CN201223605Y - Disposable retraction type injection syringe - Google Patents
Disposable retraction type injection syringe Download PDFInfo
- Publication number
- CN201223605Y CN201223605Y CNU2008200244294U CN200820024429U CN201223605Y CN 201223605 Y CN201223605 Y CN 201223605Y CN U2008200244294 U CNU2008200244294 U CN U2008200244294U CN 200820024429 U CN200820024429 U CN 200820024429U CN 201223605 Y CN201223605 Y CN 201223605Y
- Authority
- CN
- China
- Prior art keywords
- core bar
- conehead
- needle stand
- disposable
- syringe
- 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
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A disposable retractable injector, in particular to a disposable medical instrument for injection, belongs to the field of medical instruments. The disposable retractable injector comprises a needle holder, an outer sleeve, a rubber plug and a core rod, wherein the rubber plug is located on the core rod; and a breaking groove is formed on the upper-middle portion of the core rod and below the rubber plug. The injector is characterized in that the a tapered head (6) is arranged on the core rod (4); a long elastic through-groove (7) is formed at the middle of the tapered head (6); barbs (8) are arranged on the outer surface at the middle part of the tapered head (6); and a square hole with a width larger than the diameter of an inner round hole of the needle holder is formed at the middle part of the needle holder (1) to form a pull-back stage. The injector has the advantages of simple structure, easy operation, safe and convenient use, no pains, low manufacture cost, completely automatic assembly, improved production efficiency, no residual injection solution, etc.
Description
Technical field
Disposable use retracting type syringe belongs to medical instruments field.It specifically is the disposable injection medical apparatus and instruments.
Background technology
Disposable syringe is widely used in medical field as conventional medical apparatus and instruments, but for various reasons, cross infection happens occasionally, in using and clear up, injection infects the also corresponding increase of ratio of fatal pathogenic bacteria because of accidental puncture, its height hazardness has constituted serious threat to the people and vast medical care service personal's life, although some research worker and research institution have developed some these type of syringes in succession at present, but all there are some defectives, the self-destroyed syringe that for example has has reached the self-destruction purpose, but because of the defective of design, and increased patient's pain; The product that has has reached the effect of safe handling, but product structure complexity, cost height, production efficiency are low.The applicant applies for the disposable use retracting type syringe of Chinese patent, comprise: needle stand, entry needle, syringe sleeve (8) and be positioned at the push rod (7) of syringe sleeve (8), it is characterized in that: push rod (7) top is step-like, be with fluid sealant plug (5) outward, center, sealing plug (5) top is provided with the elasticity bar (4) of pulling back, have simple in structure, easy to operate, safe and convenient to use, the patient is painless, the convenient advantage such as errorless of self-destruction.But the major defect that exists be do not realize automatic assembling and have injection residual.
The utility model content
The technical problems to be solved in the utility model is: overcome the problem that prior art exists, provide a kind of simple in structure, easy to operate, safe and convenient to use, patient do not have pain, manufacturing cost lower, can realize assembling automatically enhancing productivity, do not have the residual disposable use retracting type syringe of injection fully.
The technical scheme that its technical problem that solves this utility model adopts is: this disposable use retracting type syringe, comprise: needle stand, syringe jacket tube, plug and core bar, plug is positioned at the top of core bar, the below of position, core bar upper middle plug is provided with the groove that fractures, it is characterized in that: a conehead is established on the core bar top, open a long elasticity groove in the middle of the conehead, conehead middle part outer surface is provided with barb, and needle stand middle part opening square hole width forms the platform of pulling back greater than Circularhole diameter in the needle stand.The elasticity groove mainly is can be more easy and convenient when being convenient to conehead and entering needle stand.The square hole width is greater than the diameter of circular hole in the needle stand, this design can make the barb and the decometer of pulling back close closely, behind injecting liquid drug, can needle stand be pulled back to the syringe jacket tube fully like this, effectively avoid medical worker's pricking wound risk during product treatment after use.
Conehead is the Dispoable medical plastic production.
Barb is an inverted cone.
Operation principle and work process
When the core bar that has plug is advanced in syringe tube, barb contacts with the platform place that pulls back, elastic groove easily enters the needle stand endoporus to centre retraction barb, after barb and the platform of pulling back put in place and contact, elastic groove resilience barb pins automatically with the platform of pulling back, liquid is fully discharged and is reached the noresidue standard in the syringe, finishes injection process.With after the core bar needle stand of independently pulling back enter in the syringe jacket tube, the core bar that fractures then, core bar head and plug and needle stand are stayed overcoat inside, reach the safety self-destruct state.
The effect of having a mind to that disposable use retracting type syringe compared with prior art of the present utility model is had is: compare with steel hook-type disposable safety self-breaking injector:
1, core bar, conehead and barb are designed to integral type, adopt the Shooting Technique one-shot forming, have removed the use of steel hook, have reduced manufacturing cost.
2, because do not use the steel hook, thereby save the production process that the steel hook is installed, shortened the production cycle greatly.
3, design is simpler, can realize full-automation, production in enormous quantities.
4, the barb partial design is an inverted cone, adds the elasticity of plastics itself, does not almost have resistance when barb enters needle stand, and the patient does not have obvious pain when injection.
The general injection device all adopts the Dispoable medical plastic production, has realized automatic assembling, can enhance productivity greatly.Having solved traditional baroque self-destruction syringe does not realize automatic assembling and has the residual problem of injection.Have advantages such as simple in structure, easy for operation, safe simultaneously.
Description of drawings
Fig. 1 is the disposable use retracting type of a this utility model syringe internal structure sketch map:
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 1-2 is a most preferred embodiment of the present utility model.Wherein: 1 needle stand, 2 syringe jacket tubes, 3 plugs, 4 core bars 5 platform 6 coneheads 7 elasticity grooves 8 barbs of pulling back.
The specific embodiment
Below in conjunction with accompanying drawing 1-2 disposable use retracting type syringe of the present utility model is described further:
Shown in Fig. 1-2:
This disposable use retracting type syringe, form by needle stand 1, syringe jacket tube 2, plug 3, core bar 4, the platform 5 of pulling back, conehead 6, elastic groove 7, barb 8, a conehead 6 is established on core bar 4 tops, open long elasticity grooves 7 in the middle of the conehead 6, the long elasticity groove of design mainly is can be more easy and convenient when being convenient to conehead and entering needle stand.Conehead 6 middle part outer surfaces are provided with inverted cone barb 8, plug 3 is installed in the top of syringe jacket tube 2 internal core rod 4, the below of position, core bar 4 upper middle plug 3 is provided with the groove that fractures, and needle stand 1 middle part opening square hole width forms the platform 5 of pulling back greater than Circularhole diameter in the needle stand 1.The square hole width should be greater than the diameter of circular hole in the needle stand 1, this design can make barb 8 engage closely with the platform 5 of pulling back, behind injecting liquid drug, can fully needle stand 1 be pulled back to syringe jacket tube 2 like this, effectively avoid medical worker's pricking wound risk during product treatment after use.
Operation principle and work process:
When the core bar 4 that has plug 3 is advanced in syringe jacket tube 2, barb 8 contacts with platform 5 places that pull back, elasticity groove 7 easily enters needle stand 1 endoporus to centre retraction barb 8, after barb 8 and the platform 5 of pulling back put in place and contact, elasticity groove 7 resilience barbs 8 pin automatically with the platform 5 of pulling back, liquid is fully discharged and is reached the noresidue standard in the syringe, finishes injection process.Enter in the syringe jacket tube 2 with autonomous core bar 4 needle stands 1 that return in back, the core bar 4 that fractures then, core bar 4 heads and plug 3 and needle stand 1 are stayed syringe jacket tube 2 inside, reach the safety self-destruct state.
Claims (3)
1, disposable use retracting type syringe, comprise: needle stand, syringe jacket tube, plug and core bar, plug is positioned at the top of core bar, the below of position, core bar upper middle plug is provided with the groove that fractures, it is characterized in that: a conehead (6) is established on core bar (4) top, open a long elasticity groove (7) in the middle of the conehead (6), conehead (6) middle part outer surface is provided with barb (8), and needle stand (1) middle part opening square hole width forms the platform (5) of pulling back greater than the interior Circularhole diameter of needle stand (1).
2, disposable use retracting type syringe according to claim 1, it is characterized in that: conehead (6) is the Dispoable medical plastic production.
3, disposable use retracting type syringe according to claim 1, it is characterized in that: barb (8) is an inverted cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200244294U CN201223605Y (en) | 2008-06-17 | 2008-06-17 | Disposable retraction type injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200244294U CN201223605Y (en) | 2008-06-17 | 2008-06-17 | Disposable retraction type injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201223605Y true CN201223605Y (en) | 2009-04-22 |
Family
ID=40596483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200244294U Expired - Fee Related CN201223605Y (en) | 2008-06-17 | 2008-06-17 | Disposable retraction type injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201223605Y (en) |
-
2008
- 2008-06-17 CN CNU2008200244294U patent/CN201223605Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202892570U (en) | A need-pullback-type needle-replaceable safe self-destruction syringe | |
| CN103446645A (en) | Self-destruction type disposable injection medicine core | |
| CN201098441Y (en) | Safety self-breaking injector capable of exchanging steel needle seat | |
| CN201223605Y (en) | Disposable retraction type injection syringe | |
| CN202505913U (en) | Disposable pull-back safety self-destruction injector | |
| CN204395142U (en) | A kind of type self-destroyed bilayer engaging syringe of pulling back safely | |
| CN202699778U (en) | Clamp type full-automatic injection pen | |
| CN108325032B (en) | Anti-particle filtering needle | |
| CN203436633U (en) | Self-destructive type disposable injection medicine core | |
| CN2930735Y (en) | Self-destroyed safety syringe | |
| CN202724383U (en) | Disposable safe self-destroying type injection device | |
| CN2764418Y (en) | Disposable self-destroyable safe syringe | |
| CN202355648U (en) | Syringe | |
| CN201586296U (en) | Medicine dissolving syringe needle | |
| CN201189338Y (en) | Disposable safe self-destruction syringe of high usage | |
| CN203436635U (en) | Self-destroying type disposable injection medicine core of painless intradermal injection instrument | |
| CN215309254U (en) | Disposable syringe capable of preventing secondary use | |
| CN2920268Y (en) | Simple type safety injector | |
| CN202942498U (en) | Low-pressure needle-free injection device capable of enabling liquid medicine to be jetted in atomized shape | |
| CN219332785U (en) | Automatic retraction type fixed dose safety self-destruction injector | |
| CN2640489Y (en) | Disposable safety self-destroying syringe | |
| CN2507470Y (en) | Residueless self-destroying expendable injector | |
| CN209316708U (en) | Injector for medical purpose | |
| CN216703113U (en) | Special needle of vaccination subcutaneous intramuscular injection | |
| CN2662922Y (en) | Disposable safety syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20130617 |