CN107469196B - a kind of liquid medicine filter - Google Patents
a kind of liquid medicine filter Download PDFInfo
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- CN107469196B CN107469196B CN201710643538.8A CN201710643538A CN107469196B CN 107469196 B CN107469196 B CN 107469196B CN 201710643538 A CN201710643538 A CN 201710643538A CN 107469196 B CN107469196 B CN 107469196B
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- filter
- floating plug
- liquid
- channel
- liquid medicine
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- 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
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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
The present invention provides a kind of liquid medicine filters, including：The filter body for being arranged inside injection tube or being connect with injection tube needle holder, the filter body front end are tapering point, and rear end is filter end；The filter body includes filter block and the floating plug that is movably arranged on inside filter block, forms filter chamber on the inside of filter block, annular filter film is arranged in filter chamber；When syringe drawing liquid, floating plug is moved to the floating plug channel roof of filter block, and liquid enters filter chamber from the blind hole of floating plug；When syringe drain, floating plug channel roof of the floating plug far from filter block, the liquid of filter chamber enters the blind hole of floating plug by annular filter film, filter block peripheral channel.The problems such as these particles are costly is filtered using infusion apparatus, so that it is directly filtered particle and precipitation when preparing liquid, achievees the effect that filtering, it is ensured that patient medication safety.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of liquid medicine filter.
Background technology
With the continuous improvement of modern medicine level and people's living standard, clinical application particulate matter is to human body
Harm be commonly numerous medical personnels and recognized, while some patientss also by various approach to insoluble micro- in liquid
The harm of grain is recognized, they are increasingly enhanced clinical application quality and awareness of safety, it is desirable that also higher and higher.But current state
Inside the syringe used in clinic in the market does not have the function of the particulate matter in filtering liquid medicine, a large amount of insoluble in liquid
The careless liquid of particle is injected together in blood into the human body.It is larger (to be more than blood vessel diameter, generally 6~8 μm of adult；Children
Especially infant's capillary is typically up to 2~3 μm thinner) particle can directly contribute local circulation obstacle and cause blood vessel bolt
Plug severe patient causes local stoppages and for hypoxgia, and histanoxia generates oedema and inflammation；It can be direct with blood flow less than this diameter
It causes thrombus or since foreign matter intrusion tissue causes erythrocyte aggregation so that volume is increased around particle, causes granuloma, and
Since quantity mostly can equally cause blood vessel embolism.In the present age, especially infant, children accept the risk bigger, because of human body capillary
Blood vessel is generally 6~8 μm, and children's especially infant's capillary is typically up to thinner 2~3 μm, well imagines infant, youngster
Child undertakes great security risk when receiving medication.However there is no a kind of mistakes of the progress medical filtration of simple possible now
Filter.
Invention content
To solve the problems, such as technological deficiency existing for existing syringe, the present invention provides a kind of liquid medicine filters.The injection
Device is not only at low cost, filtering safe, easy to use, during dosing, it is made directly to filter particle and precipitation when preparing liquid,
Achieve the effect that filtering, it is ensured that patient medication safety.
In order to achieve the above objectives, the present invention uses following technological means：
A kind of liquid medicine filter, including：The filter body for being arranged inside injection tube or being connect with injection tube needle holder,
The filter body front end is tapering point, and rear end is filter end；The filter body includes that filter block and activity are set
The floating plug inside filter block is set, filter chamber is formed on the inside of filter block, annular filter film is set in filter chamber；When syringe drawing liquid
When, floating plug is moved to the floating plug channel roof of filter block, and liquid enters filter chamber from the blind hole of floating plug；When syringe drain,
Floating plug channel roof of the floating plug far from filter block, the liquid of filter chamber enters by annular filter film, filter block peripheral channel to float
The blind hole of plug.
The floating plug is boss structure, and its axis is provided with blind hole, be provided on floating plug convex platform side wall with it is blind
The fluid hole and inlet opening of hole connection；Be provided in filter block with the matched floating plug channel of floating plug shape, floating plug channel small end with
Filter chamber is connected to, and filter chamber is both provided with annular filter film in addition to floating plug channel small end exports；The company of being additionally provided on filter block
Pass through the liquid outlet channel of filter chamber and floating plug channel big end；When the floating plug shaft shoulder and floating plug channel are adjacent to, blind hole by inlet opening with
Filter chamber is connected to, and fluid hole, liquid outlet channel are in sealing state；When the floating plug shaft shoulder and floating plug path clearance are arranged, blind hole is logical
Cross fluid hole, liquid outlet channel is connected to filter chamber, inlet opening is in sealing state.
The liquid outlet channel is multiple, and is arranged along filter block axis.
The fluid hole and inlet opening is circumferentially uniformly distributed along floating plug.
When filter body is connect with injection tube needle holder, the connecting hole of the filter end is connect with needle holder, even
It connects hole and the shape of needle holder outer wall matches, tapering point with syringe needle for connecting.
When filter body is arranged inside injection tube, size shape and the injection tube front end of the filter body
Inner cavity matches, and in tapering point insertion needle seat inner cavity, and injection tube inner wall is tightly connected with filter body.
The filter end inner cavity and the shape of the piston of injection rod front end matches.
The annular filter film is nuclear pore membrane, poly (ether sulfone) film, polyester film or nylon membrane.
The annular filter membrane filtration aperture is 1.2~15 microns.
The needle holder and tapering point is nipple or quick connector.
Opposite and the prior art, the present invention have the following advantages：
The liquid floating plug filter of the present invention can be used on syringe to be placed on use in injection tube, pass through
With the use of medical filtration, filter device is carried out include filter block and the floating plug that is movably arranged on inside filter block with injection tube,
When syringe drawing liquid, floating plug is moved to the floating plug channel roof of filter block, and liquid enters filter chamber from the blind hole at floating plug center,
When syringe drain, floating plug channel roof of the floating plug far from filter block, the liquid of filter chamber is by annular filter film, filter block
Peripheral channel enters the blind hole of floating plug.To realize that drawing liquid does not filter, the function of drain filtering.Filter device built in the present invention
Other workloads are not caused to user, the filtering of liquid has been carried out while normal use.It is not only at low cost, filtering peace
Entirely, easy to use, during dosing, infusion bottle can be injected with the coarse syringe needle of syringe by being visually not easy the particle found and precipitation
In (bag), infusion safety hidden danger is caused, and the problems such as these particles are costly is filtered using infusion apparatus, makes it when preparing liquid
Particle and precipitation are directly filtered, achievees the effect that filtering, it is ensured that patient medication safety.
Further, floating plug is boss structure, be provided in filter block with the matched floating plug channel of floating plug shape, when floating plug axis
When shoulder is adjacent to floating plug channel, blind hole is connected to by inlet opening with filter chamber, and fluid hole, liquid outlet channel are in sealing state；When
When the floating plug shaft shoulder is arranged with floating plug path clearance, blind hole is connected to by fluid hole, liquid outlet channel with filter chamber, and inlet opening is in close
Envelope state.It is compared with common syringe, it is easy to operate, it is easy to use, also there is filtering function.
Further, the centrally disposed advantage of liquid outlet channel is, liquid discharge is easy when center squeezes, drain extruding force
Small, filtering is abundant.When the distribution of feed pathway central symmetry can be convenient for drawing liquid, be further separated into syringe, drawing liquid efficiency
It is high.
Further, the filter body inside injection tube is fabricated structure；It can individually manufacture, use when manufacture
When be combined again, convenient for manufacture and transport.
Description of the drawings
Fig. 1 is the floating plug filter schematic diagram of embodiment 1；
Fig. 2 is floating plug filter usage state diagram one；
Fig. 3 is the floating plug filter schematic diagram of embodiment 2；
Fig. 4 is floating plug filter usage state diagram two；
Fig. 5 is floating plug schematic diagram；
Fig. 6 is filter block schematic diagram；
Fig. 7 is filter block along A-A sectional views；
Fig. 8 is filter body schematic diagram；
Wherein, 1 is filter body；2 be injection tube；3 be injection rod；4 be piston；5 be filter end；6 be tapering point；7
For floating plug；71 be blind hole；72 be fluid hole, and 73 be inlet opening, and 8 be filter block, and 81 be floating plug channel, and 82 be liquid outlet channel.
Specific implementation mode
The present invention will be further described in the following with reference to the drawings and specific embodiments, and the present invention is not limited to following embodiments.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of syringe floating plug filter of the invention, including：Filter body 1, filter
1 front end of ontology is the tapering point 6 for connecting needle, and rear end is the filter end 5 for connecting 2 needle holder 4 of injection tube；Filter
Ontology 1 includes filter block 8 and the floating plug 7 that is movably arranged on filter block 8 inside, 8 inside formation filter chamber of filter block, in filter chamber
Annular filter film 9 is set；When syringe drawing liquid, floating plug 7 is moved to the top of floating plug channel 81 of filter block 8, and liquid is from floating plug 7
Blind hole 71 enter filter chamber；When syringe drain, floating plug channel 81 top of the floating plug 7 far from filter block 8, the liquid of filter chamber
Body enters the blind hole 71 of floating plug 7 by annular filter film 9,8 peripheral channel of filter block.
Such as Fig. 5 to Fig. 8, floating plug 7 is boss structure, and its axis is provided with blind hole 71, is set on 7 convex platform side wall of floating plug
It is equipped with the fluid hole 72 being connected to blind hole 71 and inlet opening 73；It is provided in filter block 8 and the matched floating plug channel of 7 shape of floating plug
81,81 small end of floating plug channel is connected to filter chamber, and filter chamber is both provided with annular filter in addition to 81 small end of floating plug channel exports
Film 9；The liquid outlet channel 82 of connection filter chamber and 81 big end of floating plug channel is additionally provided on filter block 8；When 7 shaft shoulder of floating plug and floating plug
When channel 81 is adjacent to, blind hole 71 is connected to by inlet opening 73 with filter chamber, and fluid hole 72, liquid outlet channel 82 are in sealing state；
When 7 shaft shoulder of floating plug and 81 gap setting of floating plug channel, blind hole 71 is connected to by fluid hole 72, liquid outlet channel 82 with filter chamber,
Inlet opening 73 is in sealing state.
Embodiment 2
As shown in Figure 3, Figure 4, a kind of syringe floating plug filter, including：Filter body 1, the filter sheet
Body 1 is arranged inside injection tube 2, and size shape and the 2 front end inner cavity of injection tube of filter body 1 match, and tapering point 6 is inserted into
In 4 inner cavity of needle holder, and 2 inner wall of injection tube is tightly connected with filter body 1.The work of 5 inner cavity of filter end and 3 front end of injection rod
The shape of plug matches.
Filter body 1 includes filter block 8 and the floating plug 7 being movably arranged on inside filter block 8, and 8 inside of filter block is formed
Filter chamber, filter chamber is interior to be arranged annular filter film 9；When syringe drawing liquid, floating plug 7 is moved to the floating plug channel 81 of filter block 8
Top, liquid enter filter chamber from the blind hole 71 of floating plug 7；When syringe drain, floating plug channel of the floating plug 7 far from filter block 8
81 tops, the liquid of filter chamber enter the blind hole 71 of floating plug 7 by annular filter film 9,8 peripheral channel of filter block.
Such as Fig. 5 to Fig. 8, floating plug 7 is boss structure, and its axis is provided with blind hole 71, is set on 7 convex platform side wall of floating plug
It is equipped with the fluid hole 72 being connected to blind hole 71 and inlet opening 73；It is provided in filter block 8 and the matched floating plug channel of 7 shape of floating plug
81,81 small end of floating plug channel is connected to filter chamber, and filter chamber is both provided with annular filter in addition to 81 small end of floating plug channel exports
Film 9；The liquid outlet channel 82 of connection filter chamber and 81 big end of floating plug channel is additionally provided on filter block 8；When 7 shaft shoulder of floating plug and floating plug
When channel 81 is adjacent to, blind hole 71 is connected to by inlet opening 73 with filter chamber, and fluid hole 72, liquid outlet channel 82 are in sealing state；
When 7 shaft shoulder of floating plug and 81 gap setting of floating plug channel, blind hole 71 is connected to by fluid hole 72, liquid outlet channel 82 with filter chamber,
Inlet opening 73 is in sealing state.
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 filterings
Aperture is 1.2~15 microns.
Different syringe needles uses for convenience, and needle holder is nipple or quick connector.
As shown in Fig. 2, Fig. 8, filter device end 1 in use, will first be threadedly coupled, then incite somebody to action by the present invention with injection tube 2
Injection rod 3 is inserted into injection tube 2, can carry out liquid configuration, and can carry out medical filtration.First by injection rod 3 from injection
It is removed in cylinder 2, then filter device end 1 is fitted into injection tube 2, and be pushed into bottommost, injection rod 3 is finally inserted into injection tube
In 2, liquid configuration can be carried out, and medical filtration can be carried out.When pulling injection rod 3 to be displaced outwardly drawing liquid, injection tube 2
Negative pressure is generated, liquid enters the blind hole 71 of floating plug 7 under the action of negative pressure from syringe needle, due to 7 shaft shoulder of floating plug and floating plug channel 81
When being adjacent to, blind hole 71 is connected to by inlet opening 73 with filter chamber, and fluid hole 72, liquid outlet channel 82 are in sealing state；Liquid is only
It can be connected to by several blind holes 71, inlet opening 73, filter chamber, carry out drawing liquid and enter in injection tube 2.It is inside when squeezing injection rod 3
When mobile drain, liquid first passes through after annular filter film 9 is filtered, and enters blind hole 71 and then discharge by liquid outlet channel 82.
Whole operation does not cause other workloads to user, and the filtering of liquid has been carried out while normal use.
As shown in Fig. 4, Fig. 8, the present invention from injection tube 2 in use, first remove injection rod 3, then filter device 1 is filled
Enter in injection tube 2, and be pushed into bottommost, finally injection rod 3 is inserted into injection tube 2, liquid configuration can be carried out, and can
Carry out medical filtration.When pull injection rod 3 be displaced outwardly drawing liquid when, injection tube 2 generate negative pressure, liquid under the action of negative pressure from
Syringe needle enters the blind hole 71 of floating plug 7, and when being adjacent to floating plug channel 81 due to 7 shaft shoulder of floating plug, blind hole 71 passes through inlet opening 73 and mistake
Filter chamber is connected to, and fluid hole 72, liquid outlet channel 82 are in sealing state；Liquid can only pass through several blind holes 71, inlet opening 73, filtering
Chamber is connected to, and is carried out drawing liquid and is entered in injection tube 2.When extruding injection rod 3 moves inward drain, liquid first passes through annular filter film
After 9 are filtered, it is discharged by liquid outlet channel 82 enters blind hole 71.Whole operation does not cause other work to user
Amount, has carried out the filtering of liquid while normal use.
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
The equivalence changes and modification that the content of range is done all should be the technology scope of the present invention.
Claims (11)
1. a kind of liquid medicine filter, which is characterized in that including：Setting injection tube (2) it is internal or with injection tube (2) needle holder
(4) filter body (1) connected, the filter body (1) front end are tapering point (6), and rear end is filter end (5)；Institute
The filter body (1) stated includes filter block (8) and is movably arranged on the internal floating plug (7) of filter block (8), and filter block (8) is interior
Side forms filter chamber, and annular filter film (9) is arranged in filter chamber；When syringe drawing liquid, floating plug (7) is moved to filter block (8)
Floating plug channel (81) at the top of, liquid from the blind hole (71) of floating plug (7) enter filter chamber；When syringe drain, floating plug (7) is remote
At the top of floating plug channel (81) from filter block (8), the liquid of filter chamber is by annular filter film (9), filter block (8) peripheral channel
Into the blind hole (71) of floating plug (7).
2. a kind of liquid medicine filter according to claim 1, it is characterised in that：The floating plug (7) is boss structure, and
Its axis is provided with blind hole (71), be provided on floating plug (7) convex platform side wall the fluid hole (72) being connected to blind hole (71) and
Inlet opening (73)；It is provided in filter block (8) and the matched floating plug channel (81) of floating plug (7) shape, floating plug channel (81) small end
It is connected to filter chamber, filter chamber is both provided with annular filter film (9) in addition to floating plug channel (81) small end exports；Filter block (8)
On be additionally provided with connection filter chamber and floating plug channel (81) big end liquid outlet channel (82)；When floating plug (7) shaft shoulder and floating plug channel
(81) when being adjacent to, blind hole (71) is connected to by inlet opening (73) with filter chamber, and fluid hole (72), liquid outlet channel (82) are in sealing
State；When floating plug (7) shaft shoulder and floating plug channel (81) gap setting, blind hole (71) passes through fluid hole (72), liquid outlet channel
(82) it is connected to filter chamber, inlet opening (73) is in sealing state.
3. a kind of liquid medicine filter according to claim 2, it is characterised in that：The liquid outlet channel (82) be it is multiple,
And it is arranged along filter block (8) axis.
4. a kind of liquid medicine filter according to claim 2, it is characterised in that：The fluid hole (72) and inlet opening
(73) circumferentially uniformly distributed along floating plug (7).
5. a kind of liquid medicine filter according to claim 1, it is characterised in that：When filter body (1) and injection tube (2)
When needle holder (4) connects, the connecting hole of the filter end (5) is connect with needle holder (4), connecting hole and needle holder (4) outer wall
Shape match, tapering point (6) with syringe needle for connecting.
