CN2531794Y - Diaphragmatic type disposable syringe - Google Patents
Diaphragmatic type disposable syringe Download PDFInfo
- Publication number
- CN2531794Y CN2531794Y CN 01274080 CN01274080U CN2531794Y CN 2531794 Y CN2531794 Y CN 2531794Y CN 01274080 CN01274080 CN 01274080 CN 01274080 U CN01274080 U CN 01274080U CN 2531794 Y CN2531794 Y CN 2531794Y
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- CN
- China
- Prior art keywords
- syringe
- diaphragm
- disposable syringe
- utility
- type disposable
- 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 relates a structure improvement of disposable injector. The syringe of the utility model comprises a syringe body and an end body arranged at the end of the syringe body which are cooperated with each other, and a diaphragm which is easy to extend is arranged between the end body and the syringe body, i.e., the diaphragm is arranged at the front of the syringe. Wherein, the connection between the diaphragm and the syringe can be embedded with the end body to clip the diaphragm at the front end of the syringe body, and depending on the close cooperation of both parts, the surroundings of the diaphragm can be fixed around the syringe. Or the front end of the syringe body can adopt screw pair to be connected with the end body to clip the diaphragm. Therefore, the utility model has the advantages of simple structure, reasonable arrangement, convenient production, lower cost, non-leakage, avoiding of silicone oil coating especially at the end part of the injection rod in the injector, safety, sanitation and convenience for large scale popularization and application.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, especially relates to a kind of structural improvement of disposable syringe.
Background technology
People are for fear of the cross infection in when injection, and alleviate operations such as comparatively loaded down with trivial details cleaning, sterilization, and disposable syringe is people's attention extremely.In order to reduce garbage or perfect frame, again various improved technical schemes have been proposed for it simultaneously.For example: just the someone applied for " disposable syringe " (89108226.3) by name as far back as 1989, and it is made up of thin film syringe and uncovered syringe.During use the thin film syringe packed in the uncovered syringe, just can inject as ordinary syringe.Per injection is intact only discarded with the thin film syringe.
The applicant had also once applied for " disposable syringe that can use as test tube " (95202819.0) in nineteen ninety-five, it is made up of entry needle, needle guard, syringe, fuse and syringe conehead lid.Syringe is pulled up entry needle after extracting blood, with on the conehead of conehead lid cover top cylinder and screw, extracts fuse then out and syringe can be used as test tube; It has reduced the waste of material, simplified operation sequence, and has reduced the contaminated and operator of blood and felt dirty chance.And " disposable syringe " (97212106.4); tie up to the piston rod middle part and be shaped on a hollow; the bottom of piston rod is shaped on a convex body or concave volume; be shaped on concave volume or convex body at the bottom of the piston cylinder; rubber piston head between convex body and concave volume is shaped on a thin layer, by promoting the pushing force of bar alive, the rubber thin layer of piston head is punctured; or with plunger lock in piston cylinder, piston rod top also is shaped on the retaining of a lengthening and plugs in the protector that body constitutes.
Though technique scheme has his own strong points, solved certain technical problem.But, plastic injection-moulded the making of the many employings of disposable syringe, especially cylindrical shell, the end of its push rod then is provided with the seal of rubber mass, to guarantee the sealing of syringe integral body.Thereby in practice,, need on seal, to scribble materials such as silicone oil in order to reduce coefficient of friction between the two more, and this can pollute injection more or less, and manufacturer is careless slightly, and syringe includes the silicone oil amount and also often will exceed standard.It is comparatively complicated that some isolated syringe (comprising aforesaid patent application) then exists structure, deficiencies such as use is very convenient, safety.
Summary of the invention
This utility model mainly is to solve existing disposable syringe to need to scribble silicone oil on contact, is unfavorable for technical problems such as sanitation and hygiene.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: at described injection tube is to be cooperated with the end body of being located at its end by cylindrical shell to form, and is provided with the barrier film that is easy to stretch therebetween.That is to say, barrier film is arranged on the front portion of injection tube.Wherein, can clip barrier film and the interlocking of described end bulk phase being connected between barrier film and the injection tube, rely on both tight fits at the front end of described cylindrical shell, be fixed on around membranous injection tube around.Perhaps, the front end of described cylindrical shell also can clip barrier film and described end body and adopts screw pair matched.
Can be with close fit between horizontal sliding face and barrel wall, or structures such as rubber seal or plastic seal ring are set betwixt.
Therefore, the utlity model has simple in structurely, connection and reasonable arrangement is manufactured conveniently, and cost is lower, the no phenomenon of leakage, and silicone oil is located to avoid being coated with in injection rod end that especially can be in syringe etc., and safe and sanitary is convenient to characteristics such as large-scale promotion, use.
Description of drawings
Accompanying drawing 1 is a kind of structural representation with part section of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: be provided with end body 3 with matching in the end of described cylindrical shell 7, both adopt the cooperation that closely is halved together, and also can adopt screw pair matched, and are provided with the latex barrier film 4 that is easy to stretch betwixt, constitute injection tube thus.The front end of described push rod 8 is a horizontal sliding face 5, and its diameter is slightly less than cylindrical shell 7, is movingly, which is provided with sealing ring (referring to accompanying drawing 1).
During use, can on the end body 3 of injection tube end, entry needle 2 be set, and be placed in the injection, pulling push rod 8, injection enters in the injection tube under atmospheric effect, makes barrier film 4 expansions, full of liquid in it.Reach the quantity of expection until injection, again entry needle 2 is inserted human bodies after, promote push rod 8, finish injection.
Claims (3)
1. diaphragm type disposable syringe, comprise injection tube, be located at the needle stand of its end and the push rod of Qi Nei, it is characterized in that forming by cylindrical shell (7) and end body (3) cooperation of being located at its end, be provided with the barrier film (4) that is easy to stretch therebetween in described injection tube system.
2. diaphragm type disposable syringe according to claim 1, the front end that it is characterized in that described cylindrical shell (7) clips barrier film (4) and is halved together with described end body (3).
3. diaphragm type disposable syringe according to claim 1, the front end that it is characterized in that described cylindrical shell (7) clip barrier film (4) and adopt screw pair matched with described end body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274080 CN2531794Y (en) | 2001-11-17 | 2001-11-17 | Diaphragmatic type disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274080 CN2531794Y (en) | 2001-11-17 | 2001-11-17 | Diaphragmatic type disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2531794Y true CN2531794Y (en) | 2003-01-22 |
Family
ID=33678817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274080 Expired - Fee Related CN2531794Y (en) | 2001-11-17 | 2001-11-17 | Diaphragmatic type disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2531794Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106456757A (en) * | 2014-05-12 | 2017-02-22 | 福尔密孔股份公司 | Pre-filled plastic syringe containing VEGF antagonist |
-
2001
- 2001-11-17 CN CN 01274080 patent/CN2531794Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106456757A (en) * | 2014-05-12 | 2017-02-22 | 福尔密孔股份公司 | Pre-filled plastic syringe containing VEGF antagonist |
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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 |