CN2728525Y - Safety injector - Google Patents
Safety injector Download PDFInfo
- Publication number
- CN2728525Y CN2728525Y CN 200420079352 CN200420079352U CN2728525Y CN 2728525 Y CN2728525 Y CN 2728525Y CN 200420079352 CN200420079352 CN 200420079352 CN 200420079352 U CN200420079352 U CN 200420079352U CN 2728525 Y CN2728525 Y CN 2728525Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- safety
- safety sleeve
- sleeve
- needle
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a medical equipment, in particular to a safety injector, comprising a needle, a syringe and a push rod, and is characterized in that the needle is provided with a safety sleeve which can be telescopically sheathed with the syringe. Because the needle of the utility model is provided with the safety sleeve, the injector can be used after the safety sleeve is retracted along the syringe and the needle tip is exposed. After the injector is used, the needle can be contained in the safety sleeve by extending the sleeve along the syringe. So the needle can not puncture staff members, and the safety of the injector can be improved.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of safety injector.
Background technology
A kind of disposable syringe is arranged in the prior art, comprise needle point, push rod, urceolus, check device, one easily broken brace rod is arranged on the push rod, described needle point embeds the urceolus lower end, is provided with a push rod check device between syringe and the push rod, comprises a non-return reed, when push rod is pulled out, non-return reed original position in tube is motionless, and when push rod pushed, push rod drove the non-return reed and moves to outer bottom, when spurring push rod once more, the non-return reed supports and stings on outer tube wall, and push rod is provided with an easily broken brace rod, and the non-return reed supports when stinging on outer tube inner wall, push rod can't spur, under forceful action, the brace rod fracture, syringe damages, can't use by secondary, its weak point is that needle point is exposed to outside the syringe, and the contaminated pinhead after the injection is stabbed the staff easily.
Summary of the invention
The purpose of this utility model provides a kind of safety injector, and the syringe needle of syringe can be isolated, thereby has avoided contaminated needle sting staff, thereby improves the safety of syringe.
The purpose of this utility model is achieved by the following technical solution: a kind of safety injector, comprise syringe needle, syringe and push rod, and it is characterized in that: the place is provided with safety sleeve at syringe needle, the scalable socket of this safety sleeve and syringe.
Described syringe is threaded with safety sleeve.
Described syringe internal diameter is provided with guide groove or guide block, corresponding guide block or the guide groove of being provided with, syringe and the socket of safety sleeve guide groove on the safety sleeve external diameter.
The external diameter of described syringe is provided with the screw thread convex tendon, and the corresponding thread groove that is provided with on the safety sleeve internal diameter, the screw thread convex tendon of syringe radially are provided with the otch of printing graduation mark into convenient along the syringe external diameter.
The two ends of described guide groove also are provided with lock slots.
Described safety sleeve is a transparent material, and the safety sleeve front end is the reducing shape, makes the syringe needle that exposes outside safety sleeve be not less than 2cm during the safety sleeve retraction.
Described safety sleeve front end is provided with the big envelope for the needle point insertion of syringe needle.
The beneficial effects of the utility model are: because syringe needle of the present utility model place is provided with safety sleeve, when being exposed needle point along the syringe withdrawal, safety sleeve can use, after finishing, sleeve is stretched out along syringe, so just can hold syringe needle in the safety sleeve the inside, avoid the needle sting staff, improved the safety of syringe.
Description of drawings
Fig. 1 is the sketch map of this utility model embodiment 1
Fig. 2 is the user mode sketch map of this utility model embodiment 1
Fig. 3 is the syringe sketch map of this utility model embodiment 1
Fig. 4 is the safety sleeve sketch map of this utility model embodiment 1
Fig. 5 is the sketch map of this utility model embodiment 2
Fig. 6 is the I-I cutaway view of Fig. 5
Fig. 7 is the sketch map of the syringe of this utility model embodiment 2
Fig. 8 implements 2 safety sleeve sketch map for this utility model
The concrete real mode of revolving
Referring to figs. 1 through as can be known shown in Figure 4, among this utility model embodiment 1, the internal diameter of safety sleeve 2 is provided with thread groove 21, the corresponding screw thread convex tendon 11 that is provided with on syringe 1 external diameter, safety sleeve 2 thread connection are in the place ahead of syringe 1, when safety sleeve 2 when (promptly to syringe needle 3 directions) screw out forward, safety sleeve 2 is held syringe needle 3 inside, make it not expose in order to avoid stab the staff, when desire is used, safety sleeve 2 is revolved backward, make syringe needle 3 exposed lengths be no less than 2cm and can aspirate medicine, injection, purposes such as vein haemospasia, in addition, in order on syringe 1 the place ahead, to print graduation mark, therefore screw thread convex tendon 11 upper edge syringes 1 external diameter at syringe 1 radially has otch 12, and simultaneously in order to make graduation mark as seen in safety sleeve 2 supination inward, safety sleeve 2 is set as transparent.But the exit of the necking end of safety sleeve 2 also plug is socketed with big envelope 3, and big envelope 3 ordinary circumstances are elastomeric material, and syringe is used when finishing like this, and the tip portion of syringe needle 1 just can be inserted in the big envelope 3.
In above-mentioned, also can establish the screw thread convex tendon on the internal diameter of safety sleeve, the corresponding thread groove of establishing, safety sleeve and syringe thread connection on the syringe external diameter.
With reference to Fig. 5-as can be known shown in Figure 8, among this utility model embodiment 2, the internal diameter of safety sleeve 2 is provided with guide groove 22, the two ends of guide groove 22 also are provided with locking slot 23, the corresponding guide block 12 that is provided with on syringe 1 external diameter, in order to make safety sleeve 2 be inserted in syringe 1 the place ahead easily, the front end of the guide block 12 of syringe 1 is set as the wedge shape.The guide groove 22 of safety sleeve 2 makes safety sleeve 2 do the guide groove slip along the guide block 12 of syringe 1, when safety sleeve 2 moves on to preceding or the most last position, can the guide block 12 of syringe 1 be snapped in reach in the locking slot 23 and pin safety sleeve 2 and make it irremovable effect by rotating safety sleeve 2.The setting of the guide groove 22 of safety sleeve 2 will be satisfied can make it to hold syringe needle 3 and make syringe needle exposed outside when safety sleeve 2 slides into forward, when safety sleeve 2 is sliding backward, syringe needle 3 is exposed be no less than 2cm so that work such as inject.Other parts of present embodiment are provided with identical with embodiment 1, do description no longer in addition.
In the above-mentioned enforcement 2, also can be set as guide block on the internal diameter of safety sleeve, the corresponding guide groove of establishing on the syringe external diameter.
Claims (8)
1. a safety injector comprises syringe needle, syringe and push rod, it is characterized in that: locate to be provided with safety sleeve (2) at syringe needle (3), this safety sleeve (2) and the scalable socket of syringe (1).
2. safety injector according to claim 1 is characterized in that: described syringe (1) is threaded with safety sleeve (2).
3. safety injector according to claim 1 is characterized in that: described syringe (1) external diameter is provided with guide block or guide groove, corresponding guide groove or the guide block of being provided with on safety sleeve (2) internal diameter, syringe (1) and safety sleeve (2) guide groove socket.
4. safety injector according to claim 2, it is characterized in that: the external diameter of described syringe (1) is provided with screw thread convex tendon (11), the corresponding thread groove (21) that is provided with on safety sleeve (2) internal diameter, the screw thread convex tendon (11) of syringe (1) radially are provided with the otch (12) of printing graduation mark into convenient along syringe (1) external diameter.
5. safety injector according to claim 3 is characterized in that: the two ends of described guide groove (22) also are provided with lock slots (23).
6. according to claim 1 or 2 or 3 or 4 or 5 described safety injectors, it is characterized in that: described safety sleeve (2) is transparent material, safety sleeve (2) front end is the reducing shape, makes the syringe needle that exposes outside safety sleeve (2) be not less than 2cm during safety sleeve (2) retraction.
7. according to claim 1 or 2 or 3 or 4 or 5 described safety injectors, it is characterized in that: described safety sleeve (2) front end is provided with the big envelope (4) for the needle point insertion of syringe needle (3).
8. safety injector according to claim 6 is characterized in that: described safety sleeve front end is provided with the big envelope (4) for the needle point insertion of syringe needle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079352 CN2728525Y (en) | 2004-09-07 | 2004-09-07 | Safety injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079352 CN2728525Y (en) | 2004-09-07 | 2004-09-07 | Safety injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2728525Y true CN2728525Y (en) | 2005-09-28 |
Family
ID=35047308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420079352 Expired - Fee Related CN2728525Y (en) | 2004-09-07 | 2004-09-07 | Safety injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2728525Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474602A (en) * | 2015-08-24 | 2017-03-08 | 山东威高集团医用高分子制品股份有限公司 | A kind of safety injector needle guard |
| CN111939394A (en) * | 2020-08-25 | 2020-11-17 | 华中农业大学 | Syringe needle protection device |
-
2004
- 2004-09-07 CN CN 200420079352 patent/CN2728525Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474602A (en) * | 2015-08-24 | 2017-03-08 | 山东威高集团医用高分子制品股份有限公司 | A kind of safety injector needle guard |
| CN111939394A (en) * | 2020-08-25 | 2020-11-17 | 华中农业大学 | Syringe needle protection device |
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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 |