CN208974850U - Self-destruction syringe resilient ring piston - Google Patents
Self-destruction syringe resilient ring piston Download PDFInfo
- Publication number
- CN208974850U CN208974850U CN201721538942.0U CN201721538942U CN208974850U CN 208974850 U CN208974850 U CN 208974850U CN 201721538942 U CN201721538942 U CN 201721538942U CN 208974850 U CN208974850 U CN 208974850U
- Authority
- CN
- China
- Prior art keywords
- main body
- ring
- piston main
- piston
- elastic ring
- 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
Links
- 238000009434 installation Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to self-destruction syringe resilient ring pistons, piston main body including having piston rod mounting hole, the annular gasket that the elastic ring of piston main body front end is set and is arranged in front of piston main body, the piston main body first half is in pre-small post-large round table-like, it is latter half of cylindrical, the elastic ring is in big hollow round table-like in the small rear end in front end, there are gaps between the elastic ring and piston main body, connection ring is equipped between the front end of the elastic ring and the front end of piston main body, the inner ring of the connection ring is fixedly connected with piston main body, the outer ring of the connection ring is connect with elastic ring, the diameter of the rear end of the elastic ring is greater than the maximum gauge of piston main body, the center of the gasket is equipped with sebific duct, it is fixed with annular blade corresponding with connection ring on one side towards piston main body on the gasket, the utility model Versatility is good, can be used cooperatively with common piston rod and syringe, reduce use cost.
Description
Technical field
The utility model relates to a kind of syringe pistons, especially self-destruction syringe resilient ring piston.
Background technique
Existing syringe is typically all using primary with regard to needing discard to recycle, however some irregular medical treatment
Unit still will appear the case where secondary use, ensure the disposable reality of syringe there has been proposed self-destruction syringe thus
With, however the structure of existing self-destruction syringe is more complicated, piston rod, piston and syringe require special structure,
Complex manufacturing technology, cost of manufacture is higher, this is very unfavorable for the implementation of self-destruction syringe.
Summary of the invention
That the purpose of the utility model is to provide a kind of versatilities is good, does not need special piston rod and syringe, use cost
Low self-destruction syringe resilient ring piston.
Realize that the technical solution of the utility model aim is as follows:
Self-destruction syringe resilient ring piston, including having the piston main body of piston rod mounting hole, being arranged in piston master
The elastic ring of body front end and the annular gasket being arranged in front of piston main body, the piston main body first half is in pre-small post-large
It is round table-like, latter half of cylindrical, the elastic ring hollow round table-like, the elastic ring and the piston big in the small rear end in front end
There are gaps between main body, and connection ring is equipped between the front end of the elastic ring and the front end of piston main body, the connection ring
Inner ring is fixedly connected with piston main body, and the outer ring of the connection ring is connect with elastic ring, and the diameter of the rear end of the elastic ring is big
It is equipped with sebific duct in the center of the maximum gauge of piston main body, the gasket, the one side towards piston main body is fixed on the gasket
There is annular blade corresponding with connection ring.
After adopting the above structure, the utility model piston can be directly used cooperatively with pot type piston bar and syringe, pad
The sebific duct that piece is arranged in syringe at the outlet end of syringe, on gasket is squeezed into the outlet tube of syringe, piston rod and piston
Main body is pushed into syringe after being fixedly connected, and elastic ring is pressed between piston main body and syringe barrel and by piston main body
On syringe barrel, piston pushes gasket to by piston rod when injection, and when injection is completed, the blade on gasket just cuts connection ring
Fracture, separates elastic ring with piston main body, due to, there are gap, syringe can not extract again between piston main body and barrel,
Liquid medicine injection realizes the self-destruction of piston, prevents from being secondary use, and the utility model versatility is good, can be with common piston
Bar and syringe are used cooperatively, and reduce use cost.
Preferably, in order to improve the leakproofness of elastic ring, avoiding medical fluid, there is a situation where leakage, the bullets at elastic ring
Property ring outer surface be equipped with multiple annular protrusions.
Preferably, in order to facilitate the installation of piston and piston rod, the piston rod mounting hole includes being arranged in piston main body
Internal installation cavity and the connecting hole being in communication with the outside for installation cavity, the installation cavity is in a circular table shape, in this way, living
Stopper rod is protruded into can be completed in installation cavity and be connect with the end that installation cavity cooperates from connecting hole extruding.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram that the utility model and piston rod and syringe assemble.
In figure: 1 is piston rod mounting hole, and 2 be piston main body, and 3 be elastic ring, and 4 be annular gasket, and 5 be connection ring, and 6 are
Annular protrusion, 7 be sebific duct, and 8 be annular blade, and 11 be installation cavity, and 12 be connecting hole.
Specific embodiment
The utility model self-destruction syringe resilient ring piston includes the work with piston rod mounting hole 1 as shown in Figure 1
The annular gasket 4 filled in main body 2, the elastic ring 3 of piston main body front end is set and is arranged in front of piston main body, the piston
Main body first half is latter half of cylindrical in pre-small post-large round table-like, and the elastic ring is in big hollow in the small rear end in front end
Round table-like, there are gaps between the elastic ring and piston main body, between the front end of the elastic ring and the front end of piston main body
Equipped with connection ring 5, the inner ring of the connection ring is fixedly connected with piston main body, and the outer ring of the connection ring is connect with elastic ring,
The diameter of the rear end of the elastic ring is greater than the maximum gauge of piston main body, and the outer surface of the elastic ring is equipped with multiple convex annulars
Play 6, the center of the gasket is equipped with sebific duct 7, on the gasket towards piston main body be fixed on one side it is corresponding with connection ring
Annular blade 8, the piston rod mounting hole include installation cavity 11 inside piston main body being arranged in and for installation cavity
The connecting hole 12 being in communication with the outside, the installation cavity are in a circular table shape.
After adopting the above structure, the utility model piston can be directly used cooperatively with pot type piston bar 9 and syringe 10,
The sebific duct that gasket is arranged in syringe at the outlet end of syringe, on gasket is squeezed into the outlet tube of syringe, piston rod and work
Plug main body is pushed into syringe after being fixedly connected, and elastic ring compresses between piston main body and syringe barrel and by piston main body
On syringe barrel, piston pushes gasket to by piston rod when injection, and when injection is completed, the blade on gasket will just connect ring cutting
It cuts off and splits, separate elastic ring with piston main body, since, there are gap, syringe can not be taken out again between piston main body and barrel
It takes, liquid medicine injection, realizes the self-destruction of piston, prevent from being secondary use, the utility model versatility is good, can be with common work
Stopper rod and syringe are used cooperatively, and reduce use cost.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (3)
1. self-destruction syringe resilient ring piston, it is characterised in that: including the piston main body with piston rod mounting hole, setting
Elastic ring in piston main body front end and the annular gasket that is arranged in front of piston main body, before the piston main body first half is in
Big round table-like, latter half of cylindrical, the elastic ring hollow round table-like, the elasticity big in the small rear end in front end after small
There are gaps between ring and piston main body, and connection ring is equipped between the front end of the elastic ring and the front end of piston main body, described
The inner ring of connection ring is fixedly connected with piston main body, and the outer ring of the connection ring is connect with elastic ring, the rear end of the elastic ring
Diameter be greater than the maximum gauge of piston main body, the center of the gasket is equipped with sebific duct, towards piston main body on the gasket
It is fixed with annular blade corresponding with connection ring on one side.
2. self-destruction syringe resilient ring piston according to claim 1, it is characterised in that: the appearance of the elastic ring
Face is equipped with multiple annular protrusions.
3. self-destruction syringe resilient ring piston according to claim 1, it is characterised in that: the piston rod mounting hole
Including the connecting hole that the installation cavity inside piston main body is arranged in and is in communication with the outside for installation cavity, the installation is empty
Chamber is in a circular table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538942.0U CN208974850U (en) | 2017-11-16 | 2017-11-16 | Self-destruction syringe resilient ring piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538942.0U CN208974850U (en) | 2017-11-16 | 2017-11-16 | Self-destruction syringe resilient ring piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208974850U true CN208974850U (en) | 2019-06-14 |
Family
ID=66777100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721538942.0U Expired - Fee Related CN208974850U (en) | 2017-11-16 | 2017-11-16 | Self-destruction syringe resilient ring piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208974850U (en) |
-
2017
- 2017-11-16 CN CN201721538942.0U patent/CN208974850U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190614 |