CN203802895U - Disposable safety prefilled syringe - Google Patents
Disposable safety prefilled syringe Download PDFInfo
- Publication number
- CN203802895U CN203802895U CN201420180975.2U CN201420180975U CN203802895U CN 203802895 U CN203802895 U CN 203802895U CN 201420180975 U CN201420180975 U CN 201420180975U CN 203802895 U CN203802895 U CN 203802895U
- Authority
- CN
- China
- Prior art keywords
- helmet
- sleeve
- screwed union
- protection cap
- disposable safety
- 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
- 229940071643 prefilled syringe Drugs 0.000 title abstract 4
- 241001149930 Protura <class> Species 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011169 microbiological contamination Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000009512 pharmaceutical packaging Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable safety prefilled syringe. The disposable safety prefilled syringe comprises a syringe sleeve, a piston, a push rod, a spiral connector and a protection cap. The spiral connector is arranged at the front end of the syringe sleeve. The protection cap covers the conical head of the syringe sleeve. External threads connected with the spiral connector in a matched mode are arranged outside the protection cap. A plurality of weak connecting points are arranged between the protection cap and the front end face of the spiral connector in the circumferential direction. The disposable safety prefilled syringe is simple and reasonable in structure, reliable in connecting and sealing, safe in use and capable of effectively preventing the protection cap from falling; meanwhile, the product is prevented from being repeatedly used, and true single use is achieved.
Description
Technical field
This utility model relates to a kind of medical apparatus, specifically a kind of disposable use safety type pre-encapsulated injector.
Background technology
Along with the development of pre-encapsulated injector and the popularization of various Clinics, the clinical practice of preliminary filling medicine especially in recent years, various glass pre-encapsulated injectors, the application of plastics pre-encapsulated injector in drug packaging industry are more and more extensive.
With the pre-encapsulated injector of screwed union, along with fill and the use of thickness class medicinal liquid, beauty treatment implant, flushing liquor, tube-sealing solution, the market demand of this product increases substantially in recent years.But in the market with the pre-encapsulated injector of screwed union, no matter be the pre-embedding of glass or the pre-embedding of plastics, its helmet is free installation, dismountable, the product of this structure has certain use drawback: first helmet and coordinating of screwed union are that 6% Luer lock fixed pattern coordinates, as the aseptic assurance barrier of in-built medicinal liquid, it is particularly important that the sealing of this structure just seems.In long-term transportation, handling process, under helmet earthquake effect, can produce looseningly, sterile barrier is caused to very large risk; It two is that the helmet of freely dismantling is not significantly opened vestige after opening; and after opening, again load onto protective cap; there is not any change in the outward appearance of product; to bring reusable chance to bad practising medicine, seriously violate safe, effective, the disposable principle of pharmaceuticals industry.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable for structure, connects sealing reliable, uses the disposable use safety type pre-encapsulated injector of safety.
The technical scheme in the invention for solving the above technical problem is: a kind of disposable use safety type pre-encapsulated injector, it comprises sleeve, piston, push rod, screwed union, helmet, described screwed union is arranged on barrel forward end, described helmet is fastened on the conehead of sleeve, helmet outside is provided with the external screw thread being connected with screwed union, it is characterized in that: on described helmet, corresponding screwed union front end face is provided with boss, between boss and screwed union front end face, circumferentially by some weak junction points, be connected.
On boss described in the utility model, extend and be provided with welding thin slice forward.
Between this utility model helmet and screwed union, except normal grafting is connected with spiral, be upwards provided with some weak junction points week.Avoided in the process of sterilizing, transportation, owing to repeatedly shaking the helmet causing, coming off between helmet and syringe sleeve, effectively prevented product microbiological contamination.After helmet is opened, there is the vestige of opening, and can not repeat again to connect upper, prevent that product from reusing.Against existing technologies, this utility model simple structure, reasonable, connects sealing reliable, uses safety, effectively prevents that helmet from coming off, and avoids product to reuse simultaneously, has really accomplished disposable use.It is a kind of desirable disposable use safety type pre-encapsulated injector.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is local enlarged diagram in Fig. 1.
Fig. 3 is local amplification profile schematic diagram in Fig. 1.
Fig. 4 is helmet structural representation in this utility model.
Label in figure is: 1. helmet, 2. screwed union, 3. sleeve, 4. medicinal liquid, 5. piston, 6. handle, 7. push rod, 8. weak junction point.
The specific embodiment
As can be seen from Figure 1, a kind of disposable use safety type pre-encapsulated injector, it comprises sleeve 3, piston 5, push rod 7, screwed union 2, helmet 1.Syringe sleeve 3 open rearward end, wherein filling in advance has medicinal liquid 4, piston 5 packs in sleeve 3 after liquid drug, its while is as the shutoff device of sleeve 3 herb liquids, can be in the interior slip of syringe sleeve 3 sealing, piston 5 is connected with push rod 7, by push rod 7, drives piston 5 back and forth movements, realizes injection.Screwed union 2 described in the utility model is arranged on sleeve 3 front ends.Sleeve 3 can be glass sock cylinder, can be also plastic sleeve.Screwed union 2 can with the sleeve integrative-structure of same material, also can be connected with the sleeve draw-in groove of unlike material.For example sleeve 3 is glass material, and screwed union 2 is plastic material, and the two can connect by draw-in groove.When screwed union 2 injection is used, be used for and sleeve before the conehead injection needle that is connected.Conehead during storage and before the sleeve helmet 1 that is connected.The 6:100 luer lock joint that screwed union 2 described in Fig. 1 is standard.Sleeve 3 rear portions are also provided with handle 6.Above-mentioned concrete composition, structure belong to prior art, no longer describe in detail.
From Fig. 2, Fig. 3, Fig. 4, can find out, described helmet 1 is provided with the groove with the conehead outer surface fitted seal of sleeve 3 front ends, is fastened on the conehead of sleeve by groove helmet 1, and helmet 1 outside is provided with the external screw thread being connected with screwed union 2.On described helmet 1, corresponding screwed union 2 front end faces are provided with boss 11, between boss 11 and screwed union front end face, circumferentially by some weak junction points 8, are connected.
On boss 11 described in the utility model, extend forward and be provided with welding thin slice 111, itself and screwed union junction are welded to connect, and form weak junction point 8.
Between this utility model helmet and screwed union, except normal grafting is connected with spiral, week is upwards provided with the junction point of some weaknesses.Avoided in the process of sterilizing, transportation, owing to repeatedly shaking the helmet causing, coming off between helmet and syringe sleeve, avoided product microbiological contamination.In use procedure, according to normal operation step, carry out, the weak junction point between helmet 1 and screwed union 2 is Unscrew easily.Open helmet 1, syringe is connected to the enterprising enforcement of other medical apparatus and instruments and uses.After helmet 1 is opened, the junction point between helmet 1 and screwed union 2 is destroyed, has the vestige of opening clearly, cannot reconnect, and prevents that product secondary from being used.
Claims (2)
1. a disposable use safety type pre-encapsulated injector, it comprises sleeve, piston, push rod, screwed union, helmet, described screwed union is arranged on barrel forward end, described helmet is fastened on the conehead of sleeve, helmet outside is provided with the external screw thread being connected with screwed union, it is characterized in that: on described helmet, corresponding screwed union front end face is provided with boss, between boss and screwed union front end face, circumferentially by some weak junction points, be connected.
2. disposable use safety type pre-encapsulated injector according to claim 1, is characterized in that: on described boss, extend and be provided with welding thin slice forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180975.2U CN203802895U (en) | 2014-04-15 | 2014-04-15 | Disposable safety prefilled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180975.2U CN203802895U (en) | 2014-04-15 | 2014-04-15 | Disposable safety prefilled syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203802895U true CN203802895U (en) | 2014-09-03 |
Family
ID=51441711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420180975.2U Expired - Fee Related CN203802895U (en) | 2014-04-15 | 2014-04-15 | Disposable safety prefilled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203802895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693903A (en) * | 2017-11-16 | 2018-02-16 | 中国大冢制药有限公司 | A kind of pre-encapsulated injector and its manufacture method |
| CN110496274A (en) * | 2019-09-24 | 2019-11-26 | 山东威高普瑞医药包装有限公司 | A kind of molten medicinal pre-encapsulated injector and a kind of dispenser |
-
2014
- 2014-04-15 CN CN201420180975.2U patent/CN203802895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693903A (en) * | 2017-11-16 | 2018-02-16 | 中国大冢制药有限公司 | A kind of pre-encapsulated injector and its manufacture method |
| CN110496274A (en) * | 2019-09-24 | 2019-11-26 | 山东威高普瑞医药包装有限公司 | A kind of molten medicinal pre-encapsulated injector and a kind of dispenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |