CN2701454Y - Safety self-destructing syringe - Google Patents
Safety self-destructing syringe Download PDFInfo
- Publication number
- CN2701454Y CN2701454Y CN 200420035463 CN200420035463U CN2701454Y CN 2701454 Y CN2701454 Y CN 2701454Y CN 200420035463 CN200420035463 CN 200420035463 CN 200420035463 U CN200420035463 U CN 200420035463U CN 2701454 Y CN2701454 Y CN 2701454Y
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- CN
- China
- Prior art keywords
- syringe
- needle
- safety self
- piston
- destructing
- 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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Abstract
The utility model provides a safety self-destructing injector. A needle which is not replaceable is directly inserted into the front end of a syringe, a clamping slot on a needle stand and the clamping ring on the front end of the syringe are engaged with each other and are reversibly fixed, and an integral syringe with a needle is formed; a piston push rod is arranged in the syringe, a latch head which is arranged on the front end of the piston is cooperated with a latch cap in a needle stand. When an injection is finished, the latch head is forced to enter into the latch cap and then is tightly locked; the push rod is drawn back, the needle is drawn into the syringe, and the safety self-destructing performance is realized. The safety self-destructing injector which has simple design, reasonableness and materials saving is suitable for the assembly and pack of the mechanization production; while in use, the safety self-destructing injector has convenient operation like the ordinary syringe.
Description
Technical field: this utility model belongs to medical apparatus and instruments injector for medical purpose class.
Background technology:
Disposable plastic injector is since the beginning of the eighties, China promoted the use of, described in " national medical high polymer technology investigation and the industry development forum " compilation of data of holding in Nanchang according in December, 2003; Can accomplish one on a people one pin or disposable injection comparatively safe only be 30.5%, and the dangerous injection of (not changing needle tubing) of adopting a people one pin is up to 51.6%.Shocking numeral has impelled disposable syringe to the destructing safety type syringe transition.The U.S. has made laws in 2000 and has forced exploitation self-destroyed syringe safe in utilization.Self-destroyed syringe is through after the subnormal use, promptly loses function of use automatically.Safety injector is injection needle can be drawn in the syringe cylinder after once using, and prevents or reduces because of entry needle waterfall reveals and stab human body and cause infection.Estimate that according to the expert whole world all will promote and force to use destructing safety type syringe gradually in 5-10.Thereby China also must accelerate and the international paces that meet uncle (mother's brother), and there is the perfect new product that actual application value is arranged---the Application and Development of safety self-destructive syringe of independent intellectual property right in accelerate development China.
Summary of the invention:
In order to overcome the destructing safety syringe that more domestic producers have developed, as can not the automatic and mechanical assembling producing, materials increase, cost increases, use the convenient inadequately defective that waits in various degree, it is a kind of simple in structure that this utility model provides, and materials are minimum, cost is low and can realize automatic and mechanical assembling production, the purpose syringe that can reach safety self-destruct again easy to use.
The technical scheme that its technical problem that solves this utility model adopts is: put in the newly-designed syringe together with protective sleeve with the similar not replaceable entry needle of normal injection needle stand for one; after putting in place; put into the piston push rod of a band kayser head again, promptly consist of safe self-breaking syringe of the present utility model.The needle stand of entry needle is provided with the screens groove and the syringe front end is provided with the screens ring, and is engaged fixing.Interlock is locked mutually when injection is finished to be provided with the kayser head of kayser medicated cap and piston nose in the injecting needle base, and can not reuse is self-destruction.Powerful again back pulling-pushing rod is that screens ring and screens groove inwardly break away from, and entry needle is drawn in the syringe, outside needle point no longer is exposed to, avoids stabbing user and other people, realizes purpose safe in utilization.Push rod is provided with the screens sheet, when preventing to assemble or the kayser head of assembling on the rear push-rod enter self-destruction before use in the kayser medicated cap on the syringe needle.Push rod is provided with snap point, and push rod can being fractureed after use, reaching thoroughly disappears ruins.Syringe is provided with the screens ring, can stop piston to slip out syringe when piston is pulled back, and is equipped with sealing ring on the syringe needle He on the piston in addition, stops medicine liquid leakage.
The beneficial effects of the utility model are; Simple in structure, can realize the mechanization production and assembly.Owing to be not replaceable syringe needle, cost slightly reduces on the contrary, and it is convenient especially to use.
Description of drawings:
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is a general assembly cutaway view of the present utility model
Fig. 2 is not replaceable injection needle cutaway view
Fig. 3 is the syringe cylinder cutaway view
Fig. 4 piston push rod cutaway view
The specific embodiment:
In Fig. 1, entry needle (1) is installed on the needle stand (2), become the similar not replaceable injection needle of normal injection syringe needle, Fig. 2 needle stand (2) is provided with screens groove (3) and syringe cylinder (14) screens ring (4) foremost, and interlock was not only fixing but also slidably mutually, reach sealing by sealing ring (5) on the needle stand (2) and syringe cylinder (14), needle stand (2) is provided with kayser medicated cap (6), Fig. 4 piston (9) is provided with kayser head (7), kayser head (7) advances in people's kayser medicated cap (6) by force when injection finishes, needle stand (2) can not be separated by locked fusing with piston (9), thereby the realization self-destroying function can't reuse.Sealing ring (8) is general syringe sealing ring, be fixed on the piston (9), be provided with between piston (9) and the push rod (11) and split off point (10), syringe is provided with screens ring (12) and prevents that piston from skidding off syringe, when piston was pulled back to screens ring (12), rotating or rolling over push rod (11) snap point (10) fracture by force was thoroughly damage.Do not need tear fracture to use as long as push screens sheet (13) during operation aside.
Use of the present utility model is: pushing screens sheet (13) earlier aside can use according to a conventional method, the mutual interlock of thrust kayser medicated cap (6) kayser head (7) was locked a little when injection finished, entry needle enters in the syringe when pulling back again, when moving screens ring (12) to, rotate or roll over push rod by force, push rod promptly breaks away from syringe from snap point (10), and this syringe i.e. damage completely.
Claims (2)
1, a kind of safe self-breaking syringe, it is characterized in that: the screens ring (4) that not replaceable syringe needle (2) is provided with screens groove (3) and syringe front end matches synthetic not only fixing but also device slidably, and needle stand (2) is provided with kayser medicated cap (6) and piston (9) and is provided with kayser head (9) and can be mated locked.
2, according to the described safe self-breaking syringe of claim (1), it is characterized in that:
Push rod (11) is provided with screens sheet (13) and snap point (10) syringe is provided with screens ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035463 CN2701454Y (en) | 2004-03-30 | 2004-03-30 | Safety self-destructing syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035463 CN2701454Y (en) | 2004-03-30 | 2004-03-30 | Safety self-destructing syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701454Y true CN2701454Y (en) | 2005-05-25 |
Family
ID=34773247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420035463 Expired - Fee Related CN2701454Y (en) | 2004-03-30 | 2004-03-30 | Safety self-destructing syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2701454Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427157C (en) * | 2005-09-28 | 2008-10-22 | 山东威高集团医用高分子制品股份有限公司 | Self-destructive syringe |
| CN104998325A (en) * | 2015-07-20 | 2015-10-28 | 苏州百利医疗用品有限公司 | Anti-pollution sterile syringe |
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
-
2004
- 2004-03-30 CN CN 200420035463 patent/CN2701454Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427157C (en) * | 2005-09-28 | 2008-10-22 | 山东威高集团医用高分子制品股份有限公司 | Self-destructive syringe |
| CN104998325A (en) * | 2015-07-20 | 2015-10-28 | 苏州百利医疗用品有限公司 | Anti-pollution sterile syringe |
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |