Needle shield with specific roughness

A technology of roughness and shielding, applied to needles, devices introduced into the body, hypodermic injection devices, etc., can solve problems such as difficult removal of needle shields, and achieve the effect of reducing the pull-out force

Inactive Publication Date: 2010-08-11
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon makes it difficult to remove the needle shield when using the syringe

Method used

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  • Needle shield with specific roughness
  • Needle shield with specific roughness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 2 A shroud 10 of the present invention is shown. Shield 10 is used to cover such as syringe 3 (in figure 2 The distal end of the drug delivery device shown partially in ). Alternatively, the drug delivery device may be a needle assembly. The distal end of the syringe 3 is provided with a hub 2 on which a needle 6 is secured. The shroud 10 has an open proximal end 11 , a closed distal end 12 and a wall 13 extending from said proximal end 11 to said closed distal end 12 . The inner surface 14 of the wall 13 forms a cavity 15 for receiving a part of the distal tip of the syringe 3 . When the shield 10 is fastened on the distal end of the syringe, a part 14a of the inner surface 14 is intended to contact the hub 2 of the distal end of the syringe 3 in order to protect the drug delivery device during transport, for example, before use. the distal end.

[0042] exist figure 2 wherein the average radial roughness of said portion 14a of the inner surface 14 of ...

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PUM

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Abstract

The present application relates to a shield (10) for the distal extremity of an administration device (3) comprising a hub (2) on which said shield (10) is to be removably engaged, said shield (10) having a wail (13) the internal face (14) of which defining an interior cavity (15) for receiving the extremity of the administration device (3), at least a portion (14a) of said internal face (14) being intended to be in contact with said hub (2) when said shield (10) is engaged on the extremity of said administration device (3), wherby said portion (14a) has, distributed over a major portion of said portion (14a), a surface feature (16, 17) that defines the amount of contact between said portion (14a) and said hub (2).

Description

technical field [0001] The present invention relates to a shield for covering the distal tip of a drug delivery device at least prior to use of the drug delivery device. Background technique [0002] In the present application, the term distal refers to the part furthest from the user's hand and the term distal refers to the part closest to the user's hand. Likewise, in this application, the term "distal direction" refers to the direction of administration, ie towards the patient, while the term "proximal direction" refers to the direction opposite to the direction of administration, ie away from the patient. [0003] Drug delivery devices are commonly used in several technical fields, such as, for example, the field of medicine, for administering medicine to a patient, for example by spraying it through a spraying device or injecting it through an injection device. To this end, the distal end of the drug delivery device may be provided with a staked needle or a nozzle or a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3202
Inventor J-C·蒂博J·贝尔纳
Owner BECTON DICKINSON FRANCE
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