CN102836076A - Embedded anti-pollution injector - Google Patents
Embedded anti-pollution injector Download PDFInfo
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- CN102836076A CN102836076A CN2011102830380A CN201110283038A CN102836076A CN 102836076 A CN102836076 A CN 102836076A CN 2011102830380 A CN2011102830380 A CN 2011102830380A CN 201110283038 A CN201110283038 A CN 201110283038A CN 102836076 A CN102836076 A CN 102836076A
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- syringe
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- air filter
- push rod
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Abstract
The invention discloses an embedded anti-pollution injector, which belongs to the technical field of injectors. Technical key points are that: the embedded anti-pollution injector comprises a needle cylinder, a wing plate, a piston, a columnar push rod and a guide cover plate, wherein the wing plate is arranged at the back end of the needle cylinder; the piston is arranged in the needle cylinder; the columnar push rod is arranged on the back end part of the piston; the guide cover plate is arranged on the back end part of the needle cylinder; the columnar push rod passes through the guide cover plate, and extends to the outer side of the needle cylinder; the guide cover plate is provided with a groove which is communicated with the inner cavity of the needle cylinder; an air filter is arranged in the groove; and a contact part between the groove and the air filter is provided with a sealing ring. The invention aims to provide an embedded anti-pollution injector, which is simple in structure, has a good filtering effect and is used for preparing liquid medicaments.
Description
Technical field
The present invention relates to a kind of syringe, more particularly, relate 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 objective of the invention is to deficiency, the built-in anti-pollution injector of a kind of Stability Analysis of Structures, good filtration effect is provided to above-mentioned prior art.
Technical scheme of the present invention is achieved in that a kind of built-in anti-pollution injector, comprises syringe, is 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; Wherein said defelctor apron is provided with the groove that is communicated with the syringe inner chamber, in groove, is provided with air filter, is 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.
After the present invention adopts said structure, through between the contact site of air filter and groove, sealing ring being set, make sealing property be guaranteed, 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 the present invention is done further detailed description, but do not constitute any restriction of the present invention.
Fig. 1 is the structural representation of the specific embodiment of the invention 1;
Fig. 2 is the local enlarged diagram at A place among Fig. 1;
Fig. 3 is the structural representation of the specific embodiment of the invention 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 the present invention 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 the present invention; 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 |
|---|---|---|---|
| CN2011102830380A CN102836076A (en) | 2011-09-21 | 2011-09-21 | Embedded anti-pollution injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102830380A CN102836076A (en) | 2011-09-21 | 2011-09-21 | Embedded anti-pollution injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102836076A true CN102836076A (en) | 2012-12-26 |
Family
ID=47363982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102830380A Pending CN102836076A (en) | 2011-09-21 | 2011-09-21 | Embedded anti-pollution injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102836076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104398386A (en) * | 2014-12-09 | 2015-03-11 | 四川省人民医院 | Disposable anti-pollution and anti-leakage syringe |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040082085A (en) * | 2003-03-18 | 2004-09-24 | 한라공조주식회사 | Air filter cover of air conditioning unit |
| CN2834584Y (en) * | 2005-10-14 | 2006-11-08 | 陈庆强 | A complete-sealed anti-pollution syringe |
| CN2900835Y (en) * | 2006-03-23 | 2007-05-16 | 重庆长安汽车股份有限公司 | Air filter outlet tube seal structure for automobile engine |
| CN201022886Y (en) * | 2007-05-14 | 2008-02-20 | 陈庆强 | Built-in type antipollution syringe |
| CN101264359A (en) * | 2008-04-29 | 2008-09-17 | 陈庆强 | Automatic resorption type antipollution medicine adding syringe |
| CN101342438A (en) * | 2008-08-07 | 2009-01-14 | 石兆奇 | Accurate gas filter and manufacture thereof |
| CN201189335Y (en) * | 2008-03-20 | 2009-02-04 | 陈庆强 | Built-in pollution prevention syringe |
| CN201248922Y (en) * | 2008-06-30 | 2009-06-03 | 陈庆强 | Built-in anti-pollution syringe |
| CN201818404U (en) * | 2010-10-19 | 2011-05-04 | 浙江立丰机械零部件有限公司 | Upper end cover sealing device of safe filter core of air filter |
| CN202289079U (en) * | 2011-09-21 | 2012-07-04 | 南通天华和睿科技创业有限公司 | Built-in anti-pollution injector |
-
2011
- 2011-09-21 CN CN2011102830380A patent/CN102836076A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040082085A (en) * | 2003-03-18 | 2004-09-24 | 한라공조주식회사 | Air filter cover of air conditioning unit |
| CN2834584Y (en) * | 2005-10-14 | 2006-11-08 | 陈庆强 | A complete-sealed anti-pollution syringe |
| CN2900835Y (en) * | 2006-03-23 | 2007-05-16 | 重庆长安汽车股份有限公司 | Air filter outlet tube seal structure for automobile engine |
| CN201022886Y (en) * | 2007-05-14 | 2008-02-20 | 陈庆强 | Built-in type antipollution syringe |
| CN201189335Y (en) * | 2008-03-20 | 2009-02-04 | 陈庆强 | Built-in pollution prevention syringe |
| CN101264359A (en) * | 2008-04-29 | 2008-09-17 | 陈庆强 | Automatic resorption type antipollution medicine adding syringe |
| CN201248922Y (en) * | 2008-06-30 | 2009-06-03 | 陈庆强 | Built-in anti-pollution syringe |
| CN101342438A (en) * | 2008-08-07 | 2009-01-14 | 石兆奇 | Accurate gas filter and manufacture thereof |
| CN201818404U (en) * | 2010-10-19 | 2011-05-04 | 浙江立丰机械零部件有限公司 | Upper end cover sealing device of safe filter core of air filter |
| CN202289079U (en) * | 2011-09-21 | 2012-07-04 | 南通天华和睿科技创业有限公司 | Built-in anti-pollution injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104398386A (en) * | 2014-12-09 | 2015-03-11 | 四川省人民医院 | Disposable anti-pollution and anti-leakage syringe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |