CN102940919A - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- CN102940919A CN102940919A CN2012105406991A CN201210540699A CN102940919A CN 102940919 A CN102940919 A CN 102940919A CN 2012105406991 A CN2012105406991 A CN 2012105406991A CN 201210540699 A CN201210540699 A CN 201210540699A CN 102940919 A CN102940919 A CN 102940919A
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- CN
- China
- Prior art keywords
- syringe
- needle
- filter screen
- needle tubing
- cascade filtration
- 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
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Abstract
The invention discloses a syringe. The syringe comprises a needle tube and a needle head, wherein a primary filter screen is arranged at the bottom of the needle tube; a secondary filter screen is arranged on the needle head, close to the needle tube; and the material density of the secondary filter screen is greater than that of the primary filter screen. The syringe can effectively filter cork dust and impurities, can well filter fine impurities by adopting secondary filtration, has a simple structure and is economical and practical.
Description
Technical field
The present invention relates to a kind of syringe, relate in particular to a kind of disposable syringe, belong to medical device.
Background technology
For the small glass disintegrating slag in the ampoule bottle, be difficult to prevent fully entering of glass chip when syringe commonly used in the market, medicine in extracting ampoule bottle; When piercing air-tight bottle, be difficult to prevent entering of rubber stopper impurity fully that the possibility that pollutes is arranged; Injecting drug use can produce a large amount of particulate matters besides, and the health that insoluble granule enters the people can produce the consequence more much bigger than the side effect of medicine itself afterwards, and the precipitation of medicine itself also can produce certain impact to patient's treatment safety in addition.People have recognized the seriousness of this problem now, begin to adopt syringe needle or needle tubing with defecator, but yet there are certain deficiency in this syringe needle or needle tubing, wherein most importantly be exactly in the selection of filtering material: the too sparse filter effect that causes easily is bad, and too Mi Zeyi causes filtering material to stop up, so that liquid medicine is not smooth.A kind of two syringe that filters also occurred now, just be equipped with two syringe needles, when making up a prescription with one, change one at other during injection, although such configuration has guaranteed filter effect, use inconvenience, when workload is large, be difficult to guarantee timely replacing, do not reach due effect.
Summary of the invention
Technical problem to be solved by this invention provides a kind of filter effect that both guaranteed, again not susceptible to plugging syringe.
For solving this technical problem, the invention provides a kind of syringe, comprise needle tubing and syringe needle, be provided with the single filter net in the bottom of needle tubing, be provided with the cascade filtration net at described syringe needle near the needle tubing place.
The density of material of described cascade filtration net is greater than the density of material of single filter net.
Beneficial effect: the present invention can effectively filter bottle stopper bits and impurity, owing to adopted cascade filtration, can also well filter out fine impurity, and it is simple in structure, and is economical and practical.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1 needle tubing, 2 syringe needles, 3 single filter nets, 4 cascade filtration nets.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Figure 1 shows that structural representation of the present invention.
The present invention includes needle tubing 1 and syringe needle 2, be provided with single filter net 3 in the bottom of needle tubing 1, be provided with cascade filtration net 4 at described syringe needle 2 near needle tubing 1 place.
The density of material of described cascade filtration net 4 is greater than the density of material of single filter net 3.
The present invention need not change syringe and wire tip profile, and only adding one deck filtering material in syringe bottom and needle seat can realize.
The present invention can effectively filter bottle stopper bits and impurity, owing to adopted cascade filtration, can also well filter out fine impurity, and it is simple in structure, and is economical and practical.
Claims (2)
1. a syringe comprises needle tubing (1) and syringe needle (2), it is characterized in that: be provided with single filter net (3) in the bottom of needle tubing (1) and locate to be provided with cascade filtration net (4) at syringe needle (2) near needle tubing (1).
2. syringe according to claim 1, it is characterized in that: the density of material of described cascade filtration net (4) is greater than the density of material of single filter net (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105406991A CN102940919A (en) | 2012-12-14 | 2012-12-14 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105406991A CN102940919A (en) | 2012-12-14 | 2012-12-14 | Syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102940919A true CN102940919A (en) | 2013-02-27 |
Family
ID=47723971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105406991A Pending CN102940919A (en) | 2012-12-14 | 2012-12-14 | Syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102940919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383624A (en) * | 2014-11-17 | 2015-03-04 | 陈伟群 | Medical injector |
| CN104436360A (en) * | 2014-12-30 | 2015-03-25 | 北京伏尔特技术有限公司 | Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof |
| CN104491968A (en) * | 2015-01-15 | 2015-04-08 | 李伟 | Anesthesia injector |
-
2012
- 2012-12-14 CN CN2012105406991A patent/CN102940919A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383624A (en) * | 2014-11-17 | 2015-03-04 | 陈伟群 | Medical injector |
| CN104436360A (en) * | 2014-12-30 | 2015-03-25 | 北京伏尔特技术有限公司 | Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof |
| CN104491968A (en) * | 2015-01-15 | 2015-04-08 | 李伟 | Anesthesia injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130227 |