CN107158523A - A kind of syringe uses decoction macromolecule accurate filter - Google Patents
A kind of syringe uses decoction macromolecule accurate filter Download PDFInfo
- Publication number
- CN107158523A CN107158523A CN201710386375.XA CN201710386375A CN107158523A CN 107158523 A CN107158523 A CN 107158523A CN 201710386375 A CN201710386375 A CN 201710386375A CN 107158523 A CN107158523 A CN 107158523A
- Authority
- CN
- China
- Prior art keywords
- filter
- liquid outlet
- outlet channel
- macromolecule
- feed pathway
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3145—Filters incorporated in syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/19—Constructional features of carpules, syringes or blisters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7545—General characteristics of the apparatus with filters for solid matter, e.g. microaggregates
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Heart & Thoracic Surgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Decoction macromolecule accurate filter is used the invention provides a kind of syringe, including is arranged on the filter body being connected inside injection tube or with injection tube needle holder, described filter body front end is tapering point, and rear end is filter end；Described filter body be internally provided with a fluid passage, at least one be used for unidirectional drawing liquid feed pathway and at least one be used for unidirectional discharge opeing liquid outlet channel, fluid passage one end is connected with feed pathway, liquid outlet channel, fluid passage is centrally disposed along tapering point, and feed pathway and the liquid outlet channel other end are connected with filter end inner chamber；Check valve is provided with feed pathway and liquid outlet channel, liquid outlet channel is provided with filter membrane close to filter end one end.The problems such as these particulates are costly is filtered using precision infusion set, it is directly filtered particulate and precipitation when preparing liquid, reaches the effect of secondary filter, it is ensured that patient medication safety.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of syringe uses decoction macromolecule secondary filter
Device.
Background technology
During current Clinical practice liquid medicine applying, directly by syringe dosing or human body is injected into, do not injected
Medical filtration processing unit is carried out in the volume of device product.Being encapsulated in existing decoction in vial, with the syringe needle of syringe more
When pricking the rubber stopper of vial or vial extraction decoction is cut with emery wheel, the particulate such as bottle stopper material bits or glass powder is easily mixed into
In decoction；Further, since artificial medicine preservation is improper or the reason such as operational error is also easily caused decoction and produces particulate matter.
In dosing therapeutic process, the particulate for being visually difficult to find can be as the thick syringe needle of syringe adds infusion bottle (bag) with precipitation
In, cause infusion safety hidden danger.Again because common syringe body does not possess filtering function, these particulates will be together with decoction one
Rise and be injected into patient's body, so as to cause the irreversible injury of a variety of long-term hidings to the body of patient, the lighter may
The diseases such as inflammation of vein are induced, severe one is possibly even carcinogenic.When especially to children or neonate's medication, neonate is due to life
Reason factor, is more needed to carry out filtration treatment, but dosing can be had simultaneously by not having a kind of syringe of simple possible now
Carry out the function of medical filtration.
The content of the invention
To solve the problems, such as the technological deficiency of existing syringe presence, decoction high score is used the invention provides a kind of syringe
Sub- accurate filter.Not only cost is low for the syringe, and filtering safe is easy to use, during dosing, makes it when preparing liquid
Directly filtration particulate and precipitation, reach the effect of secondary filter, it is ensured that patient medication safety.
To reach above-mentioned purpose, the present invention uses following technological means：
A kind of syringe uses decoction macromolecule accurate filter, including：Be arranged on inside injection tube or with injection tube pin
The filter body of headstock connection, described filter body front end is tapering point, and rear end is filter end；Described filter sheet
Body be internally provided with a fluid passage, at least one be used for unidirectional drawing liquid feed pathway and at least one be used for unidirectional discharge opeing
Liquid outlet channel, fluid passage one end connects with feed pathway, liquid outlet channel, and fluid passage is centrally disposed along tapering point, enters
Liquid passage and the liquid outlet channel other end are connected with filter end inner chamber；Check valve is provided with feed pathway and liquid outlet channel, is gone out
Liquid passage is provided with filter membrane close to filter end one end.
Described check valve includes inlet, liquid outlet, ball valve and elasticity resistance piece；Inlet is connected with liquid outlet, and is entered
The diameter of liquid mouthful is less than the diameter of ball valve and liquid outlet, and ball valve gap is arranged in liquid outlet, and is pushed down by elasticity resistance piece, real
Existing liquid is from inlet toward liquid outlet one-way flow.
The quantity of described liquid outlet channel is one, and set along filter body axis；Feed pathway is multiple, and is entered
Liquid passage is centrosymmetric distribution.
When filter body is connected with injection tube needle holder, the connecting hole of described filter end is connected with needle holder, even
Connect hole and the shape of needle holder outer wall matches, tapering point is used for and syringe needle connection.
When filter body is arranged on inside injection tube, the size shape of described filter body and injection tube front end
Inner chamber matches, in tapering point insertion needle seat inner chamber, and injection tube inwall is tightly connected with filter body.
Described filter end inner chamber and the shape of the piston of injection rod front end matches.
Described filter membrane is nuclear pore membrane, poly (ether sulfone) film, polyester film or nylon membrane.
Described filter membrane pore size filter is 1.2~15 microns.
Described needle holder and tapering point are nipple or quick connector.
Relative and prior art, the present invention has advantages below：
The precise liquid medicine filter of the present invention, can be used for be placed in injection tube on syringe and uses, and pass through
Fluid passage, feed pathway and liquid outlet channel are internally provided with the use of medical filtration, filter body is carried out with injection tube,
Check valve is provided with feed pathway and liquid outlet channel, liquid outlet channel is provided with filter membrane close to injection tube inner chamber one end.Enter
Liquid passage is used for unidirectional drawing liquid, and liquid outlet channel is used for unidirectional discharge opeing, while carrying out filtering liquid medicine by filter membrane.The mistake of the present invention
Filter body assembling does not cause other workloads when using to user, and the mistake of decoction has been carried out while normally using
Filter.Not only cost is low, filtering safe, easy to use, during dosing, and the particulate for being visually difficult to find can be with syringe with precipitation
In thick syringe needle injection infusion bottle (bag), infusion safety hidden danger is caused, and these particulate expenses are filtered using precision infusion set
High the problems such as, it is directly filtered particulate and precipitation when preparing liquid, reach the effect of secondary filter, it is ensured that patient medication is pacified
Entirely.
Further, the centrally disposed advantage of liquid outlet channel is, decoction discharge is easy when center is extruded, discharge opeing extruding force
Small, filtering is abundant.When the distribution of feed pathway Central Symmetry can be easy to drawing liquid, progress is further separated into syringe, drawing liquid efficiency
It is high.
Further, the filter inside injection tube is fabricated structure；Can individually it be manufactured during manufacture, when using
It is combined again, is easy to manufacture and transports.
Brief description of the drawings
Fig. 1 is the accurate filter schematic diagram of embodiment 1；
Fig. 2 is accurate filter use state figure one；
Fig. 3 is the accurate filter schematic diagram of embodiment 2；
Fig. 4 is accurate filter use state figure two；
Fig. 5 is accurate filter use state figure three；
Fig. 6 be filter body along A-A to sectional drawing；
Wherein, 1 is filter body；2 be injection tube；3 be injection rod；4 be needle holder；5 be filter end；6 be tapering point；
1-1 is fluid passage；1-2 is feed pathway；1-3 is filter membrane, and 1-4 is liquid outlet channel, and 1-5 is elasticity resistance piece, and 1-6 is ball
Valve.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings, and the invention is not restricted to following examples.
Embodiment 1
As depicted in figs. 1 and 2, a kind of syringe accurate filter of the invention, including：Filter body 1, it is described
The front end of filter body 1 is the tapering point 6 for connecting needle, and rear end is the filter end 5 for connecting the needle holder 4 of injection tube 2；
Described filter body 1 be internally provided with a fluid passage 1-1, at least one be used for unidirectional drawing liquid feed pathway 1-2
It is used for the liquid outlet channel 1-3 of unidirectional discharge opeing, fluid passage 1-1 one end and feed pathway 1-2, liquid outlet channel 1-3 with least one
Connect, fluid passage 1-1 is centrally disposed along tapering point 6, in feed pathway 1-2 and the liquid outlet channel 1-3 other ends and filter end 5
Chamber is connected；Check valve is provided with feed pathway 1-2 and liquid outlet channel 1-3, liquid outlet channel 1-3 is set close to the one end of filter end 5
It is equipped with filter membrane 1-3.Feed pathway 1-2 and liquid outlet channel 1-3 check valve setting direction is opposite.The connecting hole of filter end 5 with
The shape of the outer wall of needle holder 4 matches.
As shown in Fig. 2 check valve includes inlet, liquid outlet, ball valve 1-6 and elasticity resistance piece 1-5；Inlet and liquid outlet
Connection, and the diameter of inlet is less than the diameter of ball valve 1-6 and liquid outlet, ball valve 1-6 gaps are arranged in liquid outlet, and are passed through
Elasticity resistance piece 1-5 is pushed down, and realizes liquid from inlet toward liquid outlet one-way flow.
Embodiment 2
As shown in Fig. 3, Fig. 4 and Fig. 5, a kind of syringe accurate filter, including：Filter body 1, described filtering
Device body 1 is arranged on inside injection tube 2, and size shape and the front end inner chamber of injection tube 2 of filter body 1 match, tapering point 6
In 4 inner chambers of insertion needle seat, and the inwall of injection tube 2 is tightly connected with filter body 1.The inner chamber of filter end 5 and the front end of injection rod 3
The shape of piston match.
Filter body 1 be internally provided with a fluid passage 1-1, at least one be used for unidirectional drawing liquid feed pathway 1-
2 are used for the liquid outlet channel 1-3 of unidirectional discharge opeing, fluid passage 1-1 one end and feed pathway 1-2, liquid outlet channel 1-3 with least one
Connect, fluid passage 1-1 is centrally disposed along tapering point 6, in feed pathway 1-2 and the liquid outlet channel 1-3 other ends and filter end 5
Chamber is connected；Check valve is provided with feed pathway 1-2 and liquid outlet channel 1-3, liquid outlet channel 1-3 is set close to the one end of filter end 5
It is equipped with filter membrane 1-3.Feed pathway 1-2 and liquid outlet channel 1-3 check valve setting direction is opposite.The connecting hole of filter end 5 with
The shape of the outer wall of needle holder 4 matches.
As shown in fig. 6, liquid outlet channel 1-3 quantity is one, and set along the axis of filter body 1；Feed pathway 1-2
To be multiple, and feed pathway 1-2 is centrosymmetric distribution.Advantage centrally disposed liquid outlet channel 1-3 is, medicine when center is extruded
Liquid discharge is easy, and discharge opeing extruding force is small, and filtering is abundant.When the distribution of feed pathway 1-2 Central Symmetries can be easy to drawing liquid, divided
Stream enters in syringe, drawing liquid efficiency high.
Filter membrane 1-3 is the medical grade materials such as nuclear pore membrane, poly (ether sulfone) film, polyester film or nylon membrane；Filter membrane 1-3 is filtered
Aperture is 1.2~15 microns.
Different syringe needles is used for convenience, and needle holder is nipple or quick connector.
As shown in Fig. 2 the present invention is in use, will first connect the screw thread of needle holder 4 of filter body 1 and the front end of injection tube 2
Connect, then injection rod 3 is inserted in injection tube 2, just can carry out decoction configuration, and decoction secondary filter can be carried out.Work as pulling
When injection rod 3 is displaced outwardly, injection tube 2 produces negative pressure, and decoction decoction in the presence of negative pressure enters fluid passage 1- from syringe needle
1, due to the effect of check valve, decoction can only carry out drawing liquid by several feed pathway 1-2 and enter in injection tube 2.When extruding note
When penetrating bar 3 and moving inward, decoction is first passed through after filter membrane 1-3 filtered, and enters fluid passage 1-1 by liquid outlet channel 1-3
Discharge, the decoction by syringe needle is the decoction after filtering.Whole operation does not cause other workloads to user, normal
The filtering of decoction has been carried out while use.
As shown in Figures 4 and 5, the present invention from injection tube 2 in use, first remove injection rod 3, then filter 1 is filled
Enter in injection tube 2, and be pushed into bottommost, finally insert injection rod 3 in injection tube 2, just can carry out decoction configuration, and can
Carry out decoction secondary filter.When pull injection rod 3 be displaced outwardly when, injection tube 2 produce negative pressure, decoction in the presence of negative pressure from
Syringe needle enters fluid passage 1-1, due to the effect of check valve, and decoction can only carry out drawing liquid entrance by several feed pathway 1-2
In injection tube 2.When extruding injection rod 3 and moving inward, decoction is first passed through after filter membrane 1-3 filtered, and passes through liquid outlet channel
1-3 is discharged into fluid passage 1-1.Whole operation does not cause other workloads to user, enters while normal use
The filtering of decoction is gone.
More than, only presently preferred embodiments of the present invention is not limited only to the practical range of the present invention, all according to patent of the present invention
Equivalence changes and modification that the content of scope is done, all should be the technology category of the present invention.
Claims (9)
1. a kind of syringe uses decoction macromolecule accurate filter, it is characterised in that including：It is arranged on injection tube (2) internal
Or the filter body (1) being connected with injection tube (2) needle holder (4), described filter body (1) front end is tapering point (6),
Rear end is filter end (5)；Described filter body (1) be internally provided with a fluid passage (1-1), at least one be used for it is single
To the feed pathway (1-2) of drawing liquid and at least one be used for unidirectional discharge opeing liquid outlet channel (1-3), fluid passage (1-1) one end
Connected with feed pathway (1-2), liquid outlet channel (1-3), fluid passage (1-1) is centrally disposed along tapering point (6), feed pathway
(1-2) and liquid outlet channel (1-3) other end are connected with filter end (5) inner chamber；In feed pathway (1-2) and liquid outlet channel (1-3)
Check valve is provided with, liquid outlet channel (1-3) is provided with filter membrane (1-3) close to filter end (5) one end.
2. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Described
Check valve includes inlet, liquid outlet, ball valve (1-6) and elasticity resistance piece (1-5)；Inlet is connected with liquid outlet, and inlet
Diameter be less than the diameter of ball valve (1-6) and liquid outlet, ball valve (1-6) gap is arranged in liquid outlet, and is passed through elasticity and hindered piece
(1-5) is pushed down, and realizes liquid from inlet toward liquid outlet one-way flow.
3. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Described
The quantity of liquid outlet channel (1-3) is one, and set along filter body (1) axis；Feed pathway (1-2) is multiple, and is entered
Liquid passage (1-2) is centrosymmetric distribution.
4. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Work as filtering
When device body (1) is connected with injection tube (2) needle holder (4), the connecting hole of described filter end (5) is connected with needle holder (4), even
Connect hole and the shape of needle holder (4) outer wall matches, tapering point (6) is used for and syringe needle connection.
5. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Work as filtering
Device body (1) be arranged on injection tube (2) it is internal when, the size shape of described filter body (1) with injection tube (2) front end
Chamber matches, in tapering point (6) insertion needle seat (4) inner chamber, and injection tube (2) inwall is tightly connected with filter body (1).
6. a kind of syringe according to claim 5 uses decoction macromolecule accurate filter, it is characterised in that：Described
Filter end (5) inner chamber and the shape of the piston of injection rod (3) front end match.
7. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Described
Filter membrane (1-3) is nuclear pore membrane, poly (ether sulfone) film, polyester film or nylon membrane.
8. a kind of syringe according to claim 5 uses decoction macromolecule accurate filter, it is characterised in that：Described
Filter membrane (1-3) pore size filter is 1.2~15 microns.
9. a kind of syringe according to claim 1 uses decoction macromolecule accurate filter, it is characterised in that：Described
Needle holder (4) and tapering point (6) are nipple or quick connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386375.XA CN107158523A (en) | 2017-05-26 | 2017-05-26 | A kind of syringe uses decoction macromolecule accurate filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386375.XA CN107158523A (en) | 2017-05-26 | 2017-05-26 | A kind of syringe uses decoction macromolecule accurate filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107158523A true CN107158523A (en) | 2017-09-15 |
Family
ID=59822015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710386375.XA Pending CN107158523A (en) | 2017-05-26 | 2017-05-26 | A kind of syringe uses decoction macromolecule accurate filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107158523A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397997A (en) * | 2017-09-23 | 2017-11-28 | 高玉霞 | A kind of anti-particulate pass filter of syringe |
| CN107929879A (en) * | 2017-12-11 | 2018-04-20 | 北京麦康医疗器械有限公司 | A kind of precise filtering injector |
| CN110237367A (en) * | 2019-03-27 | 2019-09-17 | 上海振浦医疗设备有限公司 | A kind of filter and its working method |
| CN110236942A (en) * | 2019-06-28 | 2019-09-17 | 江苏迪沃生物制品有限公司 | The accurate dispenser of the universal automatic switchover of one kind and its application method |
| 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 |
| CN113181479A (en) * | 2021-04-30 | 2021-07-30 | 鹰潭荣嘉集团医疗器械实业有限公司 | Disposable safety syringe sheath |
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| CN106621510A (en) * | 2017-01-19 | 2017-05-10 | 西安互邦过滤膜新材料科技有限公司 | Soft-material high-polymer precision filter used for infusion and manufacturing method thereof |
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| CN202198923U (en) * | 2011-07-05 | 2012-04-25 | 玉环县信谊高分子滤材厂 | Medical filter |
| CN102416210A (en) * | 2011-09-14 | 2012-04-18 | 贾宇东 | Automatic stopping infusion apparatus with bubble-free filling function |
| CN102885694A (en) * | 2012-05-07 | 2013-01-23 | 冀中能源峰峰集团有限公司总医院 | Precision filtration syringe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397997A (en) * | 2017-09-23 | 2017-11-28 | 高玉霞 | A kind of anti-particulate pass filter of syringe |
| CN107929879A (en) * | 2017-12-11 | 2018-04-20 | 北京麦康医疗器械有限公司 | A kind of precise filtering injector |
| CN110237367A (en) * | 2019-03-27 | 2019-09-17 | 上海振浦医疗设备有限公司 | A kind of filter and its working method |
| CN110236942A (en) * | 2019-06-28 | 2019-09-17 | 江苏迪沃生物制品有限公司 | The accurate dispenser of the universal automatic switchover of one kind and its application method |
| 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 |
| CN110353991B (en) * | 2019-07-25 | 2024-05-14 | 江苏苏云医疗器材有限公司 | Precise filtering device for injection and filtering method thereof |
| CN113181479A (en) * | 2021-04-30 | 2021-07-30 | 鹰潭荣嘉集团医疗器械实业有限公司 | Disposable safety syringe sheath |
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