine powder is during, it is many using vacuum packaging.Clinical injection powder medicine
Before, need first to be prepared with physiological saline solution, i.e., syringe first extracts physiological saline injection powder prescription glass, is still in apothecary jar now
Negative pressure state, if directly extracting, decoction is relatively difficult, and clinic solution is to pull up syringe needle tube at present, is passed through inside and outside medicine bottle
Syringe needle formation passage so that recover in medicine bottle to atmospheric pressure state, now extract decoction equivalent air with syringe needle tube and inject
After in medicine bottle, extract decoction and be subcutaneously injected.The air that this clinical manipulation is present in risk, ward directly contacts decoction, deposits
It is that the pollutants such as the microorganism in air incorporate decoction, injects human body, patient can be damaged.Meanwhile, before hypodermic injection,
Medical personnel want the air in first emptying syringe, because injector syringe internal diameter is larger, and liquid outlet is in syringe central part,
And bubble is easily present in the edge of syringe, it is difficult to which smoothly emptying bubble, could be by gas, it is necessary to the continuous springing syringe of medical personnel
Bubble discharge, it is more time-consuming, increase the time of compounding of medical personnel, while certain decoction can be discharged while exhaust,
Cause the waste of medicine.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, easy to operate, safe a kind of with passage
Stopcock formula filters injection needle, is especially suitable for Clinical practice.
The technical solution of the utility model is：
A kind of stopcock formula filtering injection needle with passage, including draw point and needle stand, draw point are arranged on the front end of needle stand,
The rear end of needle stand is connected on syringe conehead, and four-way rotary valve is set in needle stand, and the four-way rotary valve includes housing, housing
Two ends be connected respectively with syringe and draw point, it is rotatable in housing to be provided with spheroid, cross passage, cross are provided with spheroid
A channel interior is vertically provided with filter membrane in passage, and hull outside sets rotation head, and rotation head is connected on spheroid lateral wall, the spheroid
It is interior provided with the Five-channel being connected with cross channel center, the housing sidewall is provided with the outlet being engaged with Five-channel
Provided with vertically provided with hydrophobic membrane in passage, outlet passageway.
The utility model be provided with Five-channel, when using will draw point insert flask for medicinal preparations in, rotation rotation head make Five-channel with
The draw point of needle stand front end is engaged, at this moment, and one in cross passage is engaged without the passage of filter membrane with outlet passageway, can
Air pressure in equilibrium agent bottle, makes the gas in flask for medicinal preparations be discharged by the hydrophobic membrane of outlet passageway.
The rotation head includes connecting portion and handle, and one end of connecting portion is connected with the lateral wall of spheroid, connecting portion it is another
One end is stretched out housing and is connected with handle.
The connecting portion is perpendicular to plane where cross passage, and the handle and connecting portion are perpendicular.
The Five-channel is arranged on the angular bisector of two adjacent passages of cross passage, the outlet passageway and steel
Angle between pin is 45 °.
The Five-channel is arranged on cross passage adjacent two and is not provided with the angular bisector of the passage of filter membrane.
Rotation rotation head makes Five-channel be engaged with the syringe conehead of needle stand rear end, and one of cross passage without filter
The passage of film is engaged with outlet passageway, so can be drawn into outside air in syringe by outlet passageway.
Rotation rotation head makes in cross passage respectively with draw point and syringe conehead to be connected without the passage two ends of filter membrane,
Air in syringe can be released by draw point, decoction can also be drawn into syringe from flask for medicinal preparations.
Rotation rotation head makes the passage two ends with filter membrane in cross passage be connected respectively with draw point and syringe conehead, can
By syringe inner liquid medicine by being discharged after filtering from draw point.
The outlet passageway includes Part I and Part II, and one end of Part I is connected with hull outside wall,
The other end of Part I is connected with Part II, and the internal diameter of Part II is more than or equal to the external diameter of Part I, described
Hydrophobic membrane is ultrasonically welded within Part I other end end, and the diameter of hydrophobic membrane is equal to the internal diameter of Part II.
Provided with columnar fixed plug inside the Part II, the length of the fixed plug is equal to the length of Part II
Degree, the internal diameter of the fixed plug is less than or equal to the internal diameter of Part I, and the external diameter of the fixed plug is equal to the interior of Part II
Footpath.
The utility model has the advantages and positive effects of：Due to using air in above-mentioned technical proposal, syringe to arrange
Go out and balance air pressure in flask for medicinal preparations and more facilitate；With simple in construction, easy to operate, medical filtration is complete, safe, clinic
Easy to use the advantages of.
Brief description of the drawings
Fig. 1 is a kind of stopcock formula filtering injection needle cross-sectional view with passage of the utility model
Fig. 2 is a kind of stopcock formula filtering injecting head structure schematic diagram with passage of the utility model
In figure：
1st, draw point 2, needle stand 3, housing 4, spheroid 5, cross passage
6th, first 7, Five-channel 8, filter membrane 9, outlet passageway 10, hydrophobic membrane are revolved
11st, handle 12, connecting portion 13, Part I 14, Part II 15, fixed plug
Embodiment
As shown in figure 1, a kind of stopcock formula filtering injection needle with passage of the utility model, including draw point 1 and needle stand
2, draw point 1 is arranged on the front end of needle stand 2, and the rear end of needle stand 2 is connected on syringe conehead, and four-way rotary valve is set in needle stand 2,
Four-way rotary valve includes housing 3, and the two ends of housing 3 are connected with syringe and draw point 1 respectively, rotatable in housing 3 to be provided with
Provided with cross passage 5 in spheroid 4, spheroid 4, a channel interior is vertically provided with outside filter membrane 8, housing 3 and sets rotation in cross passage 5
First 6, rotation first 6 is connected on the lateral wall of spheroid 4, provided with the Five-channel 7 being connected with the center of cross passage 5, housing in spheroid 4
3 side walls are provided with the outlet passageway 9 being engaged with Five-channel 7, outlet passageway 9 provided with vertically provided with hydrophobic membrane 10.
As shown in Fig. 2 rotation first 6 includes connecting portion 12 and handle 11, one end of connecting portion 12 is connected with the lateral wall of spheroid 4
Connect, the other end of connecting portion 12 stretches out housing 3 and is connected with handle 11.Further, connecting portion 12 is perpendicular to the institute of cross passage 5
In plane, handle 11 and connecting portion 12 are perpendicular.
Five-channel 7 is on the angular bisector of two adjacent passages of cross passage 5, between outlet passageway 9 and draw point 1
Angle is 45 °.
Further, Five-channel 7 is arranged on the angle bisection that cross passage 5 adjacent two is not provided with the passage of filter membrane
On line.
As shown in figure 1, outlet passageway 9 includes Part I 13 and Part II 14, one end and the housing 3 of Part I 13
Lateral wall is connected, and the other end of Part I 13 is connected with Part II 14, and the internal diameter of Part II 14 is more than or equal to
The external diameter of Part I 13, hydrophobic membrane 10 is ultrasonically welded within the other end end of Part I 13, and the diameter of hydrophobic membrane 10 is equal to the
The internal diameter of two parts 14.
, can be inside Part II 14 provided with columnar fixed plug in order to further increase the stability of hydrophobic membrane 10
15, the length of fixed plug 15 is equal to the length of Part II 14, and the internal diameter of fixed plug 15 is less than or equal to the interior of Part I 13
Footpath, the external diameter of fixed plug 15 is equal to the internal diameter of Part II 14.So by the end of fixed plug 15 by hydrophobic membrane 10 firmly
Pressing is fixed on the other end end of Part I 13, when discharge gas pressure is excessive, is difficult to damage hydrophobic membrane 10, causes
Decoction is revealed.
The course of work of this example：
The utility model according to the personal operating habit of medical personnel in use, can voluntarily select drawing liquid filtering to push away liquid not
Filtering, or drawing liquid do not filter and push away liquid filtering.Draw point 1 is inserted in flask for medicinal preparations when using, the handle 11 of rotation rotation first 6 makes the 5th to lead to
Road 7 is engaged with the draw point 1 of the front end of needle stand 2, at this moment, one in cross passage 5 without filter membrane 8 passage and outlet passageway
9 are engaged, can equilibrium agent bottle in air pressure, the gas in flask for medicinal preparations is discharged by the hydrophobic membrane 10 of outlet passageway 9.
The handle 11 of rotation rotation first 6 is engaged Five-channel 7 and the syringe conehead of the rear end of needle stand 2, cross passage 5
One passage without filter membrane is engaged with outlet passageway 9, so by outlet passageway 9 outside air can be drawn into note
In emitter.
