CN215537342U - Device for preparing pre-filled and sealed syringe protective cap - Google Patents
Device for preparing pre-filled and sealed syringe protective cap Download PDFInfo
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- CN215537342U CN215537342U CN202120293223.7U CN202120293223U CN215537342U CN 215537342 U CN215537342 U CN 215537342U CN 202120293223 U CN202120293223 U CN 202120293223U CN 215537342 U CN215537342 U CN 215537342U
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- protective cap
- layer
- cavity
- syringe
- filled
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Abstract
The utility model discloses a device for preparing a pre-encapsulated syringe protective cap, which comprises a protective cap mold, wherein the protective cap mold comprises a cavity which is communicated up and down, an inlaying piece which is inserted into the cavity and is used for being matched with an injection end of a syringe, and a flower biting layer for preventing the protective cap from being adhered to the injection end is arranged on the surface of the inlaying piece. According to the utility model, the originally integrally processed mould is divided into the cavity and the splicing piece and then assembled together, and the splicing piece is assembled with the cavity after the surface is subjected to flower biting, so that the effects of flower biting inside the product and flower biting outside the product can be achieved.
Description
Technical Field
The utility model relates to a device for preparing a rubber plug protective cap, in particular to a device for preparing a protective cap of a pre-filled and sealed syringe.
Background
The pre-filled syringe elastomer (rubber) seal comprises a piston and a protective cap inside a sleeve. The protective cap comprises a rubber plug, the rubber plug is arranged in the rigid sleeve, the locking luer adapter is fixed on the conical head of the syringe needle cylinder, the locking luer adapter is in threaded connection with the rigid sleeve, the rubber plug is of a hollow structure, and the rubber plug is matched with the conical head of the syringe needle cylinder to seal the syringe.
After the product is sterilized (ethylene oxide sterilization or moist heat sterilization), the inside of the rubber plug is easily adhered to the outside of the conical head of the syringe barrel, so that although the sealing effect can be achieved, the adhering force is too large, the torsion/pulling force for unscrewing the protective cap is too large during use, and the deformation of the elastomer can be caused, thereby causing inconvenience in use.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a device for preparing a pre-encapsulated syringe protective cap, which has a simple structure, ensures that the obtained protective cap is not adhered to a syringe, and ensures that the protective cap is not easy to deform.
The technical scheme is as follows: the device used in the method for preparing the pre-encapsulated syringe protective cap comprises a protective cap mold, wherein the protective cap mold comprises a cavity which is communicated up and down, an insert piece which is inserted into the cavity and is used for being matched with the injection end of a syringe, and a flower biting layer for preventing the protective cap from being adhered to the injection end is arranged on the surface of the insert piece.
Preferably, the anti-sticking layer is a frosted layer.
Preferably, the release layer has a thickness of less than 0.1 mm.
Preferably, the knurl layer is a metal layer.
Preferably, the contact surface of the insert piece and the cavity is free of a biting layer. When the insert piece is assembled with the cavity and then the protective cap is produced, the integrity of the protective cap is not affected.
The pre-encapsulated syringe protective cap prepared by the device comprises a protective cap body, wherein an anti-sticking layer for preventing the protective cap from being stuck with an injection end is arranged on the contact surface of the protective cap body and the injection end of the syringe.
Preferably, the anti-sticking layer is a frosted layer. The surface is frosted and treated to make the surface become coarse, and the inside conical head area of contact with the syringe top that protects the cap reduces, reduces and glues the even risk.
Preferably, the release layer has a thickness of less than 0.1 mm.
Preferably, the area of the anti-adhesion layer occupies at least 1/3 of the contact surface area of the cap body and the injection end of the injector.
The method for preparing the pre-filled and sealed syringe protective cap by using the device comprises the following steps:
(A) forming a flower biting layer on the surface of the mosaic piece matched with the injection end of the injector by using a flower biting process, wherein the mosaic piece with the flower biting layer formed on the surface and the cavity form a protective cap mold together;
(B) and (D) preparing the pre-filled and sealed syringe protective cap in the protective cap mould obtained in the step (A) by using a molding process.
Has the advantages that: compared with the prior art, the utility model has the following outstanding effects: 1. the mould that will originally wholly process falls into the die cavity, assembles together behind two subassemblies of inlaying piece, and inlaying piece stings the flower and accomplishes back and die cavity assembly in the surface, can be in order to reach the inside flower that stings of present case product, and the outside effect that does not sting the flower, device simple structure, and can make the helmet of preparing can reduce the torsion/the drawing force when opening the helmet when using, prevent helmet and syringe adhesion, helmet non-deformable and convenient to use. 2. When the inlaid pieces are bitten, the contact part of the bottoms of the inlaid pieces and the cavity is protected from being bitten, so that when the inlaid pieces and the cavity are assembled and the helmet is produced, the completeness of the helmet cannot be influenced.
Drawings
FIG. 1 is a schematic view of the structure of the protective cap of the present invention;
FIG. 2 is a schematic structural view of a cap mold of the present invention;
FIG. 3 is a schematic view of a mold cavity configuration of the present invention;
FIG. 4 is a schematic view of the construction of the insert of the present invention.
Detailed Description
The technical scheme of the utility model is further explained by combining the drawings in the specification.
As shown in fig. 1-4, the utility model discloses a device for preparing a pre-filled and sealed syringe protective cap, which comprises a protective cap mold, wherein the protective cap mold comprises a cavity 3 which is communicated up and down, and the sectional view of the cavity 3 is shown in fig. 2; and the insert 4 is inserted into the cavity 3 and is used for matching with the injection end of the injector, the section of the insert 4 is shown in figure 3, and the surface of the insert 4 is provided with an undercut layer 5 for preventing the protective cap from being adhered with the injection end. Wherein, the texture layer 5 is a frosted layer; the thickness of the bitten layer 5 is 0.05mm, preferably less than 0.1 mm; the texture treatment is the direct treatment of the metal surface, and the material is consistent with the untreated surface. Fig. 4 is a schematic sectional view of the cap mold formed by the cavity 2 and the insert 3. The bitten flower layer 5 is a metal layer. The contact surface of the insert 4 and the cavity 3 has no undercut layer. When the insert 4 is assembled with the cavity 3 and then the protective cap is produced, the integrity of the protective cap is not affected.
The pre-encapsulated syringe protective cap prepared by the device comprises a protective cap body 1, wherein an anti-sticking layer 2 for preventing the protective cap from being stuck with an injection end is arranged on the contact surface of the protective cap body 1 and the injection end of the syringe. Wherein, the anti-sticking layer 2 is a frosted layer; the thickness of the anti-sticking layer 2 is 0.05mm, and the preferred range is less than 0.1 mm; the texture treatment is the direct treatment of the metal surface, and the material is consistent with the untreated surface. The area of the anti-sticking layer 2 at least occupies 1/3 of the contact surface area of the protective cap body and the injection end of the injector.
The method for preparing the pre-filled and sealed syringe protective cap by using the device comprises the following steps:
(1) forming a flower biting layer on the surface of the mosaic piece matched with the injection end of the injector by using a flower biting process, wherein the mosaic piece with the flower biting layer formed on the surface and the cavity form a protective cap mold together;
(2) and (3) preparing the pre-encapsulated syringe protective cap in the protective cap mould obtained in the step (1) by using a molding process.
Claims (5)
1. The utility model provides a device of preparation embedment syringe helmet in advance, includes the helmet mould, its characterized in that, the helmet mould is including cavity (3) that link up from top to bottom, inserts be used for in cavity (3) with the injection end matched with inlay piece (4) of syringe, it is equipped with stings flower layer (5) that are used for preventing helmet and injection end adhesion to inlay piece (4) surface.
2. Device for preparing pre-filled syringe caps according to claim 1, characterized in that the bitten layer (5) is a frosted layer.
3. Device for preparing pre-filled syringe caps according to claim 1, characterized in that the thickness of the bitten layer (5) is less than 0.1 mm.
4. Device for preparing pre-filled syringe caps according to claim 1, characterized in that the bitten layer (5) is a metal layer.
5. Device for preparing pre-filled and sealed syringe caps according to claim 1, characterized in that the interface of the insert (4) with the moulding cavity (3) is free of an occlusal layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120293223.7U CN215537342U (en) | 2021-02-02 | 2021-02-02 | Device for preparing pre-filled and sealed syringe protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120293223.7U CN215537342U (en) | 2021-02-02 | 2021-02-02 | Device for preparing pre-filled and sealed syringe protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215537342U true CN215537342U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120293223.7U Active CN215537342U (en) | 2021-02-02 | 2021-02-02 | Device for preparing pre-filled and sealed syringe protective cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215537342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755328A (en) * | 2021-02-02 | 2021-05-07 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe cap, preparation method and device thereof |
-
2021
- 2021-02-02 CN CN202120293223.7U patent/CN215537342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755328A (en) * | 2021-02-02 | 2021-05-07 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe cap, preparation method and device thereof |
| CN112755328B (en) * | 2021-02-02 | 2023-12-15 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe protective cap, preparation method and device thereof |
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