CN200939281Y - Disposable self-destroying safety syringe - Google Patents
Disposable self-destroying safety syringe Download PDFInfo
- Publication number
- CN200939281Y CN200939281Y CN 200620044928 CN200620044928U CN200939281Y CN 200939281 Y CN200939281 Y CN 200939281Y CN 200620044928 CN200620044928 CN 200620044928 CN 200620044928 U CN200620044928 U CN 200620044928U CN 200939281 Y CN200939281 Y CN 200939281Y
- Authority
- CN
- China
- Prior art keywords
- ring
- overcoat
- screens
- fixing
- coat
- 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 - Lifetime
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a one-time self-destruct syringe, which comprises a coat, a core rod, a rubber plug, a needle set and a protective cover of the coat. The utility model is characterized in that a position-restrict ring is arranged on the inner wall of the conical joint on the top of the coat and an outer position-restrict convex ring is arranged on the outer wall of the end of coat. A padlock is positioned on the head of the core rod. The back of the padlock positioned rubber plug is provided with an insurance column; a needle set position-restrict concave ring is arranged on the needle set; a protective coat position-restrict ring is arranged on the inner wall of the protective coat of the out coat; a position-restrict convex ring out the fixed ring is arranged on the outer wall of the fixed ring, an inner position-restrict convex ring and an inner position-restrict concave ring are arranged on the inner wall. The utility model can block the liquid outlet of the coat of syringe immediately after injection and pull the needle back for protection. The utility model has the advantages of simple structure, convenient and safe operation, and can protect the medical staff and patients, and the sliding of the syringe is independent of the locking structure.
Description
Technical field
This utility model relates to a kind of syringe, can immediately the syringe jacket liquid outlet be stopped up after especially relating to a kind of injection and finishing, and the disposable self-destruction safety syringe that withdrawn needle can be protected to the overcoat protective sleeve.
Background technology
Disposable self-destruction safety syringe can lose its function automatically after using once; and entry needle can be protected; the repeated use of syringe and the generation of acupuncture incident have been stopped; having reduced pathogen propagates through the blood approach; avoided between the patient, the cross infection between patient and the medical worker; real protection patient and medical worker, adopted widely clinically, be subjected to patient and medical worker's welcome.The self-destroy safety injector that has come out at present, it adopts core bar and needle stand basically, and mutual kayser is together when core bar is shifted the end onto, with needle stand and the withdrawn needle principle to the overcoat, but these syringes exist production process assembling difficulty, leakage, entry needle before use because shortcomings such as the automatic retractions of external force by the core bar of manually pulling back.
Summary of the invention
Thereby the purpose of this utility model is to provide a kind of locking state that overcoat and core bar can be formed to realize the purpose of self-destruction, convenient and reliable operation, really realize the disposable self-destruction safety syringe that the sliding capability of safeguard protection patient and medical worker and syringe is not influenced by latching structure.
The purpose of this utility model is achieved in that this utility model comprises overcoat, core bar, plug, needle stand and overcoat protective sleeve, the outer cone joint at overcoat top and the female cone joint on the needle stand are used, it is characterized in that: the inwall at the outer cone joint at overcoat top is provided with the screens ring, is provided with overcoat screens bulge loop at the outer wall of overcoat end; Head at core bar is provided with tapered end, is positioned at plug inside behind the tapered end and is provided with safety pole; On needle stand, be provided with needle stand screens scrobicular ring; The inwall of overcoat protective sleeve end is provided with protective sleeve screens scrobicular ring; Ring for fixing is installed between overcoat and the overcoat protective sleeve, and the outer wall of ring for fixing is provided with the outer screens bulge loop of ring for fixing, inwall is provided with screens bulge loop and the interior screens scrobicular ring of ring for fixing in the ring for fixing.
The external diameter of tapered end is greater than the internal diameter of screens ring.
This utility model is owing to be respectively equipped with needle stand screens scrobicular ring and protective sleeve screens scrobicular ring on needle stand and overcoat protective sleeve, on ring for fixing, be respectively equipped with outside the ring for fixing screens bulge loop in the screens bulge loop and ring for fixing, therefore after injection finishes, the overcoat of pulling back can be pulled to needle stand in the overcoat protective sleeve, when pulling back to overcoat protective sleeve end, the screens bulge loop will snap in the needle stand screens scrobicular ring of needle stand in the ring for fixing on the ring for fixing, because when installing and fixing circle, the outer screens bulge loop of ring for fixing on the ring for fixing has snapped in the protective sleeve screens scrobicular ring on the overcoat protective sleeve, both are fixed on entry needle overcoat protective sleeve inside together, thereby realize the purpose of safeguard protection; Simultaneously since the internal diameter of screens ring less than the external diameter of tapered end, overcoat forms locking state with core bar, thus the purpose of realization self-destruction.Overcoat screens bulge loop on the outer casing outer wall forms over-surplus fit structure when ring for fixing screens scrobicular ring on the ring for fixing inwall cooperates, and plays temporary fixed overcoat and does not rotate.Therefore the utlity model has and can immediately the syringe jacket liquid outlet be stopped up after injection finishes, and withdrawn needle can be protected to the overcoat protective sleeve, simple in structure, convenient and reliable operation, really realize safeguard protection patient and medical worker, and the sliding capability of the syringe advantage that not influenced by latching structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 snaps in the structural representation of overcoat top screens ring for this utility model uses the tapered end of back core bar;
Fig. 3 uses the safeguard protection sketch map of back entry needle for this utility model;
Fig. 4 is the self-destruction state diagram of syringe core rod after fractureing;
Fig. 5 is the structural representation of overcoat;
Fig. 6 is the structural representation of core bar;
Fig. 7 is the structural representation of plug;
Fig. 8 is the structural representation of overcoat protective sleeve;
Fig. 9 is the structural representation of ring for fixing
Figure 10 is the structural representation of needle stand.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
This utility model comprises overcoat 1, core bar 2, plug 3, needle stand 4 and overcoat protective sleeve 5, the outer cone joint 11 at overcoat 1 top is used with the female cone joint 42 on the needle stand 4, inwall at the outer cone joint 11 at overcoat 1 top is provided with screens ring 12, is provided with overcoat screens bulge loop 13 at the outer wall of overcoat 1 end; Head at core bar 2 is provided with tapered end 21, is positioned at plug 3 inside behind the tapered end 21 and is provided with safety pole 22; On needle stand 4, be provided with needle stand screens scrobicular ring 41; The inwall of overcoat protective sleeve 5 ends is provided with protective sleeve screens scrobicular ring 51; Ring for fixing 6 is installed between overcoat 1 and the overcoat protective sleeve 5, and the outer wall of ring for fixing 6 is provided with the outer screens bulge loop 61 of ring for fixing, inwall is provided with screens bulge loop 62 and the interior screens scrobicular ring 63 of ring for fixing in the ring for fixing.
The external diameter of tapered end 21 is greater than the internal diameter of screens ring 12.
After injection finishes, tapered end 21 just in time slips into screens ring 12 front ends, because the external diameter of tapered end 21 is greater than the internal diameter of screens ring 12, tapered end 21 forms locking structure with screens ring 12, and core bar 2 can not be pulled, as the core bar 2 of will pulling back by force, the safety pole 22 that then is positioned at plug 3 inside on the core bar 2 can be broken, tapered end 21 is left on overcoat 1 back cover place with plug 3, stops up overcoat 1 liquid outlet, thereby realizes the purpose of self-destruction.The overcoat 1 of pulling back simultaneously; just needle stand 4 can be pulled in the overcoat protective sleeve 5; when pulling back to overcoat protective sleeve 5 ends; screens bulge loop 62 will snap in the needle stand screens scrobicular ring 41 of needle stand 4 in the ring for fixing on the ring for fixing 6; owing to installing and fixing circle at 6 o'clock, the outer screens bulge loop 61 of the ring for fixing on the ring for fixing 6 has snapped in the protective sleeve screens scrobicular ring 51 on the overcoat protective sleeve 5, and the two forms locking structure together; needle stand 4 is fixed on overcoat protective sleeve 5 inside, thereby realizes the purpose of safeguard protection.
Overcoat 1 outer wall is provided with overcoat screens bulge loop 13, forms over-surplus fit structure when ring for fixing screens scrobicular ring 63 on ring for fixing 6 inwalls cooperates, and plays temporary fixed overcoat 1 and does not rotate.
Claims (2)
1, a kind of disposable self-destruction safety syringe, comprise overcoat (1), core bar (2), plug (3), needle stand (4) and overcoat protective sleeve (5), it is characterized in that: the female cone joint (42) on the outer cone joint (11) at overcoat (1) top and the needle stand (4) is used, the inwall of the outer cone joint (11) at overcoat (1) top is provided with screens ring (12), and the terminal outer wall of overcoat (1) is provided with overcoat screens bulge loop (13); Head at core bar (2) is provided with tapered end (21), is positioned at plug (3) inside behind the tapered end (21) and is provided with safety pole (22); On needle stand (4), be provided with needle stand screens scrobicular ring (41); The terminal inwall of overcoat protective sleeve (5) is provided with protective sleeve screens scrobicular ring (51); Ring for fixing (6) is installed between overcoat (1) and the overcoat protective sleeve (5), and the outer wall of ring for fixing (6) is provided with the outer screens bulge loop (61) of ring for fixing, inwall is provided with screens bulge loop (62) and the interior screens scrobicular ring (63) of ring for fixing in the ring for fixing.
2, disposable self-destruction safety syringe as claimed in claim 1 is characterized in that: the external diameter of tapered end (21) is greater than the internal diameter of screens ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044928 CN200939281Y (en) | 2006-08-15 | 2006-08-15 | Disposable self-destroying safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044928 CN200939281Y (en) | 2006-08-15 | 2006-08-15 | Disposable self-destroying safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200939281Y true CN200939281Y (en) | 2007-08-29 |
Family
ID=38745472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044928 Expired - Lifetime CN200939281Y (en) | 2006-08-15 | 2006-08-15 | Disposable self-destroying safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200939281Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335474A (en) * | 2010-07-26 | 2012-02-01 | 吴振文 | Syringe needle guard |
| CN102631729A (en) * | 2012-04-17 | 2012-08-15 | 山东新华安得医疗用品有限公司 | Disposable safety syringe |
| CN102974009A (en) * | 2012-09-28 | 2013-03-20 | 林作钱 | Needle Guards and Safety Needle Assemblies |
-
2006
- 2006-08-15 CN CN 200620044928 patent/CN200939281Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335474A (en) * | 2010-07-26 | 2012-02-01 | 吴振文 | Syringe needle guard |
| CN102631729A (en) * | 2012-04-17 | 2012-08-15 | 山东新华安得医疗用品有限公司 | Disposable safety syringe |
| CN102974009A (en) * | 2012-09-28 | 2013-03-20 | 林作钱 | Needle Guards and Safety Needle Assemblies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |