CN204275183U - Safety injector - Google Patents
Safety injector Download PDFInfo
- Publication number
- CN204275183U CN204275183U CN201420736011.1U CN201420736011U CN204275183U CN 204275183 U CN204275183 U CN 204275183U CN 201420736011 U CN201420736011 U CN 201420736011U CN 204275183 U CN204275183 U CN 204275183U
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- CN
- China
- Prior art keywords
- spring
- compressor
- groove
- syringe
- lower collar
- 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
A kind of safety injector of this utility model, the technical problem that solve simple and easy, timely Tip protection can be prevented needle sting injector or patient after pulling out pin, and ensure safety, and structure is simple, do not affect syringe original structure, use cost is low.This utility model comprises syringe body, described syringe needle is socketed with the spring compressor be flexibly connected with syringe cylinder, and spring compressor is provided with trepanning on the spring that stretches out for syringe needle, and described entry needle over cap is arranged on the upper end of spring compressor; Be provided with spring outside described syringe needle and entry needle, the upper end of spring is fixedly connected in spring compressor, and the lower end of spring is fixed on syringe cylinder, and the periphery wall of spring compressor is provided with shifting block.Compared with prior art, after injection while extracting syringe needle finger touching spring compressor, make spring compressor depart from syringe cylinder and rapid syringe needle is wrapped in, prevent syringe needle from after pulling out pin, stabbing injector or patient, operation is simple and reliable.
Description
Technical field
This utility model relates to a kind of medical equipment, especially a kind of syringe.
Background technology
At present, traditional syringe is all made up of syringe cylinder, syringe needle and entry needle over cap, this syringe needs again to be covered by entry needle over cap after extracting syringe needle after injection, syringe needle is avoided to sting injector or patient, if when patient has infectious disease, injector's hands uses isolation glove usually, like this after pulling out pin owing to isolating the impact of glove, easily cannot immediately syringe needle over cap be covered in syringe needle, make syringe needle easily sting injector, cause the risk adding infection; In existing syringe, also have one after having injected, needle sting injector or patient can be avoided by syringe needle inhalation syringe cylinder, but it is high to there is manufacturing cost in this syringe, and when extracting injection out easily by syringe needle also together in suction syringe cylinder, cause syringe to use, add use cost.
Summary of the invention
The purpose of this utility model is to provide a kind of safety injector, and the technical problem that solve is can be simple and easy, timely by Tip protection after pulling out pin, prevents needle sting injector or patient; ensure safety; and structure is simple, do not affect syringe original structure, use cost is low.
For solving the problem, this utility model realizes by the following technical solutions: a kind of safety injector, comprise syringe body, syringe body comprises syringe cylinder and is plugged on the syringe needle of syringe cylinder upper end, syringe needle is provided with entry needle, entry needle over cap is provided with outside entry needle, described syringe needle is socketed with the spring compressor be flexibly connected with syringe cylinder, spring compressor is provided with trepanning on the spring that stretches out for syringe needle, and described entry needle over cap is arranged on the upper end of spring compressor; Spring is provided with outside described syringe needle and entry needle, the upper end of spring is fixedly connected in spring compressor, the lower end of spring is fixed on syringe cylinder, the periphery wall of spring compressor is provided with shifting block, after stirring shifting block, spring compressor departs from syringe cylinder, and spring launches the tip portion of entry needle is just in time accommodated in spring compressor by spring compressor.
The front end syringe needle plug extenal fixation of syringe needle described in the utility model is connected with the spring housing ring for fixing of annular, spring housing ring for fixing is provided with the spring lower collar of annular, syringe needle plug stretches out from spring lower collar, the external loop diameter of described spring lower collar is equal with the internal diameter of spring compressor, the lower end of spring is connected in the endoporus of spring lower collar, and described spring compressor is flexibly connected with spring lower collar.
The upper surface of spring housing ring for fixing described in the utility model is provided with annular slot, and the lower end of spring lower collar is plugged in annular slot.
The periphery wall of spring lower collar described in the utility model is provided with one week external screw thread, and be provided with one week female thread in the inwall lower end of spring compressor, described spring compressor is threaded with external screw thread by female thread, and spring compressor is flexibly connected with spring lower collar.
