CN202933324U - Film-coated rubber piston for pre-embedded injector - Google Patents
Film-coated rubber piston for pre-embedded injector Download PDFInfo
- Publication number
- CN202933324U CN202933324U CN 201220625953 CN201220625953U CN202933324U CN 202933324 U CN202933324 U CN 202933324U CN 201220625953 CN201220625953 CN 201220625953 CN 201220625953 U CN201220625953 U CN 201220625953U CN 202933324 U CN202933324 U CN 202933324U
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- China
- Prior art keywords
- rubber piston
- film
- main body
- plated film
- coated rubber
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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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Abstract
The utility model provides a film-coated rubber piston for a pre-embedded injector. The film-coated rubber piston for the pre-embedded injector comprises a rubber piston main body, wherein an annular sealing rib is arranged on the lateral face of the rubber piston main body; an anti-adhesion bump is arranged on the bottom plane of the rubber piston main body; and a coating film is arranged on the surface of the rubber piston. The film-coated rubber piston for the pre-embedded injector provided by the utility model uses modified crosslinkable polydimethylsiloxane with an amino group; the modified crosslinkable polydimethylsiloxane with the amino group contains a small amount of active groups at the polymer chain end; the active groups can be adhered to the surface of the rubber piston to be processed in a cross-linking manner; the film-coated rubber piston has the characteristics of good surface smoothness, difficulty in dropping particles, and better sliding property in a needle tube of the pre-embedded injector; and no siliconizing is realized without adding liquid dimethyl silicone oil in a washing process.
Description
Technical field
This utility model belongs to technical field, relates in particular to a kind of rubber piston.
Background technology
Conventional pre-encapsulated injector with the common surface treatment method of piston is: with the rubber piston after die-cut, after prerinse, in suitable clean container, add a certain amount of and liquid dimethicone viscosity, with certain water temperature, time and mixing speed, rubber piston is carried out silicidation.This traditional silicidation mode, for the pre-encapsulated injector of encapsulation contact biologics, rubber piston directly contacts with these biologics for a long time, very easily causes hidden danger of quality, such as particulate matter exceeds standard, the problems such as protein aggregation distortion that cause because of dimethicone.
The utility model content
Technical problem to be solved in the utility model provides a kind of pre-encapsulated injector plated film rubber piston for the deficiency in background technology.
In order to address the above problem by the following technical solutions: a kind of pre-encapsulated injector plated film rubber piston, comprise the rubber piston main body, rubber piston main body side is provided with the ring packing convex tendon, and the baseplane of rubber piston main body is provided with antiseized projection, and described rubber piston surface is established plated film.
Described rubber piston surface comprises rubber piston body surfaces, ring packing convex tendon surface and antiseized convex surfaces.
Described plated film adopts modification crosslinkable polydimethylsiloxane with amino as material of main part.
Described modification crosslinkable polydimethylsiloxane with amino is sprayed on rubber piston surface, and is heating and curing on rubber piston surface by the tunnel.
This utility model adopts the modification crosslinkable polydimethylsiloxane with amino, and it contains a small amount of active group at the polymer chain end, and these groups can crosslinkedly be attached to pending rubber piston surface; Rubber piston after plated film has that surface flatness is good, difficult drop-off microgranule, piston better characteristics of sliding capability in the needle tubing of pre-encapsulated injector; In cleaning process, no longer add the liquid dimethicone, realize exempting from silicidation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
The specific embodiment
As shown in Figure 1, 2, a kind of pre-encapsulated injector plated film rubber piston comprises rubber piston main body 1, and rubber piston main body 1 side is provided with ring packing convex tendon 2, the baseplane 3 of rubber piston main body is provided with the antiseized projection of cross, and described rubber piston surface is established plated film 5.Plated film adopts modification crosslinkable polydimethylsiloxane with amino as material of main part.
Employing with the modification crosslinkable polydimethylsiloxane of amino as material of main part; get the rear rubber piston film of sulfuration; single face carries out spray treatment; mainly be sprayed on rubber piston main body 1 surface, ring packing convex tendon 2 surfaces, antiseized convex surfaces, the baseplane 3 of rubber piston main body and the plane, top 4 of rubber piston main body; adopt the mode of tunnel heating hot setting film forming, make the modification crosslinkable polydimethylsiloxane with amino form layer protecting film.
Employing is with the modification crosslinkable polydimethylsiloxane of amino, and it contains a small amount of active group at the polymer chain end, and these groups can crosslinkedly be attached to pending rubber piston surface; After adopting sulfuration, rubber piston full wafer single face carries out spray treatment, the hot setting film forming, and surface flatness is good so the plated film rubber piston has, difficult drop-off microgranule, piston sliding capability in the needle tubing of pre-encapsulated injector are better; Process due to the piston after sulfuration is carried out integral spray, so rubber piston in cleaning process, can no longer add the liquid dimethicone, realize exempting from silicidation.
Claims (4)
1. a pre-encapsulated injector plated film rubber piston, comprise the rubber piston main body, and rubber piston main body side is provided with the ring packing convex tendon, and the baseplane of rubber piston main body is provided with antiseized projection, it is characterized in that: described rubber piston surface is established plated film.
2. pre-encapsulated injector according to claim 1 plated film rubber piston is characterized in that: described rubber piston surface comprises rubber piston body surfaces, ring packing convex tendon surface and antiseized convex surfaces.
3. pre-encapsulated injector according to claim 1 and 2 plated film rubber piston is characterized in that: described plated film adopts modification crosslinkable polydimethylsiloxane with amino as material of main part.
4. pre-encapsulated injector according to claim 3 plated film rubber piston, it is characterized in that: described modification crosslinkable polydimethylsiloxane with amino is sprayed on rubber piston surface, and is heating and curing on rubber piston surface by the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625953 CN202933324U (en) | 2012-11-23 | 2012-11-23 | Film-coated rubber piston for pre-embedded injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625953 CN202933324U (en) | 2012-11-23 | 2012-11-23 | Film-coated rubber piston for pre-embedded injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202933324U true CN202933324U (en) | 2013-05-15 |
Family
ID=48317589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625953 Expired - Lifetime CN202933324U (en) | 2012-11-23 | 2012-11-23 | Film-coated rubber piston for pre-embedded injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202933324U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705186A (en) * | 2013-10-09 | 2016-06-22 | 阿普塔斯黛美简易股份公司 | Sliding plunger-plug and syringe device comprising such a plunger-plug |
| CN106163593A (en) * | 2014-04-02 | 2016-11-23 | 阿普塔斯黛美简易股份公司 | Counterflow-preventing injector assembly |
| CN107684647A (en) * | 2016-08-03 | 2018-02-13 | 住友橡胶工业株式会社 | Medical syringe, sealing gasket and its manufacture method |
| CN108687864A (en) * | 2018-05-17 | 2018-10-23 | 郑州翱翔医药科技股份有限公司 | A kind of blanking units and method for die cutting for exempting from silication piston |
| CN114514045A (en) * | 2019-09-19 | 2022-05-17 | 阿文特公司 | Plunger seal with reduced surface contact |
-
2012
- 2012-11-23 CN CN 201220625953 patent/CN202933324U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705186A (en) * | 2013-10-09 | 2016-06-22 | 阿普塔斯黛美简易股份公司 | Sliding plunger-plug and syringe device comprising such a plunger-plug |
| CN106163593A (en) * | 2014-04-02 | 2016-11-23 | 阿普塔斯黛美简易股份公司 | Counterflow-preventing injector assembly |
| CN107684647A (en) * | 2016-08-03 | 2018-02-13 | 住友橡胶工业株式会社 | Medical syringe, sealing gasket and its manufacture method |
| CN107684647B (en) * | 2016-08-03 | 2021-07-09 | 住友橡胶工业株式会社 | Medical syringe, gasket, and method for producing same |
| CN108687864A (en) * | 2018-05-17 | 2018-10-23 | 郑州翱翔医药科技股份有限公司 | A kind of blanking units and method for die cutting for exempting from silication piston |
| CN114514045A (en) * | 2019-09-19 | 2022-05-17 | 阿文特公司 | Plunger seal with reduced surface contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU AOXIANG PHARMACEUTIAL PACKING CO., LTD. Free format text: FORMER NAME: ZHENGZHOU AOXIANG PHARMACEUTICAL PACKING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 452483 hi tech Industrial Park, three li, Dengfeng, Henan, Zhengzhou Patentee after: ZHENGZHOU AOXIANG PHARMACEUTICAL PACKING Co.,Ltd. Address before: 452483 Dengfeng City, Henan Province, Li Zhuang Industrial Park, the three Patentee before: ZHENGZHOU AOXIANG PHARMACEUTICAL PACKING Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |