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Connection assembly for a drug delivery device, and method for making this assembly

A technology for connecting components and delivery devices, which is applied in the direction of devices introduced into the body, hypodermic injection devices, needles, etc., and can solve problems such as inability to ensure connection, difficulty in connecting needles or catheters, etc.

Active Publication Date: 2012-11-28
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this immobility is not necessarily completely ensured, making it more difficult to connect needles or catheters, and especially not to ensure that such a connection is maintained during use, which can lead to serious consequences for medical devices and in particular injection devices

Method used

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  • Connection assembly for a drug delivery device, and method for making this assembly
  • Connection assembly for a drug delivery device, and method for making this assembly
  • Connection assembly for a drug delivery device, and method for making this assembly

Examples

Experimental program
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Embodiment Construction

[0050] Figure 4-7 A connection assembly 10 is shown for connecting an injection needle or medical connector (not shown) to a tip 11 of a syringe body 12, for example made of glass. The connection assembly 10 includes the end 11 and an adapter 13 , the adapter 13 is a Luer type connection, that is, includes an outer peripheral wall 15 and an inner thread 16 . The needle or connector has an enlarged proximal portion that is threaded, allowing it to be screwed into the adapter 13 .

[0051] The tip 11 has a tapered distal portion 20 and a proximal fitting area 21 having the basic shape of a groove for fitting the adapter 13 thereon.

[0052] exist Figure 4-7 In the preferred embodiment, the tip 11 is a rotating member having a longitudinal axis A of rotation.

[0053] The fitting area 21 is delimited by a cylindrical bottom 22 and proximal and distal shoulders. It comprises an annular projection 25 centered on axis A protruding from said bottom 22 . Such as Figure 4-7 As...

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PUM

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Abstract

This connection assembly (10) includes a tip (11) defining a longitudinal axis (A) and including a mounting area (21) for mounting an adaptor (13) thereon, and said adaptor (13) including a mounting portion (26) of thermoplastic material, forming a radial surface, which define a mounting opening (27) for mounting said adaptor (13) onto said tip (11). According to the invention: - said mounting area (21 ) includes at least one first portion (25; 30) having an outer surface which is located at a first distance from said longitudinal axis (A) and at least one second portion (22), adjacent to said first portion (25; 30), having an outer surface which is located at a second distance from said longitudinal axis (A), said second distance being different from said first distance, said radial surface being located after assembly of said adaptor over said first portion (25; 30) and said second portion (22); - said mounting opening (27) and said at least one first portion (25; 30) and second portion (22) are so dimensioned one with respect to the other that said radial surface of said mounting portion (26) is in close contact with the outer surfaces of both said first portion (25; 30) and said second portion (22).

Description

technical field [0001] The present invention relates to a connection assembly of a drug delivery device comprising a tip and an adapter. This end can in particular be the end of the syringe body, for example made of glass, allowing the injection needle to be attached to the syringe body. The adapter can in particular be a Luer-type connection. [0002] The invention also relates to a method of manufacturing the connection assembly. Background technique [0003] It is known to form a secure connection of a syringe needle to a tip contained in a syringe body by means of an adapter fitted on the tip, which adapter is internally threaded to receive, by screwing in, a threaded end comprised in the tip of the needle to be connected to the syringe body. It is known in the same way to make a secure connection of a medical catheter to the luer-type end by means of an adapter in the form of a luer-type connection. [0004] On a purely illustrative basis, FIGS. 1 to 3 describe such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/34
CPCA61M5/344A61M5/347A61M5/3134
Inventor O·阿尔万
Owner BECTON DICKINSON FRANCE