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Moulding assembly and method for producing a syringe body

A manufacturing method, technology of syringes, applied in the field of molded components and manufacturing for the manufacture of syringe bodies, capable of solving problems of deformation, loss of tightness, penetration, etc.

Active Publication Date: 2017-09-26
APTAR FRANCE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, molds made with half-shells have molding defects (penetration, deformation) at the junction of the two half-shells, especially at the junction of the syringe hub (moyeu) that receives the needle and the needle protection that should be sealed Danger
risk of loss of tightness

Method used

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  • Moulding assembly and method for producing a syringe body
  • Moulding assembly and method for producing a syringe body
  • Moulding assembly and method for producing a syringe body

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Embodiment Construction

[0059] In the following description, the terms "axial", "radial" and "transverse" all refer to the longitudinal axis of the needle in the model element, i.e. Figure 1B with Figure 2-10 vertical axis in . The terms "proximal" and "distal" both refer to the needle.

[0060] The invention relates more particularly to the manufacture of a syringe body 10 provided with a needle 20 comprising a cylindrical portion 11 forming a reservoir and a hub portion 12 on which said needle 20 is fixed.

[0061] The invention will be described below with reference to the complete cycle of the molding assembly and with reference to the molding of the syringe body 10 onto the needle 20 . Of course, a molded assembly may include multiple subassemblies that work simultaneously.

[0062] The molding assembly comprises at least one mold unit 100, each mold unit 100 comprising a first mold part 110 and a second mold part 120 axially movable relative to said first mold part 110 between an open posi...

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Abstract

A moulding assembly for producing at least one syringe body (10), each syringe body (10) being provided with a cannula (20), each syringe body (10) comprising a cylindrical portion (11) and a hub portion (12) to which said cannula (20) is attached, the moulding assembly comprising: at least one mould unit (100), each mould unit (100) comprising a first mould portion (110), a second mould portion (120) that can be moved axially relative to said first mould portion (110) between an open position and a closed position, wherein said first and second mould portions (110, 120) together define a mould cavity (130), and a core (140) located in said mould cavity (130) in order to define the shape of said syringe body (10); and at least one clamping unit (200) for a cannula (20), each clamping unit (200) comprising a clamp (210) that can be moved between an open position, in which a cannula (20) can be loaded into a proximal axial end of said clamp (210), and a closed position, in which said cannula (20) is held in said clamp (210), said clamping unit (200) being movable axially relative to said mould unit (100) in order to arrange a cannula (20) in said mould cavity (130), the movement of said clamp (210) between the open and closed positions of same being independent of the axial movement of said first and second mould portions (110, 120) between the open and closed positions of said mould unit (100).

Description

technical field [0001] The present invention relates to a molding assembly and method of manufacture for the manufacture of syringe bodies. Background technique [0002] In the prior art, syringes are well known. These devices consist of a substantially cylindrical body, one side of which receives a needle forming a needle for piercing an injection site and dispensing a fluid product at said injection site, and the other side of the body is provided with a stopper piston which, when at rest, is to dispense Product is retained in the body, and a plunger, in use, slides sealingly within the syringe body to dispense the fluid product through the needle. [0003] Assembling the needle onto the syringe body is a critical step in syringe manufacturing. The needle should be accurately positioned and then secured to the syringe without damage. The needle should be aligned with the central axis of the syringe. The needle should also be sufficiently fastened to the syringe to with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29C45/04B29K705/00
CPCB29C45/04B29C45/14008B29C45/14065B29C45/14598B29K2705/00B29L2031/7544B29C45/14336
Inventor T·休伯特V·赫伯特O·伊斯
Owner APTAR FRANCE SAS
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