6. a kind of liquid medicine filter according to claim 1, it is characterised in that：When filter body (1) setting is being injected
When cylinder (2) is internal, size shape and injection tube (2) front end inner cavity of the filter body (1) match, tapering point (6)
In insertion needle seat (4) inner cavity, and injection tube (2) inner wall is tightly connected with filter body (1).
7. a kind of liquid medicine filter according to claim 6, it is characterised in that：Filter end (5) inner cavity and injection
The shape of the piston of bar (3) front end matches.
8. a kind of liquid medicine filter according to claim 1, it is characterised in that：The annular filter film (9) is polyethers
Sulfone film, polyester film or nylon membrane.
9. a kind of liquid medicine filter according to claim 8, it is characterised in that：Described annular filter film (9) filter hole
Diameter is 1.2~15 microns.
10. a kind of liquid medicine filter according to claim 1, it is characterised in that：The annular filter film (9) is that core is micro-
Pore membrane.
11. a kind of liquid medicine filter according to claim 1, it is characterised in that：The needle holder (4) and tapering point
(6) it is nipple or quick connector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643538.8A CN107469196B (en) | 2017-07-31 | 2017-07-31 | a kind of liquid medicine filter |
| PCT/CN2018/097643 WO2019024827A1 (en) | 2017-07-31 | 2018-07-27 | Precision medicinal solution filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643538.8A CN107469196B (en) | 2017-07-31 | 2017-07-31 | a kind of liquid medicine filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107469196A CN107469196A (en) | 2017-12-15 |
| CN107469196B true CN107469196B (en) | 2018-10-02 |
Family
ID=60598175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710643538.8A Active CN107469196B (en) | 2017-07-31 | 2017-07-31 | a kind of liquid medicine filter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107469196B (en) |
| WO (1) | WO2019024827A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469196B (en) * | 2017-07-31 | 2018-10-02 | 西安互邦过滤膜新材料科技有限公司 | a kind of liquid medicine filter |
| CN113429023B (en) * | 2021-07-05 | 2022-06-24 | 吉林安装集团股份有限公司 | Construction site sewage treatment system and recycling process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060217A (en) * | 1990-08-29 | 1992-04-15 | 约翰·亨利·亚当·巴特勒 | Valve for syringe |
| CN203694266U (en) * | 2014-01-26 | 2014-07-09 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtering injector |
| CN204446607U (en) * | 2015-01-19 | 2015-07-08 | 宣城市江南医疗器械有限公司 | The molten syringe of a kind of pin type secondary filter |
| CN205108598U (en) * | 2015-10-16 | 2016-03-30 | 江西洪达医疗器械集团有限公司 | Secondary filter syringe needle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201322408D0 (en) * | 2013-12-18 | 2014-02-05 | Ge Healthcare Uk Ltd | Continuous use syringe filter |
| KR101690456B1 (en) * | 2015-09-09 | 2016-12-27 | 라용국 | Filtering syringe |
| KR101868055B1 (en) * | 2016-08-05 | 2018-06-15 | (주)지메디 | Medical feeltering member for inning drug |
| CN107469196B (en) * | 2017-07-31 | 2018-10-02 | 西安互邦过滤膜新材料科技有限公司 | a kind of liquid medicine filter |
-
2017
- 2017-07-31 CN CN201710643538.8A patent/CN107469196B/en active Active
-
2018
- 2018-07-27 WO PCT/CN2018/097643 patent/WO2019024827A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060217A (en) * | 1990-08-29 | 1992-04-15 | 约翰·亨利·亚当·巴特勒 | Valve for syringe |
| CN203694266U (en) * | 2014-01-26 | 2014-07-09 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtering injector |
| CN204446607U (en) * | 2015-01-19 | 2015-07-08 | 宣城市江南医疗器械有限公司 | The molten syringe of a kind of pin type secondary filter |
| CN205108598U (en) * | 2015-10-16 | 2016-03-30 | 江西洪达医疗器械集团有限公司 | Secondary filter syringe needle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019024827A1 (en) | 2019-02-07 |
| CN107469196A (en) | 2017-12-15 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171215 Address after: 710000 3 unit 3, unit 31016, room 132, Yangyang international, Yanta District, Yanta District, Shaanxi Province Applicant after: Xi'an Hubang filter membrane new Mstar Technology Ltd Applicant after: Zhengzhou Konka medical instruments Co., Ltd. Address before: 452375 Henan province Zhengzhou economic and Technological Development Zone Qu Liang Industrial Park Applicant before: Zhengzhou Konka medical instruments Co., Ltd. |
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