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manual syringe

A technology for syringes and containers, which is applied in the field of manual syringes and can solve problems such as not being too easy to release

Active Publication Date: 2021-04-27
APTAR FRANCE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the safety device must also be safe and secure, and cannot be released too easily

Method used

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Embodiment Construction

[0028] The manual injector shown in the figures has a lower body 1 and an upper body 2 which is axially movable relative to said lower body 1 upon actuation. It should be noted that the lower body 1 and the upper body 2 can be made in one piece, or can be made from several parts fitted together. As is known, this lower body 1 houses a container S containing the preparation to be injected, a needle A fixed to said container S through which the preparation is dispensed, and a piston P adapted to Move in said container S for this injection. The upper body 2 has a piston rod TP cooperating with said piston P to move the piston in the container S when injecting. Needle A may be protected by a shield prior to use. Typically, container S may be a conventional prefilled syringe, with a radial collar 9 . Said container S is movable axially in said lower body 1 for puncturing and is then fixed relative to said lower body 1 during injection. Said piston rod TP is fixed relative to th...

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Abstract

Manual injector, having: a lower body (1), receiving a container (S), mounted axially movable in the lower body (1) and containing a fluid preparation to be injected, the container (S) having a piston (P) and a needle (A) ; The upper body (2), which is installed to move axially relative to the lower body (1) when actuated, has a piston rod (TP) which cooperates with the piston (P) during injection to make the piston move in the container (S); the sleeve (10), mounted to be movable relative to the lower body (1) between a rest position and an extended position, in the rest position, the sleeve (10) is arranged inside the lower body (1), In the extended position, the sleeve (10) moves axially out of the lower body (1), the sleeve (10) is locked in the rest position before the manual syringe is actuated and automatically pushed to the extended position after injection; the piston rod (TP) cooperates with the container (S) or with any member fixed to the container (S) to form an injection lock, so that the axial movement of the container (S) in the lower body (1) requires less force than that required to initiate the injection The force required for the lock, so that the puncture is performed before the injection, the piston rod (TP) is connected to the ring (60) before the actuation, the ring is fixed, especially crimped on the radial collar (9) of the container (S) superior.

Description

technical field [0001] The invention relates to a manual injector. Background technique [0002] Manual injectors are primarily used to advance the needle into the patient's body and to protect the needle of the syringe before, during and after injection. Instead, the user manually injects the formulation contained in the syringe into the patient. Manual injectors are relatively complex devices that must meet a considerable number of constraints in order to be safe and reliable. Robustness, ease of handling and ease of use by the user of the hand injector are also some important factors. In addition, most manual syringes are single-use, and manufacturing and assembly costs should also be considered. [0003] There are many hand injectors on the market, however, they all have some drawbacks. [0004] Therefore, the hand injector should not be too difficult to use, which would deter infirm persons from using it. It is also necessary to avoid starting the injection before ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/31A61M5/32
CPCA61M5/3129A61M5/326A61M5/3287A61M2005/3267
Inventor Q·嘉昂A·索萨耶
Owner APTAR FRANCE SAS
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