The periphery wall lower end of spring lower collar described in the utility model is provided with the first groove that the circumference along spring lower collar is arranged, the second groove that the axis along spring lower collar is arranged is provided with on the periphery wall of spring lower collar, above the first groove, the upper surface of the through spring lower collar in upper end of the second groove, the lower end of described second groove is communicated with formation L-shaped with the first groove; Be provided with projection in the inwall lower end of spring compressor, with the first groove location corresponding section, described spring compressor to be inserted in the second groove by projection and screws in the first groove through the second groove, and spring compressor is flexibly connected with spring lower collar.
The length of projection described in the utility model is less than the width of the second groove, and the thickness of projection is less than the width of the first groove.
First groove described in the utility model, the second groove and projection are equipped with two, two the first grooves are arranged on the relative both sides of spring lower collar periphery wall with the second groove, and two projections are separately positioned on the both sides, inwall lower end of the spring compressor corresponding with the first groove and the second groove.
The vertical sectional shape of spring compressor described in the utility model is trapezoidal.
The inwall upper end of spring compressor described in the utility model is provided with one week the first annular protrusion, the internal ring wall of spring lower collar is provided with one week the second annular protrusion, the upper end of described spring by with the first annular protrusion clamping, the upper end of spring compressor and spring is connected and fixed, the lower end of spring by with the second annular protrusion clamping, the lower end of spring and spring lower collar are connected and fixed.
This utility model compared with prior art, adopt in syringe needle, be socketed with the spring compressor be flexibly connected with syringe cylinder, between syringe cylinder and spring compressor, spring is set, after injection while extracting syringe needle finger touching spring compressor, make spring compressor depart from syringe cylinder and rapid syringe needle is wrapped in, prevent syringe needle from after pulling out pin, stabbing injector or patient, and do not affect the normal use of syringe, reduce useless pin rate, reduce use cost, operation is simple and reliable.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model.
Fig. 2 is the first syndeton schematic diagram of this utility model spring compressor and spring lower collar.
Fig. 3 is the second syndeton schematic diagram of this utility model spring compressor and spring lower collar.
Fig. 4 is schematic diagram after the first syndeton of this utility model spring compressor and spring lower collar is finished using.
Fig. 5 is schematic diagram after the second syndeton of this utility model spring compressor and spring lower collar is finished using.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
As depicted in figs. 1 and 2, safety injector of the present utility model comprises syringe body 7, syringe body 7 it comprise syringe cylinder 6, the syringe needle plug 11 be arranged on syringe cylinder 6 front end face, syringe needle plug 11 is communicated with the inside of syringe cylinder 6, injection is pushed after syringe needle plug 11 through syringe cylinder 6 to be entered in human vas from syringe needle 8, and syringe needle 8 is by being arranged on syringe needle 3 grafting of its rear end and being fixed on syringe needle plug 11; Be connected with the spring housing ring for fixing 5 of annular at front end syringe needle plug 11 extenal fixation of syringe needle 3, the upper surface of spring housing ring for fixing 5 is provided with annular slot 18; Spring housing ring for fixing 5 is provided with the spring lower collar 4 of annular, the lower end of spring lower collar 4 is plugged in annular slot 18, syringe needle plug 11 stretches out from spring lower collar 4, syringe needle 3 is arranged with the spring compressor 1 be flexibly connected with spring lower collar 4, the vertical sectional shape of spring compressor 1 is trapezoidal, under normality, spring compressor 1 is connected in spring lower collar 4, in syringe needle 3 being collected in; Spring compressor 1 is provided with trepanning 9 on the spring that stretches out for syringe needle 8, and syringe needle 8 is stretched out from trepanning spring 9, thus injects; The boss 19 of a joint projection is provided with in the upper end of spring compressor 1, the diameter of boss 19 is less than the upper surface diameter of spring compressor 1, the upper end of spring compressor 1 is provided with the entry needle over cap 12 of protection syringe needle 8, the diameter of entry needle over cap 12 bottom end cover mouth is slightly less than the diameter of boss 19, when entry needle over cap 12 is connected with boss 19, what entry needle over cap 12 can be fastening is enclosed within boss 19; The external loop diameter of described spring lower collar 4 is equal with the internal diameter of spring compressor 1, spring compressor 1 inner spring 2 is accommodated in when being provided with compression between spring compressor 1 and spring lower collar 4, spring 2 is enclosed within outside syringe needle 3, the upper end of spring 2 is fixedly connected to upper end in spring compressor 1, the lower end of spring 2 is connected in the endoporus of spring lower collar 4, and the periphery wall of spring compressor 1 is provided with shifting block 10.
First annular protrusion 21 that is provided with one week in the inwall upper end of spring compressor 1, the internal ring wall of spring lower collar 4 is provided with one week the second annular protrusion 20, the upper end of described spring 2 by with the first annular protrusion 21 clamping, spring compressor 1 is connected and fixed with the upper end of spring 2, the lower end of spring 2 by with the second annular protrusion 20 clamping, the lower end of spring 2 and spring lower collar 4 are connected and fixed.
As shown in Figure 2 and Figure 4, for spring compressor 1 and the first syndeton of spring lower collar 4, the periphery wall of spring lower collar 4 is provided with one week external screw thread 13, one week female thread 14 is provided with in the inwall lower end of spring compressor 1, spring compressor 1 is threaded with external screw thread 13 by female thread 14, spring compressor 1 is flexibly connected with spring lower collar 4, when stirring shifting block 10, spring compressor 1 is forced to rotate along axis, spring compressor 1 is got loose with being threaded of spring lower collar 4, due to the tension force of spring 2, spring compressor 1 is pushed open and is separated with spring lower collar 4, the needle portion of syringe needle 8 and needle body are accommodated in spring compressor 1 and spring 2 by spring compressor 1 and spring 2.
As shown in Figure 3, be spring compressor 1 and the second syndeton of spring lower collar 4, the both sides that the periphery wall lower end of spring lower collar 4 is relative are provided with the first groove 15 that the circumference along spring lower collar 4 is arranged, the second groove 16 that the axis along spring lower collar 4 is arranged is respectively equipped with on the periphery wall of spring lower collar 4, above the first groove 15, the upper surface of the through spring lower collar 4 of upper end difference of the second groove 16, the lower end of the second groove 16 is communicated with formation L-shaped with the first groove 15, in the inwall lower end of spring compressor 1, the both sides corresponding with the first groove 15 position are respectively equipped with projection 17, spring compressor 1 to be inserted in the second groove 16 by projection 17 and screws in the first groove 15 through the second groove 16, spring compressor 1 is flexibly connected with spring lower collar 4, when stirring shifting block 10, spring compressor 1 is forced to rotate along axis, projection 17 is moved towards the second groove 16 side, when projection 17 moves to the junction of the first groove 15 and the second groove 16, due to the tension force of spring 2, projection 17 is made to be pushed out outside the second groove 16, spring compressor 1 is separated with spring lower collar 4, the needle portion of syringe needle 8 and needle body are accommodated in spring compressor 1 and spring 2 by spring compressor 1 and spring 2.
The length of projection 17 is less than the width of the second groove 16, and the thickness of projection 17 is less than the width of the first groove 15.The length being preferably projection 17 equals the width of the second groove 16, and thickness is less than the width of the first groove 15, and the easy like this projection 17 that makes easily is pushed into the second groove 16 from the first groove 15.
As shown in Figure 4 and Figure 5, after syringe is finished using, injector promotes shifting block 10, spring compressor 1 is separated with spring lower collar 4, after spring 2 launches completely, spring compressor 1 is just in time by the storage of the needle portion of syringe needle 8 and spring compressor 1, can avoid so after injection because of in time or wear isolation glove time cannot cover entry needle over cap 12 in time or smoothly and cause syringe needle 8 to stab injector or patient, the problem of avoiding infection, and owing to adopting simple structure, do not affect the use of syringe itself, and it is simple to operate, deduct the action of entry needle over cap 12 on injection bonnet, thus injection can be completed faster.
Claims (9)
1. a safety injector, comprise syringe body (7), syringe body (7) comprises syringe cylinder (6) and is plugged on the syringe needle (3) of syringe cylinder (6) upper end, syringe needle (3) is provided with entry needle (8), entry needle over cap (12) is provided with outside entry needle (8), it is characterized in that: described syringe needle (3) is socketed with the spring compressor (1) be flexibly connected with syringe cylinder (6), spring compressor (1) is provided with for trepanning (9) on syringe needle (8) spring that stretches out, described entry needle over cap (12) is arranged on the upper end of spring compressor (1), spring (2) is provided with outside described syringe needle (3) and entry needle (8), the upper end of spring (2) is fixedly connected in spring compressor (1), the lower end of spring (2) is fixed on syringe cylinder (6), the periphery wall of spring compressor (1) is provided with shifting block (10), after stirring shifting block (10), spring compressor (1) departs from syringe cylinder (6), and spring (2) launches the tip portion of entry needle (8) is just in time accommodated in spring compressor (1) by spring compressor (1).
2. safety injector according to claim 1, it is characterized in that: front end syringe needle plug (11) extenal fixation of described syringe needle (3) is connected with the spring housing ring for fixing (5) of annular, spring housing ring for fixing (5) is provided with the spring lower collar (4) of annular, syringe needle plug (11) stretches out from spring lower collar (4), the external loop diameter of described spring lower collar (4) is equal with the internal diameter of spring compressor (1), the lower end of spring (2) is connected in the endoporus of spring lower collar (4), described spring compressor (1) is flexibly connected with spring lower collar (4).
3. safety injector according to claim 2, it is characterized in that: the upper surface of described spring housing ring for fixing (5) is provided with annular slot (18), the lower end of spring lower collar (4) is plugged in annular slot (18).
4. safety injector according to claim 3, it is characterized in that: the periphery wall of described spring lower collar (4) is provided with one week external screw thread (13), one week female thread (14) is provided with in the inwall lower end of spring compressor (1), described spring compressor (1) is threaded with external screw thread (13) by female thread (14), and spring compressor (1) is flexibly connected with spring lower collar (4).
5. safety injector according to claim 3, it is characterized in that: the periphery wall lower end of described spring lower collar (4) is provided with the first groove (15) that the circumference along spring lower collar (4) is arranged, on the periphery wall of spring lower collar (4), the top of the first groove (15) is provided with the second groove (16) that the axis along spring lower collar (4) is arranged, the upper surface of the through spring lower collar (4) in upper end of the second groove (16), the lower end of described second groove (16) is communicated with formation L-shaped with the first groove (15), projection (17) is provided with in the inwall lower end of spring compressor (1), with the first groove (15) corresponding section, position, described spring compressor (1) to be inserted in the second groove (16) by projection (17) and screws in the first groove (15) through the second groove (16), and spring compressor (1) is flexibly connected with spring lower collar (4).
6. safety injector according to claim 5, it is characterized in that: the length of described projection (17) is less than the width of the second groove (16), the thickness of projection (17) is less than the width of the first groove (15).
7. safety injector according to claim 6, it is characterized in that: described first groove (15), the second groove (16) and projection (17) are equipped with two, two the first grooves (15) are arranged on the relative both sides of spring lower collar (4) periphery wall with the second groove (16), and two projections (17) are separately positioned on the both sides, inwall lower end of the spring compressor (1) corresponding with the first groove (15) and the second groove (16).
8. the safety injector according to claim 1 to 7 any one, is characterized in that: the vertical sectional shape of described spring compressor (1) is trapezoidal.
9. safety syringe according to claim 8, it is characterized in that: the inwall upper end of described spring compressor (1) is provided with one week the first annular protrusion (21), the internal ring wall of spring lower collar (4) is provided with one week the second annular protrusion (20), the upper end of described spring (2) by with the first annular protrusion (21) clamping, spring compressor (1) is connected and fixed with the upper end of spring (2), the lower end of spring (2) by with the second annular protrusion (20) clamping, the lower end of spring (2) and spring lower collar (4) are connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736011.1U CN204275183U (en) | 2014-11-28 | 2014-11-28 | Safety injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736011.1U CN204275183U (en) | 2014-11-28 | 2014-11-28 | Safety injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204275183U true CN204275183U (en) | 2015-04-22 |
Family
ID=52858387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420736011.1U Expired - Fee Related CN204275183U (en) | 2014-11-28 | 2014-11-28 | Safety injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204275183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108853651A (en) * | 2018-07-31 | 2018-11-23 | 重庆医科大学附属第三医院(捷尔医院） | Aesthetic surgery syringe needle |
| CN108888838A (en) * | 2018-08-20 | 2018-11-27 | 吉林大学 | A kind of anti-needle stabs wound syringe needle |
| CN113599629A (en) * | 2021-08-30 | 2021-11-05 | 梁志兰 | Disposable syringe capable of preventing injury |
-
2014
- 2014-11-28 CN CN201420736011.1U patent/CN204275183U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108853651A (en) * | 2018-07-31 | 2018-11-23 | 重庆医科大学附属第三医院(捷尔医院） | Aesthetic surgery syringe needle |
| CN108888838A (en) * | 2018-08-20 | 2018-11-27 | 吉林大学 | A kind of anti-needle stabs wound syringe needle |
| CN113599629A (en) * | 2021-08-30 | 2021-11-05 | 梁志兰 | Disposable syringe capable of preventing injury |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161128 |