CN202289079U - Built-in anti-pollution injector - Google Patents
Built-in anti-pollution injector Download PDFInfo
- Publication number
- CN202289079U CN202289079U CN2011203551686U CN201120355168U CN202289079U CN 202289079 U CN202289079 U CN 202289079U CN 2011203551686 U CN2011203551686 U CN 2011203551686U CN 201120355168 U CN201120355168 U CN 201120355168U CN 202289079 U CN202289079 U CN 202289079U
- Authority
- CN
- China
- Prior art keywords
- syringe
- built
- groove
- air filter
- piston
- 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
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a built-in anti-pollution injector and belongs to the technical field of injectors. The built-in anti-pollution injector is characterized by comprising a needle tube, a wing plate, a piston, a columnar push rod and a guiding cover plate, wherein the wing plate is arranged at the rear end of the needle tube; the piston is arranged in the needle tube; the columnar push rod is arranged at the rear end of the piston; the guiding cover plate is arranged at the rear end of the needle tube; the columnar push rod passes through the guiding cover plate and extends out of the needle tube; a slot which is communicated with the cavity of the needle tube is arranged on the guiding cover plate; an air filter is arranged in the slot; and a sealing ring is arranged at the part of the slot, which is in contact with the air filter. The utility model aims to provide the built-in anti-pollution injector with a stable structure and an excellent filtering effect. The built-in anti-pollution injector is used for proportioning liquid medicine.
Description
Technical field
This utility model relates to a kind of syringe, more particularly, relates in particular to a kind of built-in anti-pollution injector that is used for the medicinal liquid allotment.
Background technology
At present, the medicine adding syringe that generally uses in the hospital is common syringe, is made up of syringe, piston and push rod, and medical personnel move through push rod push-and-pull piston when operation, realize operations such as aspiration medicinal liquid, admixing medical solutions.But find that in actual use medical personnel are when carrying out operation such as aspiration medicinal liquid, admixing medical solutions, finger can touch push rod, exist with harmful substances such as antibacterial bring medicinal liquid into and cause cross infection maybe.Be the liquid medicine contamination of avoiding medical personnel when using syringe, to exist; The scheme that someone has proposed outside push rod, to increase protection tube solves above-mentioned technical problem; But because of complex structure, high, the singlehanded use inconvenience of manufacturing cost are difficult to apply, thereby also do not have a kind of can being applied by effective antipollution syringe so far.Chinese patent ZL200810027775.2 (publication number CN101264359A; Open day on JIUYUE 17th, 2008) a kind of " automatic resorption type antipollution medicine adding syringe " disclosed; Column push rod periphery through in syringe is provided with the mantle sleeve pipe; And the air filter that is communicated with inner chamber is set on defelctor apron, reaches the purpose of avoiding cross-contamination, this technical scheme provides comparatively simple technique solution of a kind of structure.But such scheme in use, because air filter is set directly on the defelctor apron, owing to reasons such as machining accuracies, air filter contacts defective tightness, the dissatisfactory shortcoming of sealing with the groove existence.
Summary of the invention
The purpose of this utility model is the deficiency to above-mentioned prior art, and the built-in anti-pollution injector of a kind of Stability Analysis of Structures, good filtration effect is provided.
The technical scheme of this utility model is achieved in that a kind of built-in anti-pollution injector; Comprise syringe, be arranged on the wing plate of back end of syringe, be arranged on the piston in the syringe; Be arranged on the column push rod of piston rear end portion; Be arranged on the defelctor apron of back end of syringe portion, the column push rod passes defelctor apron and extends to the syringe outside, and wherein said defelctor apron is provided with the groove that is communicated with the syringe inner chamber; In groove, be provided with air filter, be provided with sealing ring at the contact site of groove and air filter.
In the above-mentioned built-in anti-pollution injector, described air filter and groove interference fit, described sealing ring is arranged on the groove of air filter bottom.
In the above-mentioned built-in anti-pollution injector, the groove medial wall of described air filter side is provided with at least one annular groove, and described sealing ring is arranged in the annular groove.
In the above-mentioned built-in anti-pollution injector, the flexible mantle sleeve pipe of column push rod outer periphery between described defelctor apron and the piston, the telescopic natural length of this elasticity mantle is shorter than the stroke of piston in syringe.
In the above-mentioned built-in anti-pollution injector, described defelctor apron is to be extended internally by wing plate to form, and is threaded between wing plate and defelctor apron and the syringe.
This utility model through between the contact site of air filter and groove, sealing ring being set, makes sealing property be guaranteed after adopting said structure, and filter effect significantly improves; Simultaneously owing to adopt elasticity mantle sleeve pipe, and make the telescopic natural length of elasticity mantle shorter, so in use than the stroke of piston in syringe; Medical personnel depress push rod with finger; Utilize the telescopic resilience force of elasticity mantle to drive piston after loosening and move backward, realize the auto-pumping medicinal liquid, firmly bigger inconvenience when having avoided the beginning aspiration medicinal liquid; If under the situation of low dose; Also can realize auto-pumping, make things convenient for the medical worker to utilize one hand to aspirate or the liquid medicine injection operation, compared with prior art have advantage laborsaving, that use is convenient.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing this utility model is done further to specify, but do not constitute any restriction this utility model.
Fig. 1 is the structural representation of this utility model specific embodiment 1;
Fig. 2 is the local enlarged diagram at A place among Fig. 1;
Fig. 3 is the structural representation of this utility model specific embodiment 2;
Fig. 4 is the local enlarged diagram at B place among Fig. 3.
Among the figure: syringe 1, wing plate 1a, defelctor apron 1b, piston 2, column push rod 3, groove 4, annular groove 4a, air filter 5, sealing ring 6, elasticity mantle sleeve pipe 7.
The specific embodiment
Consult illustrated in figures 1 and 2ly, a kind of built-in anti-pollution injector of this utility model comprises syringe 1; Be arranged on the wing plate 1a of syringe 1 rear end, be arranged on the piston 2 in the syringe 1, be arranged on the column push rod 3 of piston 2 rearward end; Be arranged on the defelctor apron 1b of syringe 1 rearward end, defelctor apron 1b is extended internally by wing plate 1a to form, and is threaded between wing plate 1a and defelctor apron 1b and the syringe 1; Column push rod 3 passes defelctor apron 1b and extends to syringe 1 outside; On defelctor apron 1b, be provided with the groove 4 that is communicated with syringe 1 inner chamber, in groove 4, be provided with air filter 5, air filter 5 can adopt molecular film filter commonly used in the prior art; This type filter can pass through air, and prevents that macromole such as antibacterial, virus from passing through; Contact site at groove 4 and air filter 5 is provided with sealing ring 6; In the present embodiment, air filter 5 and groove 4 interference fit, described sealing ring 6 is arranged on the groove 4 of air filter 5 bottoms, is provided with the cannelure that adapts with sealing circle 6 in groove 4 bottoms.Further; The flexible mantle sleeve pipe 7 of column push rod 3 outer periphery between defelctor apron 1b and piston 2, the natural length of this elasticity mantle sleeve pipe 7 is shorter than the stroke of piston 2 in syringe 1, like this after depressing column push rod 3; Can utilize the resilience force drive piston 2 of elasticity mantle sleeve pipe 5 to move backward; Realize the auto-pumping medicinal liquid of incipient stage, firmly bigger inconvenience when having avoided the beginning aspiration medicinal liquid is used convenient, laborsaving.
Consult Fig. 3 and shown in Figure 4; A kind of built-in anti-pollution injector of this utility model; Its structure and embodiment 1 are basic identical, and difference is, on groove 4 medial walls of air filter 5 sides, is provided with at least one annular groove 4a; The quantity of annular groove 4a is two in the present embodiment, can increase or reduce the quantity of annular groove 4a as the case may be; Described sealing ring 6 is arranged in the annular groove 4a.Its result of use and embodiment 1 are basic identical.
Claims (5)
1. a built-in anti-pollution injector comprises syringe (1), is arranged on the wing plate (1a) of syringe (1) rear end; Be arranged on the piston (2) in the syringe (1); Be arranged on the column push rod (3) of piston (2) rearward end, be arranged on the defelctor apron (1b) of syringe (1) rearward end, column push rod (3) passes defelctor apron (1b) and extends to syringe (1) outside; It is characterized in that; Described defelctor apron (1b) is provided with the groove (4) that is communicated with syringe (1) inner chamber, in groove (4), is provided with air filter (5), is provided with sealing ring (6) at the contact site of groove (4) and air filter (5).
2. built-in anti-pollution injector according to claim 1 is characterized in that, described air filter (5) and groove (4) interference fit, described sealing ring (6) are arranged on the groove (4) of air filter (5) bottom.
3. built-in anti-pollution injector according to claim 1; It is characterized in that; Groove (4) medial wall of described air filter (5) side is provided with at least one annular groove (4a), and described sealing ring (6) is arranged in the annular groove (4a).
4. according to the arbitrary described built-in anti-pollution injector of claim 1 to 3; It is characterized in that; Column push rod (3) the flexible mantle sleeve pipe of outer periphery (7) between described defelctor apron (1b) and the piston (2), the natural length of this elasticity mantle sleeve pipe (7) is shorter than the stroke of piston (2) in syringe (1).
5. built-in anti-pollution injector according to claim 4 is characterized in that, described defelctor apron (1b) is to be extended internally by wing plate (1a) to form, and is threaded between wing plate (1a) and defelctor apron (1b) and the syringe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203551686U CN202289079U (en) | 2011-09-21 | 2011-09-21 | Built-in anti-pollution injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203551686U CN202289079U (en) | 2011-09-21 | 2011-09-21 | Built-in anti-pollution injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289079U true CN202289079U (en) | 2012-07-04 |
Family
ID=46358071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203551686U Expired - Fee Related CN202289079U (en) | 2011-09-21 | 2011-09-21 | Built-in anti-pollution injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836076A (en) * | 2011-09-21 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Embedded anti-pollution injector |
-
2011
- 2011-09-21 CN CN2011203551686U patent/CN202289079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836076A (en) * | 2011-09-21 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Embedded anti-pollution injector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101264359B (en) | Automatic resorption type antipollution medicine adding syringe | |
| CN201022886Y (en) | Built-in type antipollution syringe | |
| CN204293618U (en) | There is the microsyringe of positioning function | |
| CN202289079U (en) | Built-in anti-pollution injector | |
| CN201189335Y (en) | Built-in pollution prevention syringe | |
| CN102836076A (en) | Embedded anti-pollution injector | |
| CN202185022U (en) | Internal anti-pollution syringe | |
| CN201020107Y (en) | Anti-pollution medicament-adding injector | |
| CN210963383U (en) | Syringe | |
| CN100594951C (en) | Antipollution medicine adding apparatus | |
| CN2936283Y (en) | Anti-pollution seal sleeve for injector | |
| CN104759004B (en) | Hermetically sealed medicine dissolving device | |
| CN201248922Y (en) | Built-in anti-pollution syringe | |
| CN212327111U (en) | Improved anti-pollution syringe | |
| WO2009115009A1 (en) | Automatic resorption type antipollution medicine adding syringe | |
| CN204582173U (en) | A kind of hermetically sealed medicine dissolving device | |
| CN2930732Y (en) | Sealed contamination-proof syringe with lock joint | |
| CN200984371Y (en) | Anti-contamination sealed syringe | |
| CN205084015U (en) | Injector | |
| CN200998482Y (en) | Full-sealed medicine-adding injector | |
| CN201022885Y (en) | Medicine adding syringe without pushing rod | |
| CN203107866U (en) | Disposable anti-pollution injection syringe | |
| CN203970911U (en) | A kind of medical infusion chemicals dosing plant | |
| CN215193777U (en) | Propeller with dustproof structure | |
| CN201286912Y (en) | Medical syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120921 |