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Needle assembly and injection device with foldable needle protecting means

A technology of folding device and needle assembly, which is applied in the field of needle assembly, which can solve the problems of refrigeration and expensive storage, and achieve the effect of easy storage and prevention of accidental needle sticks

Active Publication Date: 2013-12-18
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Storage of these injection devices would require refrigeration and would be expensive

Method used

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  • Needle assembly and injection device with foldable needle protecting means
  • Needle assembly and injection device with foldable needle protecting means
  • Needle assembly and injection device with foldable needle protecting means

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] refer to figure 1 , shows a needle assembly 1 according to the invention, which is combined with a container 2 for receiving a product to be injected, thereby forming an injection device 3 according to the invention.

[0058] figure 1 The shown container 2 is a syringe, but it could also be a cartridge, a pen.

[0059] The needle assembly 1 and the injection device of the present invention have a common longitudinal axis A. The needle assembly 1 comprises a hub 4 on which is fixed a needle 5 having a free distal tip 6 . The needle hub 4 is also provided with a circular groove 7 in its proximal region. In the embodiment shown in the figures of the present application, the hub 4 of the needle assembly 1 is part of the distal end of the container 2 . In some embodiments not shown, the hub is a separate element from the container that is secured and / or connected to the distal end of the container by any typical securing means such as gluing, screwing, interlocking, etc....

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PUM

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Abstract

The present invention relates to a needle assembly (1) comprising: a needle hub (4) having a needle (5) with a distal tip (6), a ring (42) for protecting the needle in one of a storage condition or end-of-use condition of the needle assembly, foldable means (40) for moving the protective ring, biasing means (30) for urging the foldable means from their folded configuration to their unfolded configuration, retaining means for maintaining the biasing means in an intermediate stressed state at least in the storage condition of the needle assembly, deactivating means (47a) for releasing said retaining means at least at the end of the injection step. The invention also relates to an injection device (3) comprising such a needle assembly and a container (2).

Description

technical field [0001] The present invention relates to a needle assembly for an injection device, in particular to a needle assembly to be used in conjunction with a container containing a product to be injected, said needle assembly including a safety system for protecting the A needle, this needle assembly allows to obtain a very compact injection device. Background technique [0002] In this application, the distal end of an element or device means the end farthest from the user's hand and the proximal end means the end closest to the user's hand when the element or device is in the use position. Similarly, in this application, the terms "in the distal direction" and "distally" mean in the direction of injection, and the terms "in the proximal direction" and "proximally" mean in the direction opposite to the injection direction . [0003] In the present application, the terms "radially", "outwardly" and "inwardly" mean radially, outwardly and inwardly with respect to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3275A61M5/326A61M5/3287A61M2005/3247A61M2005/3267A61M2205/583
Inventor F·佩罗G·格兰于特A·普卢维耶
Owner BECTON DICKINSON FRANCE
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