Rotation rotation first 6 handle 11 make in cross passage 5 without filter membrane passage two ends respectively with draw point 1 and syringe
Conehead is connected, and air in syringe can be released by draw point 1, decoction can also be drawn into syringe from flask for medicinal preparations
In.
Rotation rotation first 6 handle 11 make in cross passage 5 with filter membrane 8 passage two ends respectively with draw point 1 and syringe
Conehead is connected, can be by syringe inner liquid medicine by being discharged after filtering from draw point 1.
One embodiment of the present utility model is described in detail above, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope
Equivalent change with improve etc., all should still belong within patent covering scope of the present utility model.
Claims (7)
1. a kind of stopcock formula filtering injection needle with passage, including draw point and needle stand, draw point are arranged on the front end of needle stand, pin
The rear end of seat is connected on syringe conehead, and four-way rotary valve is set in needle stand, and the four-way rotary valve includes housing, housing
Two ends are connected with syringe and draw point respectively, and rotatable be provided with spheroid, spheroid is provided with cross passage in housing, and cross leads to
A channel interior is vertically provided with filter membrane in road, and hull outside sets rotation head, and rotation head is connected on spheroid lateral wall, and its feature exists
In：Provided with the Five-channel being connected with cross channel center in the spheroid, the housing sidewall is provided with and Five-channel
Provided with vertically provided with hydrophobic membrane in the outlet passageway being engaged, outlet passageway.
2. a kind of stopcock formula filtering injection needle with passage according to claim 1, it is characterised in that：The rotation head
Including connecting portion and handle, one end of connecting portion is connected with the lateral wall of spheroid, and the other end of connecting portion stretches out housing and hand
Handle is connected.
3. a kind of stopcock formula filtering injection needle with passage according to claim 2, it is characterised in that：The connection
Portion is perpendicular to plane where cross passage, and the handle and connecting portion are perpendicular.
4. a kind of stopcock formula filtering injection needle with passage according to claim 1-3 any one, its feature exists
In：The Five-channel is arranged on the angular bisector of two adjacent passages of cross passage, the outlet passageway and draw point it
Between angle be 45 °.
5. a kind of stopcock formula filtering injection needle with passage according to claim 4, it is characterised in that：Described 5th
Passage is arranged on cross passage adjacent two and is not provided with the angular bisector of the passage of filter membrane.
6. a kind of stopcock formula filtering injection needle with passage according to claim 5, it is characterised in that：The outlet
Passage includes Part I and Part II, and one end of Part I is connected with hull outside wall, the other end of Part I
It is connected with Part II, the internal diameter of Part II is more than or equal to the external diameter of Part I, the hydrophobic membrane is ultrasonically welded within
Part I other end end, the diameter of hydrophobic membrane is equal to the internal diameter of Part II.
7. a kind of stopcock formula filtering injection needle with passage according to claim 6, it is characterised in that：Described second
Partial interior is filled in provided with columnar fixation, and the length of the fixed plug is equal to the length of Part II, and it is interior that the fixation is filled in
Footpath is less than or equal to the internal diameter of Part I, and the external diameter of the fixed plug is equal to the internal diameter of Part II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179081.7U CN206534959U (en) | 2016-11-03 | 2016-11-03 | A kind of stopcock formula filtering injection needle with passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179081.7U CN206534959U (en) | 2016-11-03 | 2016-11-03 | A kind of stopcock formula filtering injection needle with passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206534959U true CN206534959U (en) | 2017-10-03 |
Family
ID=59938305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179081.7U Active CN206534959U (en) | 2016-11-03 | 2016-11-03 | A kind of stopcock formula filtering injection needle with passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206534959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674495A (en) * | 2018-08-01 | 2019-04-26 | 浙江三创生物科技有限公司 | Medication and its device |
| CN110353991A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of injection precise filtering device and its filter method |
-
2016
- 2016-11-03 CN CN201621179081.7U patent/CN206534959U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674495A (en) * | 2018-08-01 | 2019-04-26 | 浙江三创生物科技有限公司 | Medication and its device |
| CN111065433A (en) * | 2018-08-01 | 2020-04-24 | 浙江三创生物科技有限公司 | Method and apparatus for administering a drug |
| CN110353991A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of injection precise filtering device and its filter method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |