CN211675700U - Disposable filtering syringe - Google Patents
Disposable filtering syringe Download PDFInfo
- Publication number
- CN211675700U CN211675700U CN202020010018.0U CN202020010018U CN211675700U CN 211675700 U CN211675700 U CN 211675700U CN 202020010018 U CN202020010018 U CN 202020010018U CN 211675700 U CN211675700 U CN 211675700U
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- CN
- China
- Prior art keywords
- syringe
- needle
- filter
- fixed
- syringe needle
- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the technical field of syringes, and a disposable filtration syringe is disclosed, which comprises a syringe, the inboard bottom fixedly connected with cassette of syringe, the arc wall has been seted up to the surface of cassette, the one end integrated into one piece of syringe has the transfer line, the fixed cover of screw thread is installed in the outside of transfer line, the internal surface thread fastening of the fixed cover of screw thread has the screw cap, the one end and the syringe needle fixed column integrated into one piece of screw cap, the antiskid cover has been seted up to the surface of syringe needle fixed column one end, the inboard of syringe needle fixed column is fixed with the syringe needle, the surface grafting of the fixed cover of screw thread is fixed with the syringe needle protective sheath, the syringe needle sets up the inboard at the syringe needle. The utility model discloses a be provided with a series of structures and make the device in order to filter the liquid medicine, will dissolve medicine granule or impurity filtration and cross and filter out, and low cost, it is simple to make.
Description
Technical Field
The utility model relates to the technical field of syringes, especially, relate to disposable filtration syringe.
Background
The disposable syringe consists of a jacket, a core bar, a rubber plug, a press handle, a conical head and the like, is matched with a disposable injection needle and is used for hypodermic, intramuscular and intravenous injection of liquid medicine, blood drawing or medicine dissolving, but the existing syringe cannot filter out medicine dissolving particles or impurities well.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing syringe cannot filter out dissolved medicine particles or impurities well.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
disposable filtration syringe, including the syringe, the inboard bottom fixedly connected with cassette of syringe, the arc wall has been seted up to the surface of cassette:
the diameter of the filter is larger than the inner diameter of the injector and smaller than the outer diameter of the injector;
a circular check piece is integrally fixed on the inner side of the filter piece, and the diameter of the circular check piece is larger than that of the infusion tube.
Preferably, an infusion tube is integrally formed at one end of the syringe, a thread fixing sleeve is mounted on the outer side of the infusion tube, a thread cap is fixed on the inner surface of the thread fixing sleeve in a threaded manner, one end of the thread cap is integrally formed with a needle fixing column, an anti-slip sleeve is arranged on the outer surface of one end of the needle fixing column, and a needle is fixed on the inner side of the needle fixing column.
Preferably, the outer surface of the thread fixing sleeve is fixedly provided with a needle head protecting sleeve in an inserted manner, and the needle head is arranged on the inner side of the needle head protecting sleeve.
Preferably, the outer diameter of one end of the needle head close to the threaded fixing sleeve is the same as the inner diameter of the infusion tube.
Preferably, the inner side of the injector is movably connected with a piston injection rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a bottom of the tight laminating syringe of inboard circular contrary ending piece of cassette, the liquid medicine can only flow through the filtration pore of cassette this moment to just can filter the liquid medicine, will dissolve medicine granule or impurity and filter out, the cassette is equivalent to the check valve, and the liquid medicine of being convenient for can also filter when coming out in entering into the syringe, the utility model discloses simple structure, the filter effect is good, and low cost, makes simply.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the needle head of the present invention;
fig. 3 is a cut-away view of the present invention.
In the figure: 1. an injector; 2. a needle head protective sleeve; 3. a needle fixing post; 4. a threaded fixing sleeve; 5. a needle head; 6. an anti-slip sleeve; 7. a threaded cap; 8. a filter disc; 9. an infusion tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, the disposable filtering injector comprises an injector 1, wherein a piston injection rod is movably connected to the inner side of the injector 1 to facilitate injection of liquid medicine, a filter sheet 8 is fixedly connected to the bottom end of the inner side of the injector 1, the filter sheet 8 is a one-way valve and is made of a nano-scale air film, an arc-shaped groove is formed in the outer surface of the filter sheet 8, the diameter of the filter sheet 8 is larger than the inner diameter of the injector 1 and smaller than the outer diameter of the injector 1, and the filter sheet 8 is convenient to connect and fix;
an infusion tube 9 is integrally formed at one end of the syringe 1, a thread fixing sleeve 4 is installed at the outer side of the infusion tube 9, a thread cap 7 is fixed on the inner surface of the thread fixing sleeve 4 through threads, one end of the thread cap 7 and a needle fixing column 3 are integrally formed, an anti-slip sleeve 6 is arranged on the outer surface of one end of the needle fixing column 3, a needle 5 is fixed on the inner side of the needle fixing column 3, a needle protecting sleeve 2 is fixedly connected to the outer surface of the thread fixing sleeve 4 in an inserting mode, the needle 5 is arranged on the inner side of the needle protecting sleeve 2, the outer diameter of one end, close to the thread fixing sleeve 4, of the needle 5 is the same as the inner diameter of the infusion tube 9 in size, a circular anti-stop sheet is integrally fixed on the inner side of the filter sheet 8, the diameter of the circular anti-stop sheet is larger than that of the infusion tube 9, the, can cover the inner hole of the transfusion tube 9 and filter the liquid medicine.
The working principle is as follows:
when the injector 1 is installed, the screw cap 7 is screwed and fixed on the inner side of the screw thread fixing sleeve 4 by rotating the needle fixing column 3, at the moment, the outer side of the needle 5 is tightly attached to the inner side of the infusion tube 9, when the injector 1 is not needed to be used, the needle protecting sleeve 2 is spliced and fixed on the screw thread fixing sleeve 4, the needle 5 is arranged on the inner side of the needle protecting sleeve 2, so that the needle 5 is protected, the injector does not hurt people in the taking process of the injector, when the injector is needed to be used, the needle protecting sleeve 2 is pulled out of the screw thread fixing sleeve 4, the sharp end of the needle 5 extends into the liquid medicine, the piston injection rod reduces the inner side pressure of the injector 1, the liquid medicine is sucked, the circular anti-stop sheet on the inner side of the filter sheet 8 is bent under the pushing of the liquid medicine, so that the liquid medicine enters the inner side of the injector 1, promote piston injection pole, the liquid medicine outwards flows this moment, under the promotion of liquid medicine, the liquid outlet that the liquid transfer line 9 was covered to the bottom of the tight laminating syringe 1 of the circular contrary ending piece of 8 inboard filter discs, the liquid medicine can only flow through the filtration pore that crosses on the circular contrary ending piece of 8 filter discs this moment, thereby circular contrary ending piece just can filter the liquid medicine, will dissolve medicine granule or impurity and cross and filter out, filter disc 8 is the check valve rather than, be convenient for liquid medicine enter into syringe 1 in, can also filter when coming out, the utility model discloses simple structure, the filter effect is good, and low cost, and it is simple to make.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (5)
1. Disposable filtering syringe, including syringe (1), its characterized in that: the bottom end of the inner side of the injector (1) is fixedly connected with a filter (8), and the outer surface of the filter (8) is provided with an arc-shaped groove; the diameter of the filter disc (8) is larger than the inner diameter of the injector (1) and smaller than the outer diameter of the injector (1); a circular check sheet is integrally fixed on the inner side of the filter sheet (8), and the diameter of the circular check sheet is larger than that of the infusion tube (9).
2. The disposable filtering syringe as recited in claim 1, wherein a transfusion tube (9) is integrally formed at one end of the syringe (1), a threaded fixing sleeve (4) is installed at the outer side of the transfusion tube (9), a threaded cap (7) is fixed at the inner surface of the threaded fixing sleeve (4) in a threaded manner, one end of the threaded cap (7) is integrally formed with the needle fixing post (3), an anti-slip sleeve (6) is arranged at the outer surface of one end of the needle fixing post (3), and a needle (5) is fixed at the inner side of the needle fixing post (3).
3. Disposable filtering syringe according to claim 2, characterized in that said threaded fixing sleeve (4) has an outer surface fitted with a needle protecting sheath (2), said needle (5) being arranged inside said needle protecting sheath (2).
4. Disposable filtering syringe according to claim 2, characterized in that the external diameter of the end of said needle (5) close to the threaded fixing sleeve (4) is of the same size as the internal diameter of the infusion tube (9).
5. Disposable filtering syringe according to any of the claims 1 to 4, characterized in that the inside of said syringe (1) is articulated with a piston injection rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020010018.0U CN211675700U (en) | 2020-01-03 | 2020-01-03 | Disposable filtering syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020010018.0U CN211675700U (en) | 2020-01-03 | 2020-01-03 | Disposable filtering syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211675700U true CN211675700U (en) | 2020-10-16 |
Family
ID=72798891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020010018.0U Expired - Fee Related CN211675700U (en) | 2020-01-03 | 2020-01-03 | Disposable filtering syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211675700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
-
2020
- 2020-01-03 CN CN202020010018.0U patent/CN211675700U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20220103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |