CN107929879A - A kind of precise filtering injector - Google Patents
A kind of precise filtering injector Download PDFInfo
- Publication number
- CN107929879A CN107929879A CN201711304804.0A CN201711304804A CN107929879A CN 107929879 A CN107929879 A CN 107929879A CN 201711304804 A CN201711304804 A CN 201711304804A CN 107929879 A CN107929879 A CN 107929879A
- Authority
- CN
- China
- Prior art keywords
- syringe
- filter
- filtering
- drawing liquid
- precise filtering
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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
- A61M5/3129—Syringe barrels
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Landscapes
- 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 precise filtering injector, it includes syringe, push rod and piston, the dispensing end of the syringe is provided with filter, filter core, drawing liquid passage, filtering injection canal are provided with the filter, the drawing liquid passage and the filtering injection canal drive to rotate by the switching handle being arranged on the filter to be connected with the syringe needle with syringe.The precise filtering injector of the present invention uses different passages by the way that filter and syringe are assembled integrally, extracting liquid from liquid medicine injection, it, which is changed, to be operated by switching handle, so eliminate the inconvenience that external liquid medicine filter often dismounts.The precise filtering injector manufacturing process of the present invention is easy, good appearance, adjusts conversion conveniently, medical filtration function is more perfect.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of precise filtering injector.
Background technology
Only there is function of injection in traditional syringe, it is few to carry filtering function.There is one kind and passes through spiral shell in the market
Line screws the injection filter in external linkage with syringe, and this filter is not connected to filter when extracting medicine, note
Syringe is reconnected when penetrating medicine, the setting form of this filter needs frequently to replace installation note when extracting liquid and injection
Head and filter are penetrated, operation is inconvenience.
The content of the invention
For this reason, the technical problem to be solved in the present invention is overcome existing syringe when filter is set it is existing it is above-mentioned not
Foot, and then a kind of precise filtering injector without frequently replacing installation injection head and filter is provided.
To achieve the above object, the present invention uses following technical scheme：
A kind of precise filtering injector, it includes syringe, push rod and piston, and the dispensing end of the syringe is provided with filtering
Device, filter core, drawing liquid passage, filtering injection canal are provided with the filter, and the drawing liquid passage and the filtering injection are logical
Road is driven to rotate and is connected with the syringe needle with syringe by the switching handle being arranged on the filter.
Preferably, the filter is arranged on the bottom of the syringe, and the overall structure of the filter is in the form of annular discs, institute
State the side of filter with the madial wall sealing of the syringe to coordinate, the filter through-thickness is provided with drawing liquid hole and mistake
Injection orifice is filtered, the drawing liquid hole directly connects drawing liquid syringe needle with the inner cavity of the syringe, and the filtering injection orifice passes through described
The inner cavity of the syringe is connected by the filter core of filter with injection needle；The bottom side of the syringe is provided with for the switching
The bar hole that handle stretches out, the bar hole are opened up along the circumferential direction of the syringe, and the length dimension of the bar hole is suitable for institute
Switching handle is stated back and forth to promote between the connection drawing liquid passage or the filtration channel.
Preferably, the opening of the filter from the syringe is put into the syringe bottom, the side of the filter and
Bottom surface forms sealing with the madial wall and inner chamber bottom surface of the syringe respectively and coordinates.
Preferably, the filter is integrally formed in the drawing liquid portion of the syringe bottom.
Preferably, the switching handle is connected through a screw thread with the filter core.
Preferably, it is provided with the filter suitable for being unidirectionally pumped into the first check valve of liquid from drawing liquid syringe needle, and it is suitable
Liquid in by the syringe unidirectionally passes through the second check valve of the filter core.
Preferably, first check valve and second check valve are biological membrane material.
Beneficial effects of the present invention：
Liquid is directly pumped into syringe by the precise filtering injector of the present invention by the drawing liquid passage on filter core, Ran Houzai
By injecting out of syringe after filtering injection canal filtering, filter and syringe are assembled integrally, in extraction liquid
Different passages is used from liquid medicine injection, it, which is changed, to be operated by switching handle, so eliminate external liquid medicine filter warp
The inconvenience often dismounted.The precise filtering injector manufacturing process of the present invention is easy, good appearance, adjusts conversion conveniently, liquid mistake
It is more perfect to filter function.
Brief description of the drawings
In order to make the content of the present invention more clearly understood, below in conjunction with the accompanying drawings, the present invention is made further detailed
Thin explanation, wherein：
Fig. 1 is the decomposition texture schematic diagram of the precise filtering injector of the present invention；
Fig. 2 is the structure diagram of the filter on the precise filtering injector of the present invention；
Fig. 3 is the precise filtering injector dimensional structure diagram of the present invention.
Reference numeral is expressed as in figure：
1- syringes；2- push rods；3- pistons；4- filters；41- drawing liquids hole；42- filters injection orifice；5- switches handle；6- bars
Shape hole；7- drawing liquids portion.
Embodiment
Referring to Fig. 1-3, a kind of precise filtering injector, it includes syringe 1, push rod 2 and piston 3, the injection of the syringe 1
End filter 4 is installed, be provided with the filter 4 filter core, drawing liquid passage, filtering injection canal, the drawing liquid passage and
The filtering injection canal is driven by the switching handle 5 being arranged on the filter and rotated to connect with the syringe needle of syringe
It is logical.
In the present embodiment, the filter 4 is arranged on the bottom of the syringe 4, and the overall structure of the filter 4 is in circle
Plate-like, the side of the filter 4 and the madial wall sealing of the syringe 1 coordinate, and 4 through-thickness of filter is provided with
Drawing liquid hole 41 and filtering injection orifice 42, the drawing liquid hole 41 directly connect drawing liquid syringe needle with the inner cavity of the syringe 1, the mistake
The inner cavity of the syringe 1 is connected by filter injection orifice 42 by the filter core on the filter core with injection needle；The bottom of the syringe 1
Side is provided with the bar hole 6 stretched out for the switching handle 5, and the bar hole 6 is opened up along the circumferential direction of the syringe 1, institute
The length dimension for stating bar hole 6 back and forth pushes away suitable for the switching handle between the connection drawing liquid passage or the filtration channel
It is dynamic.For the ease of assembling, the switching handle 5 is connected through a screw thread with the filter core in the filter 4, and when installation will switch hand
The thread segment of handle is screwed in the threaded hole on filter after passing through bar hole.
Referring to Fig. 3, the opening of the filter 4 from the syringe 1 is put into 1 bottom of syringe, the bottom of the filter 4
The inner chamber bottom surface with the syringe 1, inner wall side form sealing cooperation respectively for face and side.
In other embodiments, it is provided with the filter 4 suitable for being unidirectionally pumped into the first list of liquid from drawing liquid syringe needle
To valve and suitable for the liquid in the syringe 1 is unidirectionally passed through the second check valve of the filter core, first check valve and institute
It is that biological membrane material is made to state the second check valve.
Liquid is directly pumped into syringe by the precise filtering injector of the present invention by the drawing liquid passage on filter core, Ran Houzai
By injecting out of syringe after filtering injection canal filtering, filter and syringe are assembled integrally, in extraction liquid
Different passages is used from liquid medicine injection, it, which is changed, to be operated by switching handle, so eliminate external liquid medicine filter warp
The inconvenience often dismounted.The precise filtering injector manufacturing process of the present invention is easy, good appearance, adjusts conversion conveniently, liquid mistake
It is more perfect to filter function.
Above-mentioned embodiment is simply explained in detail technical scheme, the present invention not only only office
Be limited to above-described embodiment, it will be understood by those skilled in the art that it is every according to above-mentioned principle and spirit on the basis of the present invention
Improve, substitute, all should be within protection scope of the present invention.
Claims (7)
- A kind of 1. precise filtering injector, it is characterised in that：Including syringe, push rod and piston, the dispensing end installation of the syringe There is filter, filter core, drawing liquid passage, filtering injection canal, the drawing liquid passage and the filtering are provided with the filter Injection canal is driven to rotate and is connected with the syringe needle with syringe by the switching handle being arranged on the filter.
- 2. precise filtering injector according to claim 1, it is characterised in that：The filter is arranged on the syringe Bottom, the overall structure of the filter is in the form of annular discs, and the side of the filter and the madial wall sealing of the syringe coordinate, The filter through-thickness is provided with drawing liquid hole and filtering injection orifice, and the drawing liquid hole is by drawing liquid syringe needle and the syringe Inner cavity directly connects, and the filtering injection orifice is connected the inner cavity of the syringe and injection needle by the filter core of the filter Connect；The bottom side of the syringe is provided with the bar hole stretched out for the switching handle, and the bar hole is along the syringe Circumferential direction open up, the length dimension of the bar hole is suitable for the switching handle and is connecting the drawing liquid passage or the filtering is logical Back and forth promoted between road.
- 3. precise filtering injector according to claim 2, it is characterised in that：Opening of the filter from the syringe It is put into the syringe bottom, the side and bottom surface of the filter form close with the madial wall and inner chamber bottom surface of the syringe respectively Envelope coordinates.
- 4. precise filtering injector according to claim 2, it is characterised in that：The filter is integrally formed in the pin In the drawing liquid portion of cylinder bottom.
- 5. precise filtering injector according to claim 1, it is characterised in that：The switching handle passes through with the filter core It is threadedly coupled.
- 6. precise filtering injector according to claim 1, it is characterised in that：It is provided with and is suitable for from pumping on the filter Liquid syringe needle is unidirectionally pumped into the first check valve of liquid, and suitable for the liquid in the syringe is unidirectionally passed through the second of the filter core Check valve.
- 7. precise filtering injector according to claim 6, it is characterised in that：First check valve and second list It is biological membrane material to valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711304804.0A CN107929879A (en) | 2017-12-11 | 2017-12-11 | A kind of precise filtering injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711304804.0A CN107929879A (en) | 2017-12-11 | 2017-12-11 | A kind of precise filtering injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107929879A true CN107929879A (en) | 2018-04-20 |
Family
ID=61945472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711304804.0A Pending CN107929879A (en) | 2017-12-11 | 2017-12-11 | A kind of precise filtering injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107929879A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325030A (en) * | 2018-04-23 | 2018-07-27 | 吉林大学 | A kind of anti-particle syringe of rotation advance and retreat formula |
| CN108325029A (en) * | 2018-04-23 | 2018-07-27 | 吉林大学 | A kind of rotary anti-particle syringe |
| CN108434552A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of multi-functional intravenously administrable filtering collector |
| CN108434555A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of return formula Simple dustproof syringe of elasticity |
| CN108434554A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of push type Simple dustproof syringe |
| CN108732073A (en) * | 2018-04-12 | 2018-11-02 | 河海大学 | A kind of sediment charge measurement method based on semi-permeable membrane |
| CN110215569A (en) * | 2019-07-16 | 2019-09-10 | 吉林大学 | A kind of syringe with filtering function |
| 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 |
| CN110384842A (en) * | 2018-04-23 | 2019-10-29 | 象牙弗隆泰克株式会社 | Filter syringe |
| CN110496269A (en) * | 2019-08-01 | 2019-11-26 | 广东和翔制药有限公司 | One kind now filling formula catheter flusher |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204428536U (en) * | 2014-12-19 | 2015-07-01 | 江西洪达医疗器械集团有限公司 | A kind of entry needle with defecator |
| CN106110444A (en) * | 2016-09-22 | 2016-11-16 | 吉林大学 | A kind of multifunctional injector |
| CN107158523A (en) * | 2017-05-26 | 2017-09-15 | 河南曙光健士医疗器械集团股份有限公司 | A kind of syringe uses decoction macromolecule accurate filter |
| CN206534950U (en) * | 2016-12-07 | 2017-10-03 | 山东威高集团医用高分子制品股份有限公司 | A kind of stopcock formula uses filter-type syringe |
-
2017
- 2017-12-11 CN CN201711304804.0A patent/CN107929879A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204428536U (en) * | 2014-12-19 | 2015-07-01 | 江西洪达医疗器械集团有限公司 | A kind of entry needle with defecator |
| CN106110444A (en) * | 2016-09-22 | 2016-11-16 | 吉林大学 | A kind of multifunctional injector |
| CN206534950U (en) * | 2016-12-07 | 2017-10-03 | 山东威高集团医用高分子制品股份有限公司 | A kind of stopcock formula uses filter-type syringe |
| CN107158523A (en) * | 2017-05-26 | 2017-09-15 | 河南曙光健士医疗器械集团股份有限公司 | A kind of syringe uses decoction macromolecule accurate filter |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732073A (en) * | 2018-04-12 | 2018-11-02 | 河海大学 | A kind of sediment charge measurement method based on semi-permeable membrane |
| CN108325030A (en) * | 2018-04-23 | 2018-07-27 | 吉林大学 | A kind of anti-particle syringe of rotation advance and retreat formula |
| CN108325029A (en) * | 2018-04-23 | 2018-07-27 | 吉林大学 | A kind of rotary anti-particle syringe |
| CN108434552A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of multi-functional intravenously administrable filtering collector |
| CN108434555A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of return formula Simple dustproof syringe of elasticity |
| CN108434554A (en) * | 2018-04-23 | 2018-08-24 | 吉林大学 | A kind of push type Simple dustproof syringe |
| CN110384842A (en) * | 2018-04-23 | 2019-10-29 | 象牙弗隆泰克株式会社 | Filter syringe |
| CN110215569A (en) * | 2019-07-16 | 2019-09-10 | 吉林大学 | A kind of syringe with filtering function |
| 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 |
| CN110496269A (en) * | 2019-08-01 | 2019-11-26 | 广东和翔制药有限公司 | One kind now filling formula catheter flusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |