CN204723520U - Zero type circle rubber plug type insulin syringe - Google Patents
Zero type circle rubber plug type insulin syringe Download PDFInfo
- Publication number
- CN204723520U CN204723520U CN201520359184.0U CN201520359184U CN204723520U CN 204723520 U CN204723520 U CN 204723520U CN 201520359184 U CN201520359184 U CN 201520359184U CN 204723520 U CN204723520 U CN 204723520U
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- Prior art keywords
- type circle
- plug
- zero type
- cylindrical shell
- push
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Abstract
The utility model discloses a kind of zero type circle rubber plug type insulin syringe, comprise needle tubing (1), zero type circle plug (2), push rod (3), cylindrical shell (4) and helmet (5), needle tubing (1) is arranged on cylindrical shell (4) front end and the integrated needle stand of cylindrical shell, push rod (3) front end molding push-pull ring (31), it is characterized in that: the centre position of push-pull ring (31) is provided with the groove (32) of installation zero type circle plug, and push rod (3) is arranged in cylindrical shell (4) after assembling zero type circle plug (2).This utility model push-and-pull is light, good airproof performance, low cost of manufacture, zero type circle plug and medicinal liquid contact area very little, the pollution of plug to medicinal liquid is greatly reduced, and product is safer.
Description
Technical field
This utility model relates to syringe, belongs to area of medical devices, particularly relates to a kind of zero type circle rubber plug type insulin syringe.
Background technology
The rubber piston that existing insulin syringe push rod front end is installed, comprise rubber piston body and the rubber piston cavity for connecting injector push-rod, rubber piston cavity and push rod are interference fit, most of rubber piston body is equipped with two seals ring structure, i.e. top edge and feather edge two seals ring, the arc radius at this structure rubber piston packing ring ring point place is larger, the angle of sealing ring ring point is because of demoulding difficulty, make the angle being greater than 90 degree, protrude not obvious, cause sealing ring ring point large with cylinder inboard wall frictional resistance, push rod push-and-pull difficulty, because the poor flexibility of material causes the problems such as poor sealing, and injection time rubber piston body and medicinal liquid contact surface large, certain pollution can be caused to medicinal liquid, product is dangerous.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of zero type circle rubber plug type insulin syringe, the rubber piston simplified design of current labyrinth become the plug of zero type cast formula for injection, this structure of insulin injector is simple, low cost of manufacture, to connect frictional resistance little with cylinder inboard wall, and few with medicinal liquid contact surface, push-and-pull is light, good airproof performance, safer.
In order to solve the problems of the technologies described above, this utility model adopts following technical solution: this zero type circle rubber plug type insulin syringe comprises needle tubing, zero type circle plug, push rod, cylindrical shell and helmet, needle tubing is arranged on barrel front end and the integrated needle stand of cylindrical shell, push rod front end molding push-pull ring, it is characterized in that: the centre position of push-pull ring is provided with the groove of installation zero type circle plug, and push rod is arranged in cylindrical shell after assembling zero type circle plug.
Wherein, described zero type circle plug is formed by the die casting of medical silica-gel material.
The utility model has the advantages that: 1, zero type circle plug be arranged in groove with injector cartridge contact internal walls after the distortion that produces can only within groove scope, therefore zero type circle plug is propped up by push-pull ring, without the need to very strong elasticity, just stronger sealing function can be played; 2, the radius of the ring point circular arc of zero type circle plug is less, the angle of ring point dual-side is less than 90 °, zero type circle plug like this protrudes obviously, further enhancing sealing property, and it is relatively little with the contact surface of injector cartridge inwall, frictional resistance correspondingly and between simplified inwall is less, makes push rod push-and-pull light; 3, this zero type circle plug adopts medical silica-gel material injection to form, and avoids and adopts rubber piston to the pollution of medicinal liquid, and solves because poor flexibility causes syringe to occur the problem of leaking; 4, zero type circle plug structure is simple, decreases the raw material usage making plug, energy savings; 5, zero type circle plug and medicinal liquid contact area very little, the pollution of plug to medicinal liquid is greatly reduced, and product is safer.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is this utility model structural representation.
Fig. 2 is the partial enlarged view of C in Fig. 1.
In figure: 1 needle tubing, 2 zero type circle plugs, 3 push rods, 31 push-pull rings, 32 grooves, 4 cylindrical shells, 5 helmets.
Detailed description of the invention
As shown in Figure 1, 2, this zero type circle rubber plug type insulin syringe comprises needle tubing 1, zero type circle plug 2, push rod 3, cylindrical shell 4 and helmet 5, needle tubing 1 is arranged on cylindrical shell 4 front end and the integrated needle stand 41 of cylindrical shell, push rod 3 front end molding push-pull ring 31, it is characterized in that: the centre position of push-pull ring 31 is provided with the groove 32 of installation zero type circle piston, and push rod 3 is arranged in cylindrical shell 4 after assembling zero type circle plug 2.
Wherein, described zero type circle plug 2 is formed by the die casting of medical silica-gel material.
Above-mentioned only for illustration of the utility model, and be not limitation of the utility model, those skilled in the art, when not departing from the spirit and scope of utility model, various change and modification also belong to category of the present utility model.
Claims (2)
1. zero type circle rubber plug type insulin syringe, comprise needle tubing (1), zero type circle plug (2), push rod (3), cylindrical shell (4) and helmet (5), needle tubing (1) is arranged on cylindrical shell (4) front end and the integrated needle stand of cylindrical shell, push rod (3) front end molding push-pull ring (31), it is characterized in that: the centre position of push-pull ring (31) is provided with the groove (32) can installing zero type circle plug, push rod (3) is arranged in cylindrical shell (4) after assembling zero type circle plug (2).
2. zero type circle rubber plug type insulin syringe according to claim 1, is characterized in that: zero type circle plug (2) is formed by the die casting of medical silica-gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359184.0U CN204723520U (en) | 2015-05-29 | 2015-05-29 | Zero type circle rubber plug type insulin syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359184.0U CN204723520U (en) | 2015-05-29 | 2015-05-29 | Zero type circle rubber plug type insulin syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204723520U true CN204723520U (en) | 2015-10-28 |
Family
ID=54381909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520359184.0U Active CN204723520U (en) | 2015-05-29 | 2015-05-29 | Zero type circle rubber plug type insulin syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204723520U (en) |
-
2015
- 2015-05-29 CN CN201520359184.0U patent/CN204723520U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |