CN202724383U - Disposable safe self-destroying type injection device - Google Patents
Disposable safe self-destroying type injection device Download PDFInfo
- Publication number
- CN202724383U CN202724383U CN 201220371116 CN201220371116U CN202724383U CN 202724383 U CN202724383 U CN 202724383U CN 201220371116 CN201220371116 CN 201220371116 CN 201220371116 U CN201220371116 U CN 201220371116U CN 202724383 U CN202724383 U CN 202724383U
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- CN
- China
- Prior art keywords
- push rod
- conehead
- barb
- disposable safety
- safety self
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- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a disposable safe self-destroying type injection device, belongs to the field of medical apparatus, and particularly relates to the medical apparatus for disposable injection. The disposable safe self-destroying type injection device is characterized in that a cone head (6) with a reversed hook (8) is arranged above a rubber piston (3) at the top end of a push rod (4), and an included angle between the cone head (6) and the push rod (4) is 5-20 degrees. An elastic groove (7) is arranged in the center of the cone head (6), the reversed hook (8) is arranged outside the cone head (6), and the width of a prescribing hole on the middle portion of a needle seat (1) is greater than the diameter of an inner hole of the needle seat, and a pull back platform (5) is formed. Compared with the prior art, the disposable safe self-destroying type injection device enables a product to complete a self-destroying function because of a certain angle between the cone head (6) and the push rod (4).
Description
Technical field
Disposable safety self-ruined syringe belongs to medical instruments field, is specifically related to a kind of 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 consisted of 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 is complicated, cost is high, production efficiency is low, and the self-destroyed syringe Main Problems is complex structure in the market, and cost of manufacture is high.The applicant is in " disposable use the retraction type injection syringe " (patent No.: proposed the functional structure basically identical with this product ZL200820024429.4), but the bad situation of self-destruction effect that often occurs pulling back in the process of actual production assembling, this product is intended to overcome this problem.
Summary of the invention
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, the patient is painless, the convenient errorless disposable safety self-ruined syringe of self-destruction.
The technical scheme that its technical problem that solves this utility model adopts is: this disposable safety self-ruined syringe, comprise: needle stand, syringe sleeve, rubber piston, push rod, described rubber piston is positioned at push rod top, push rod is provided with the groove that is easy to fracture, it is characterized in that: rubber piston top in push rod top is provided with the conehead with barb, and conehead and push rod centrage are 5 ° ~ 20 ° angle; The conehead center is provided with elastic groove, and the conehead outside is provided with barb, and the needle stand middle part offers the platform of pulling back that matches with barb.
Preferably, described conehead and push rod centrage are 10 ° ~ 20 ° angle.
The described platform of pulling back is that width is less than the square hole of barb outer width greater than the needle stand diameter of bore.
The described groove that is easy to fracture is arranged on position, push rod upper middle rubber piston below, and groove is to the distance of the push rod bottom length greater than needle stand.
Described syringe sleeve and push rod adopt propylene PP once injection molded.
Described conehead adopts the Dispoable medical plastic production.
Described barb is inverted cone.
When promoting push rod forward, barb is stuck under the effect of elastic groove in the platform of pulling back of needle stand, drives needle stand when pulling back push rod and enters syringe sleeve.Because conehead and push rod have certain angle, enter the needle stand hole of the interior needle stand of syringe sleeve and former sleeve not on same straight line, syringe needle can be again because some uncertain factors be pushed out the people are caused injury.
Compared with prior art, the beneficial effect that disposable safety self-ruined syringe of the present utility model has is: the overall time self-destroyed syringe all adopts the Dispoable medical macromolecular material to make, because conehead and push rod have certain angle, the more effective function that makes product can finish self-destruction.Have simultaneously simple in structure, easy for operation, safe, etc. advantage.
Description of drawings
Fig. 1 is this utility model disposable safety self-ruined syringe internal structure sketch map.
Fig. 2 is the local structure for amplifying sketch map of this utility model disposable safety self-ruined syringe A part.
Fig. 3 is structural representation after the self-destruction of this utility model disposable safety self-ruined syringe.
Wherein: 1, needle stand 2, syringe sleeve 3, rubber piston 4, push rod 5, the platform 6 of pulling back, conehead 7, elastic groove 8, barb.
The specific embodiment
Fig. 1 ~ 3rd, most preferred embodiment of the present utility model.Below in conjunction with accompanying drawing disposable safety self-ruined syringe of the present utility model is described further.
As shown in Figure 1 and Figure 2, this disposable safety self-ruined syringe, mainly by needle stand 1, syringe sleeve 2, rubber piston 3, push rod 4, rubber piston 3 is positioned at push rod 4 tops, rubber piston 3 rears, position, push rod 4 upper middle are provided with the groove that is easy to fracture, and push rod 4 top rubber pistons 3 the place aheads are provided with conehead 6; Conehead 6 is 5 ° ~ 20 ° angles with push rod 4, and conehead 6 central inner are provided with elastic groove 7, and conehead 6 outsides are provided with barb 8, and needle stand 1 middle part opening square hole width forms the platform 5 of pulling back greater than the needle stand diameter of bore.
The platform 5 of pulling back is that width is less than the square hole of barb 8 outer width greater than the needle stand diameter of bore.The groove that is easy to fracture is arranged on rubber piston 3 belows, position, push rod 4 upper middle, and groove is to the distance of the push rod 4 bottoms length greater than needle stand 1.Syringe sleeve 2 and push rod 4 adopt propylene PP once injection molded.Conehead 6 adopts the Dispoable medical plastic production.Barb 8 is inverted cone.
Its work process is as follows: in use, promote push rod 4, because of the barb 8 of conehead 6 under the effect of elastic groove 7, conehead 6 enters needle stand 1 fully, the barb 8 of taper is stuck in the platform 5 of pulling back, and finishes injection process this moment.Because push rod 4 top part rubber pistons 3 belows are provided with the groove that fractures, conveniently finish to inject after pulling-pushing rod 4 retracts syringe sleeve 2 with needle stand 1 push rod 4 is fractureed, finish the self-destroying function of syringe.Sideling conehead 6 to needle stand hole one side, avoids when fractureing push rod 4 push rod 4 stressed again syringe needle the release to cause accidental injury to executing the pin personnel on the syringe needle band as shown in Figure 3.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of this utility model being made 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 embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (7)
1. disposable safety self-ruined syringe, comprise: needle stand (1), syringe sleeve (2), rubber piston (3), push rod (4), described rubber piston (3) is positioned at push rod (4) top, push rod (4) is provided with the groove that is easy to fracture, it is characterized in that: push rod (4) top rubber piston (3) top is provided with the conehead (6) with barb (8), and conehead (6) is 5 ° ~ 20 ° angle with push rod (4) centrage; Conehead (6) center is provided with elastic groove (7), and conehead (6) outside is provided with barb (8), and needle stand (1) middle part offers the platform of pulling back (5) that matches with barb (8).
2. disposable safety self-ruined syringe according to claim 1 is characterized in that: described conehead (6) is 10 ° ~ 20 ° angle with push rod (4) centrage.
3. disposable safety self-ruined syringe according to claim 1 is characterized in that: the described platform of pulling back (5) for width less than the square hole of barb (8) outer width greater than the needle stand diameter of bore.
4. disposable safety self-ruined syringe according to claim 1, it is characterized in that: the described groove that is easy to fracture is arranged on push rod (4) position, upper middle rubber piston (3) below, and groove is to the distance of push rod (4) the bottom length greater than needle stand (1).
5. disposable safety self-ruined syringe according to claim 1 is characterized in that: described syringe sleeve (2) and push rod (4) adopt propylene PP once injection molded.
6. disposable safety self-ruined syringe according to claim 1 is characterized in that: described conehead (6) employing Dispoable medical plastic production.
7. disposable safety self-ruined syringe according to claim 1, it is characterized in that: described barb (8) is inverted cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371116 CN202724383U (en) | 2012-07-30 | 2012-07-30 | Disposable safe self-destroying type injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371116 CN202724383U (en) | 2012-07-30 | 2012-07-30 | Disposable safe self-destroying type injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202724383U true CN202724383U (en) | 2013-02-13 |
Family
ID=47650140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371116 Expired - Lifetime CN202724383U (en) | 2012-07-30 | 2012-07-30 | Disposable safe self-destroying type injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202724383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006705A1 (en) * | 2017-07-05 | 2019-01-10 | 广东海鸥医疗器械股份有限公司 | Syringe |
-
2012
- 2012-07-30 CN CN 201220371116 patent/CN202724383U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006705A1 (en) * | 2017-07-05 | 2019-01-10 | 广东海鸥医疗器械股份有限公司 | Syringe |
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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 |
Effective date of registration: 20170822 Granted publication date: 20130213 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200822 Granted publication date: 20130213 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |