CN204219529U - Safe self-breaking syringe - Google Patents
Safe self-breaking syringe Download PDFInfo
- Publication number
- CN204219529U CN204219529U CN201420616008.6U CN201420616008U CN204219529U CN 204219529 U CN204219529 U CN 204219529U CN 201420616008 U CN201420616008 U CN 201420616008U CN 204219529 U CN204219529 U CN 204219529U
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- Prior art keywords
- syringe
- push rod
- stop
- return
- breaking
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Abstract
A kind of safe self-breaking syringe, belongs to medical instruments field, is specifically related to a kind of syringe that can realize self-destroying function.Comprise syringe (2) and push rod (4), syringe needle (1) is arranged on the agent outlet end of syringe (2), push rod (4) is arranged in syringe (2), plug (3) is installed in push rod (4) termination, it is characterized in that: syringe (2) upper end arranges stop-return slot (5), push rod (4) above arranges the check device matched with stop-return slot (5), and check device is arranged on the top of push rod (4), the below of pushing hands (9).Stop-return slot and the check device structure of this safe self-breaking syringe are simple, well meet the requirement of self-destruction after using, the plug pull-out syringe when drawing medicament can be avoided, and the sense that pauses can not be produced during injection, alleviate the pain sensation of ill people, make simple, cost is low, easy to use, be applicable to promoting on a large scale.
Description
Technical field
Safe self-breaking syringe, belongs to medical instruments field, is specifically related to a kind of syringe that can realize self-destroying function.
Background technology
Syringe is medically requisite a kind of disposable utensil, although syringe all specifies to carry out single use, but in order to really accomplish to avoid syringe repeatedly to use, also some syringe starts design and installs self-desttruction equipment additional, make syringe after a single use, functionally cannot reuse, from root, this just ensure that syringe is no longer recycled.Existing, the design of self-destroyed syringe is divided into two kinds of principles substantially: one is fractureed by push rod after injection, thus reaches self-destruction object: another kind is that injection rear push-rod cannot retract and reuses, to reach self-destruction object.Front a kind of making and operation are all comparatively complicated, need after injection people for fractureing, so be not promoted use again.A kind of mode after more self-destroyed syringe adopts, but in use have also discovered some problems, such as: 1, because check device design is unreasonable, when injecting again and push push rod, easily cause pause, cause injection process not smooth, can shake be produced, add the pain sensation of injection patient; 2, adopt asymmetrical design mode to realize non-return self-destruction, design is complicated, considerably increases cost of manufacture.
Chinese utility model patent ZL 201420039515.8 discloses a kind of novel self-destroyed syringe, and it is by being arranged on the snap ring on syringe top and being arranged on the shell fragment of push rod middle and upper part to realize the object of non-return self-locking.The novel advantage of this use is mainly: shell fragment is symmetrical, can not produce the sense that pauses during injection; Problems existing mainly contains: 1, check device structure is too complicated; 2, syringe does not have stopping means, there will be the situation of plug pull-out syringe.
Summary of the invention
Problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of check device structure simple, make simple safe self-breaking syringe.
This utility model solves the technical scheme that its technical problem adopts: this safe self-breaking syringe, comprise syringe needle, syringe and push rod, syringe needle is arranged on the agent outlet end of syringe, push rod is arranged in syringe, plug is installed in push rod termination, it is characterized in that: its upper end arranges stop-return slot, push rod is arranged the check device matched with stop-return slot, check device is arranged on the top of push rod, the below of pushing hands.The design of stop-return slot and check device, makes the self-distruction structure of safe self-breaking syringe simple.
Described check device comprises the non-return thin plate be axially disposed within push rod, and non-return thin plate lateral symmetry is provided with the boss wider than push rod, and boss is taper wide at the top and narrow at the bottom, has non-return platform on the upside of boss, is provided with elastic groove in the middle of non-return thin plate.The check device of symmetric design makes injection process more smooth and easy, and check device and stop-return slot, by flexibly connecting, can not produce vibration when injecting, and reduce the misery of injection patient.
Preferably, the outside of described syringe is provided with holding handle at stop-return slot place, and holding handle top external diameter is greater than the external diameter of holding handle bottom.
Preferably, that to be top be described stop-return slot is cylindric, bottom is cone shape cavity.
Preferably, described syringe inwall is provided with spacing preiection in stop-return slot lower end, and push rod bottom arranges rounded tabs.Spacing preiection and rounded tabs can avoid the time plug drawing medicament to pull out syringe, avoid medicament waste.
Preferably, described spacing preiection is annular space or the continuous distribution projection at syringe inwall.
Preferably, it is bonding that described syringe needle and syringe pass through adhesive.
Compared with prior art, the beneficial effect that this use is novel had is:
1, stop-return slot syringe designed matches with the check device that push rod designs, and during use, the check device on push rod is once enter stop-return slot, non-return platform is just stuck in below stop-return slot, realization prevents from drawing, and check device is cone-shaped slice, and centre has elastic groove, realize stop-return slot to coordinate with the flexibility of check device, can not produce when injecting the sense that pauses, reducing the misery of patient, simple to operate, and stop-return slot and check device structure are simply, the effect of the rear self-destruction of injection can be met.
2, the check device structure on push rod is simple, adopts the non-return platform of symmetric design to make injection process more smooth and easy.
3, the spacing preiection below stop-return slot can be avoided, using syringe to draw plug pull-out syringe in the process of medicament, causing medicament to waste.
4, the plug on push rod fully contacts with syringe inwall endoporus, makes the medicine noresidue in syringe.
5, this utility model structure is simple, reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is that the master of safe self-breaking syringe looks cross-sectional schematic.
Fig. 2 is that the master after safe self-breaking syringe self-destruction looks cross-sectional schematic.
Fig. 3 is the schematic top plan view of push rod.
The schematic front view of the push rod of barb is returned till Fig. 4 is check device.
In figure: 1, syringe needle 2, syringe 3, plug 4, push rod 5, stop-return slot 6, elastic groove 7, non-return thin plate 701, boss 8, spacing preiection 9, pushing hands 10, rounded tabs 11, holding handle 12, non-return platform.
Detailed description of the invention
Fig. 1 ~ 3 are most preferred embodiments of the present utility model, are described further below in conjunction with accompanying drawing 1 ~ 3 pair of this utility model.
Safe self-breaking syringe, comprises syringe needle 1, syringe 2 and push rod 4, and syringe needle 1 is arranged on the agent outlet end of syringe 2, and push rod 4 is arranged in syringe 2, and plug 3 is installed in push rod 4 termination.Syringe 2 upper end arranges stop-return slot 5, and push rod 4 is arranged the check device matched with stop-return slot 5, check device is arranged on the top of push rod 4, the below of pushing hands 9.
Embodiment 1
As shown in Figure 1: syringe 2 is long tubulars of cylinder, the agent outlet end diameter of syringe 2 lower end is less than top, is used for installing syringe needle 1.Syringe 2 upper end inwall arranges the stop-return slot 5 around inwall, and that to be top be stop-return slot 5 is cylindric, bottom is cone shape cavity.Stop-return slot 5 lower end is provided with spacing preiection 8, and spacing preiection is the annular protrusion of continuous distribution at syringe 2 inwall.The outside of syringe 2 is provided with holding handle 11 at stop-return slot 5 place, and the external diameter on holding handle 11 top is greater than the external diameter of bottom.Whole syringe 2 is one-time formed.
Spacing preiection 8 can also be the projection being disposed on syringe 2 inwall.
Push rod 4 is criss-cross elongated rod shape, and push rod 4 middle and upper part, the position of matching with stop-return slot 5 arrange check device.Check device comprises axial non-return thin plate 7, the width of non-return thin plate 7 is identical with the width of push rod 4, non-return thin plate 7 lateral symmetry is provided with the boss 701 wider than push rod 4, boss 701 is taper wide at the top and narrow at the bottom, the upside of boss 701 has non-return platform 12, and the centre of non-return thin plate 7 is provided with elastic groove 6.Push rod 4 upper end is provided with circular pushing hands 9, and push rod 4 lower end is provided with the rounded tabs 10 that diameter is slightly smaller than syringe 2 inner chamber.The conehead installing plug 3 is used to below rounded tabs 10.Whole push rod 4 is one-time formed.
As shown in Figure 1 and 2: plug 3 is arranged on the conehead of push rod 4, the push rod 4 installing plug 3 puts in syringe 2, and can slide along syringe 2 inwall, and syringe needle 1 is bonded in the agent outlet end of syringe 2 by adhesive.After having injected, non-return platform 12 snaps in stop-return slot 5, makes push rod 4 cannot again pull out absorption medicament, reaches the object of self-destruction.
The operation principle of safe self-breaking syringe is as follows: safe self-breaking syringe is not when using, and the non-return platform 12 of check device is positioned at outside stop-return slot 5.Suck medicament time, by the extraction of the push rod 4 with plug 3, make medicament enter in the cavity of syringe 2 by syringe needle 1, the spacing preiection 8 of syringe 2 upper end can prevent plug 3 from extracting syringe 2 out, avoid medicament to waste situation.During injection, the push rod 4 of band plug 3 moves downward, and inject in patient body by the medicament in syringe by syringe needle 1, the plug 3 on push rod 4 fully contacts with syringe 2 inwall, makes medicament noresidue.Non-return platform 12 fixes in stop-return slot 5, forms self-destruction.If want to retract push rod 4, stop-return slot 5 and non-return platform 12 are stuck, and push rod 4 cannot be pulled out, prevent the secondary of syringe from using.Adopt between non-return platform 12 and stop-return slot 5 and flexibly connect, because elastic groove 6 non-return platform 12 can snap in stop-return slot 5 very smoothly, can not produce when injecting the sense that pauses, reducing the misery of patient.
Embodiment 2
As shown in Figure 4: check device arranges symmetrical non-return barb respectively, and all the other structures, shape and installation and occupation mode are as embodiment 1.
The above, it is only preferred embodiment of the present utility model, be not restriction this utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (7)
1. a safe self-breaking syringe, comprise syringe needle (1), syringe (2) and push rod (4), syringe needle (1) is arranged on the agent outlet end of syringe (2), push rod (4) is arranged in syringe (2), plug (3) is installed in push rod (4) termination, it is characterized in that: syringe (2) upper end arranges stop-return slot (5), push rod (4) above arranges the check device matched with stop-return slot (5), and check device is arranged on the top of push rod (4), the below of pushing hands (9).
2. safe self-breaking syringe according to claim 1, it is characterized in that: described check device comprises the non-return thin plate (7) be axially disposed within push rod (4), non-return thin plate (7) lateral symmetry is provided with the boss (701) wider than push rod (4), boss (701) is taper wide at the top and narrow at the bottom, boss (701) upside has non-return platform (12), is provided with elastic groove (6) in the middle of non-return thin plate (7).
3. safe self-breaking syringe according to claim 1, is characterized in that: the outside of described syringe (2) is provided with holding handle (11) at stop-return slot (5) place, and holding handle (11) top external diameter is greater than the external diameter of holding handle (11) bottom.
4. safe self-breaking syringe according to claim 1, is characterized in that: that to be top be described stop-return slot (5) is cylindric, bottom is cone shape cavity.
5. safe self-breaking syringe according to claim 1, is characterized in that: described syringe (2) inwall is provided with spacing preiection (8) in stop-return slot (5) lower end, and push rod (4) bottom arranges rounded tabs (10).
6. safe self-breaking syringe according to claim 5, is characterized in that: described spacing preiection (8) is for annular space or continuous distribution are in the projection of syringe (2) inwall.
7. safe self-breaking syringe according to claim 1, is characterized in that: described syringe needle (1) is bonding by adhesive with syringe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616008.6U CN204219529U (en) | 2014-10-23 | 2014-10-23 | Safe self-breaking syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616008.6U CN204219529U (en) | 2014-10-23 | 2014-10-23 | Safe self-breaking syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204219529U true CN204219529U (en) | 2015-03-25 |
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ID=52917680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420616008.6U Expired - Fee Related CN204219529U (en) | 2014-10-23 | 2014-10-23 | Safe self-breaking syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204219529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857603A (en) * | 2015-05-29 | 2015-08-26 | 江苏康宝医疗器械有限公司 | Disposable safe self-destruction injection syringe |
-
2014
- 2014-10-23 CN CN201420616008.6U patent/CN204219529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857603A (en) * | 2015-05-29 | 2015-08-26 | 江苏康宝医疗器械有限公司 | Disposable safe self-destruction injection syringe |
| CN104857603B (en) * | 2015-05-29 | 2018-01-05 | 江苏康宝医疗器械有限公司 | Disposable safety self-breaking injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170822 Granted publication date: 20150325 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200822 Granted publication date: 20150325 |
|
| 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: 20150325 Termination date: 20211023 |