CN106075660A - Filtration syringe - Google Patents
Filtration syringe Download PDFInfo
- Publication number
- CN106075660A CN106075660A CN201610437032.7A CN201610437032A CN106075660A CN 106075660 A CN106075660 A CN 106075660A CN 201610437032 A CN201610437032 A CN 201610437032A CN 106075660 A CN106075660 A CN 106075660A
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- CN
- China
- Prior art keywords
- syringe
- seat
- groove
- plug
- valve seat
- 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
-
- 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 invention discloses a kind of filtration syringe, filter assemblies it is provided with between syringe and entry needle, filter assemblies includes valve seat, valve block, plug, filtration membrane, fixing body and connection seat, the present invention is by not upper in approximately the same plane in design valve seat groove and groove, leave from office terrace, under the medicine action of hydraulic force of different directions, utilize whether the valve block bending being located at terrace of appearing on the stage carrys out opening and closing feed pathway, whether the laminating utilizing plug top peripheral face and conical bore inwall carrys out opening and closing liquid outlet channel, without using valve member can realize efficiently separating of liquid in-out passage, simple in construction, reliability is high.
Description
Technical field
The present invention relates to a kind of filtration syringe, belong to technical field of medical instruments.
Background technology
Existing syringe, usually not filtering function, and medicinal liquid also exists microgranule, when to human injection, human body
Keenly feel more apparent；It addition, use the medicine of syringe injection, it is generally positioned in glass medicine bottle, when making up a prescription, needs to medicine bottle
The common medicinal liquid of interior injection, dissolves the medicine in medicine bottle, and in order to accelerate to dissolve, medicine bottle can be shaken by usual medical personnel
Shaking, tap, in the process, medicine bottle glass may produce chip and enter in medicinal liquid, and glass chip simultaneously enters along with injection
Human vas；Above-mentioned microgranule, glass chip, after entering human vas, easily cause thrombosis, bring greatly to health
Harm.For the problems referred to above, occur in that filter on the market, in use, need to be arranged on syringe, such as nothing filter
Needing to use, then filter of dismantling, cumbersome when operation, in today that doctor-patient relationship goes from bad to worse, the biggest workload is held
Easily causing medical personnel and produce certain negative emotions, this adds the deterioration probability of doctor-patient relationship to a certain extent.
It addition, the utility model patent of Patent No. 201620015059.2 " syringe " discloses a kind of filter knot
Structure, it passes through to open periphery valve in turn and centre valve forms liquid inlet and outlet passage, feed liquor when periphery valve is opened respectively, and centre valve is beaten
Liquid when opening, medicinal liquid is filtered by filter membrane by liquid inlet and outlet passage, structure is complex, if one of them valve damages
Bad then impact is normal to be used, and reliability is poor, and meanwhile, the filter assemblies described in this patent is located in needle holder, due to needle holder
Cross-sectional area less, so, difficulty is relatively big during fabrication, and yields is the highest, it addition, when injection uses, more difficultly, no
It is beneficial to injection.
Summary of the invention
Present invention aim to address current syringe without filtering function, or filtration is inconvenient to use, and structure is complicated,
Poor reliability, manufactures difficulty and causes the technical problem that yields is low.
For realizing above goal of the invention, the present invention provides a kind of filtration syringe, including syringe, the piston that is placed in syringe
Bar, the entry needle being installed on syringe front end and the needle guard being placed on entry needle, also set between described syringe and described entry needle
Filter assemblies, described filter assemblies is had to include:
Valve seat, described valve seat is located at the front end face of described syringe, and the center of described valve seat is provided with groove, is provided with that in described groove
This appear on the stage terrace and leave from office terrace of being connected, described leave from office terrace is provided with inlet opening, and described inlet opening connects with described syringe；
Described valve seat upper surface is the most uniformly laid with some liquid outlets；
Valve block, described valve block is located in the groove of described valve seat；
Plug, described plug lies against above described valve block, and described plug center is provided with through hole；
Filtration membrane, described filtration membrane is located on described valve seat and covers described liquid outlet, filtration membrane center be provided with
The through hole of the groove match of described valve seat, described filtration membrane through hole and described valve seat groove coaxial line；
Fixing body, described fixing body is located on described valve seat, and fixing basis is the most internal includes some liquid outlet groove holes, described filter membrane
It is internal that sheet is embedded in described fixing basis, and the upper and lower end face of described fixing body is run through in described liquid outlet groove hole；
Connecting seat, described connection seat is located at above described fixing body, connects seat and includes inner chamber, connects seat center and is provided with circular cone
Hole, connects seat and is provided with the mounting seat of described entry needle；
The outer peripheral face at described plug top and the described conical bore inwall laminating being connected seat.
Further, described plug is cone, and the bottom surface being wherein relatively large in diameter is mated with described valve block, and diameter is less
End face and the described conical bore coupling being connected seat center.
Further, described plug is made up of elastomeric material.
Further, described valve block is made up of elastomeric material.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention fixes and defines out sap cavity body between body and filtration membrane, connect seat inner chamber, connect seat center conical bore,
Inlet opening in the through hole at plug center and valve seat groove has collectively constituted feed pathway；Liquid outlet, go out sap cavity body, liquid outlet groove
The inner chamber of hole and connection seat has collectively constituted liquid outlet channel, and under unused state, valve block lower surface is fitted in appearing on the stage of groove
On terrace, valve block upper surface is fitted in bottom plug, and blocks the through hole at plug center, plug top peripheral face be connected in seat
The conical bore inwall laminating of the heart, when syringe is at inspiration medicinal liquid, valve block is down inhaled by powerful suction, makes valve block unsettled in leave from office
Part downward bending on terrace, thus connect plug and syringe, open feed pathway, medicinal liquid enters in syringe；When to people
During body liquid medicine injection, promoting piston rod, valve block is upwards resetted and blocks the through hole at plug center, thus closing by the pressure of medicinal liquid
Feed pathway, medicinal liquid liquid outlet discharge from valve seat, and enter out sap cavity body via filtration membrane, hydraulic coupling washes plug open,
So that plug top peripheral face separates with conical bore inwall, finally get through liquid outlet groove hole and connection seat.The present invention is dexterously
Devise in valve seat groove and groove the not upper and lower step surface in approximately the same plane, in the medicine action of hydraulic force of different directions
Under, utilize whether the valve block bending being located at terrace of appearing on the stage carrys out opening and closing feed pathway, in utilizing plug top peripheral face and conical bore
Whether the laminating of wall carrys out opening and closing liquid outlet channel, it is not necessary to use valve member can realize efficiently separating of liquid in-out passage, structure
Simply, reliability is high.On the other hand, the filtration of the present invention is simple to manufacture, and yields is high.
Accompanying drawing explanation
Fig. 1 is the explosive view one of the present invention；
Fig. 2 is the explosive view two of the present invention；
Fig. 3 is present invention feed liquor state diagram (arrow represents that medicinal liquid flows to) when working；
Fig. 4 is that the present invention liquid status figure (arrow represents that medicinal liquid flows to) when working.
In figure, syringe 1；Piston rod 2；Entry needle 3；Filter assemblies 4；Valve seat 41；Groove 411；Liquid outlet 412；Top bar
Face 413；Leave from office terrace 414；Inlet opening 415；Valve block 42；Plug 43；Through hole 431；Filtration membrane 44；Fixing body 45；Go out liquid
Cavity 451；Liquid outlet groove hole 452；Connect seat 46；Conical bore 461；Inner chamber 462；Needle guard 5.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As Figure 1-4, the filtration syringe of the present invention, the piston rod 2 including syringe 1, being placed in syringe 1, it is installed on
The entry needle 3 of syringe 1 front end and the needle guard 5 being placed on entry needle 3, be also provided with filter assemblies 4 between syringe 1 and entry needle 3,
Filter assemblies 4 includes:
Valve seat 41, valve seat 41 is located at the front end face of syringe 1, and the center of valve seat 41 is provided with groove 411, is provided with each other in groove 411
Appear on the stage terrace 413 and the leave from office terrace 414 being connected, leave from office terrace 414 is provided with inlet opening 415, and inlet opening 415 is with syringe 1 even
Logical；Valve seat upper surface is the most uniformly laid with some liquid outlets 412；
Valve block 42, valve block 42 is located in the groove 411 of valve seat 41；
Plug 43, plug 43 lies against above valve block 42, and plug 43 center is provided with through hole 431；
Filtration membrane 44, filtration membrane 44 is located on valve seat 41 and covers liquid outlet 412, and filtration membrane 44 center is provided with and valve
The through hole that the groove 411 of seat matches, filtration membrane through hole and valve seat groove 411 coaxial line；
Fixing body 45, fixing body 45 is located on valve seat 41, includes some liquid outlet groove holes 452, filter membrane in fixing body 45
Sheet 44 is embedded in fixing body 45, and the upper and lower end face of fixing body 45 is run through in liquid outlet groove hole 452；
Connect seat 46, connect seat 46 and be located at above fixing body 45, connect seat 46 and include inner chamber 462, connect seat 46 center and be provided with
Conical bore 461, connects seat 46 and is provided with the mounting seat of entry needle；
The outer peripheral face at plug 43 top is fitted with the inwall of the conical bore 461 being connected seat.
Preferably, plug 43 is in cone, and the bottom surface being wherein relatively large in diameter is mated with valve block 42, the less end face of diameter with
The conical bore 461 connecting seat center mates.
Preferably, plug 43 and valve block 42, by elastomeric material, such as silica gel, are made, and the plug 43 that elastomeric material is made has
Flexible, the outer peripheral face at its top is fitted closely with the inwall of the conical bore 461 being connected seat, good sealing effect；Elastomeric material system
The valve block 42 become has elasticity, is on the one hand in close contact with plug 43 under medicine action of hydraulic force upwards, good seal, the opposing party
Face, easily bending can form feed pathway under downward medicine action of hydraulic force.
As shown in Figure 3-4, the fixing sap cavity body 451 that defines out between body 45 and filtration membrane 44, connection seat inner chamber
462, the inlet opening 415 connected in the conical bore 461 at seat center, the through hole 431 at plug center and valve seat groove collectively constitutes
Feed pathway (arrow in Fig. 3 i.e. represents feed pathway)；Liquid outlet 412, go out sap cavity body 451, liquid outlet groove hole 452 and even
The inner chamber 462 of joint chair has collectively constituted liquid outlet channel (arrow in Fig. 4 i.e. represents feed pathway), unused state of the present invention
Under, what valve block 42 lower surface was fitted in groove appears on the stage on terrace 413, and valve block 42 upper surface is fitted in bottom plug 43, and blocks
The through hole 431 at plug center, plug 43 top peripheral face and the conical bore 461 inwall laminating being connected seat center, when syringe 1 is being inhaled
When entering medicinal liquid, valve block 42 is down inhaled by powerful suction, makes the unsettled part on leave from office terrace 414 of valve block 42 roll over downwards
Curved, thus connect plug through hole 431 and syringe 1, open feed pathway, medicinal liquid enters in syringe 1；When to human injection's medicinal liquid
Time, promoting piston rod 2, valve block 42 is upwards resetted and blocks the through hole 431 at plug center, thus closing feed liquor by the pressure of medicinal liquid
Passage, medicinal liquid liquid outlet 412 from valve seat discharges, and enters out sap cavity body 451 via filtration membrane 44, and hydraulic coupling is washed open stifled
43, so that plug 43 top peripheral face separates with conical bore 461 inwall, finally through liquid outlet groove hole 452 with connect seat inner chamber
462 get.The present invention devise dexterously in valve seat groove 41 and groove not the upper and lower step surface 413 in approximately the same plane,
414, under the medicine action of hydraulic force of different directions, utilize whether valve block 42 bending being located at terrace 413 of appearing on the stage carrys out opening and closing feed liquor
Passage, utilizes whether the laminating of plug 43 top peripheral face and conical bore 461 inwall carrys out opening and closing liquid outlet channel, it is not necessary to use valve
Component can realize efficiently separating of liquid in-out passage, simple in construction, and reliability is high.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. filtration syringe, the piston rod including syringe, being placed in syringe, the entry needle being installed on syringe front end and be placed on injection
Needle guard on pin, it is characterised in that be also provided with filter assemblies, described filter assemblies bag between described syringe and described entry needle
Include:
Valve seat, described valve seat is located at the front end face of described syringe, and the center of described valve seat is provided with groove, is provided with that in described groove
This appear on the stage terrace and leave from office terrace of being connected, described leave from office terrace is provided with inlet opening, and described inlet opening connects with described syringe；
Described valve seat upper surface is the most uniformly laid with some liquid outlets；
Valve block, described valve block is located in the groove of described valve seat；
Plug, described plug lies against above described valve block, and described plug center is provided with through hole；
Filtration membrane, described filtration membrane is located on described valve seat and covers described liquid outlet, filtration membrane center be provided with
The through hole of the groove match of described valve seat, described filtration membrane through hole and described valve seat groove coaxial line；
Fixing body, described fixing body is located on described valve seat, and fixing basis is the most internal includes some liquid outlet groove holes, described filter membrane
It is internal that sheet is embedded in described fixing basis, and the upper and lower end face of described fixing body is run through in described liquid outlet groove hole；
Connecting seat, described connection seat is located at above described fixing body, connects seat and includes inner chamber, connects seat center and is provided with circular cone
Hole, connects seat and is provided with the mounting seat of described entry needle；
The outer peripheral face at described plug top and the described conical bore inwall laminating being connected seat.
2. filtration syringe as claimed in claim 1, it is characterised in that described plug is cone, is wherein relatively large in diameter
Bottom surface is mated with described valve block, and end face and the described conical bore being connected seat center that diameter is less mate.
3. filtration syringe as claimed in claim 1 or 2, it is characterised in that described plug is made up of elastomeric material.
4. filtration syringe as claimed in claim 1 or 2, it is characterised in that described valve block is made up of elastomeric material.
5. filtration syringe as claimed in claim 3, it is characterised in that described valve block is made up of elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437032.7A CN106075660B (en) | 2016-06-20 | 2016-06-20 | Filtering syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437032.7A CN106075660B (en) | 2016-06-20 | 2016-06-20 | Filtering syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106075660A true CN106075660A (en) | 2016-11-09 |
| CN106075660B CN106075660B (en) | 2022-07-22 |
Family
ID=57236735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610437032.7A Active CN106075660B (en) | 2016-06-20 | 2016-06-20 | Filtering syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106075660B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964026A (en) * | 2017-04-28 | 2017-07-21 | 河南大学淮河医院 | High-precision anesthesia syringe |
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
| CN110215569A (en) * | 2019-07-16 | 2019-09-10 | 吉林大学 | A kind of syringe with filtering function |
| 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 |
| CN110353992A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of dispenser or syringe filter and its filter method |
| CN110384842A (en) * | 2018-04-23 | 2019-10-29 | 象牙弗隆泰克株式会社 | Filter syringe |
| CN110812605A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Precise filtering injector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721321A (en) * | 2014-01-26 | 2014-04-16 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtration injector |
| CN205268756U (en) * | 2016-01-08 | 2016-06-01 | 威海出入境检验检疫局 | Injector |
| CN205832313U (en) * | 2016-06-20 | 2016-12-28 | 浙江信纳医疗器械科技有限公司 | Filtration syringe |
-
2016
- 2016-06-20 CN CN201610437032.7A patent/CN106075660B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721321A (en) * | 2014-01-26 | 2014-04-16 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtration injector |
| CN205268756U (en) * | 2016-01-08 | 2016-06-01 | 威海出入境检验检疫局 | Injector |
| CN205832313U (en) * | 2016-06-20 | 2016-12-28 | 浙江信纳医疗器械科技有限公司 | Filtration syringe |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964026A (en) * | 2017-04-28 | 2017-07-21 | 河南大学淮河医院 | High-precision anesthesia syringe |
| CN106964026B (en) * | 2017-04-28 | 2020-05-08 | 河南大学淮河医院 | High-precision anesthetic syringe |
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
| CN110384842A (en) * | 2018-04-23 | 2019-10-29 | 象牙弗隆泰克株式会社 | Filter syringe |
| CN110384842B (en) * | 2018-04-23 | 2021-10-22 | 象牙弗隆泰克株式会社 | Filter 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 |
| CN110302450A (en) * | 2019-03-27 | 2019-10-08 | 上海振浦医疗设备有限公司 | A kind of filtration syringe and its working method |
| CN110215569A (en) * | 2019-07-16 | 2019-09-10 | 吉林大学 | A kind of syringe with filtering function |
| CN110353992A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of dispenser or syringe filter and its filter method |
| CN110353992B (en) * | 2019-07-25 | 2024-03-22 | 江苏苏云医疗器材有限公司 | Filter for dispensing device or injector and filtering method thereof |
| CN110812605A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Precise filtering injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106075660B (en) | 2022-07-22 |
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