Cartridge holder and pen-type injector

A pen-type syringe and holder technology, applied in the directions of syringes, ampoule syringes, infusion sets, etc., can solve the problems of material tearing or rupture, and achieve the effect of impact load, stress relief, and durable connection

Active Publication Date: 2014-12-17
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the concentrated stress distribution in the corner area leads to tearing or rupture of the window geometry as well as the material surrounding the window

Method used

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  • Cartridge holder and pen-type injector
  • Cartridge holder and pen-type injector
  • Cartridge holder and pen-type injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] figure 1 Shown for receiving the cartridge holder ( figure 2 ) housing 1 of a drug delivery device, the cartridge holder containing a medicinal product, for example a drug, such as insulin. The housing 1 is a sleeve-like shape. At the distal end 2 of the housing 1, a portion 3 is formed as an opening to receive and lock with the cartridge holder. On the inner surface of the receiving part 3 of the housing 1, a set of blocking elements 4 is arranged projecting radially inwardly from the inner surface of the inner wall of the housing 1 and is tapered or inverted with a distal end facing the cartridge holder. The substantially rectangular shape of the edges of the corners. In the inner wall there is also formed a set of spline grooves 5 extending in the longitudinal direction from the distal end 2 of the housing 1 in the opposite direction towards the proximal end.

[0094] The splined groove 5 is arranged such that a keyed connection is formed with a corresponding s...

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PUM

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Abstract

The present invention is directed to a cartridge holder (6) for a drug delivery device with snap fastening connection means to fasten the cartridge holder to a housing (1) of the drug delivery device, wherein the fastening connection means are provided with at least on basically rectangular window (15) for receiving a locking element (4) of said housing. The invention is further directed to a pen-type injector equipped with a respective snap fastening connection for the cartridge holder (6).

Description

technical field [0001] The present invention is directed to a cartridge holder for a drug delivery device having a snap fastening connection for fastening the cartridge holder to the housing of the drug delivery device, wherein the fastening connection The device is provided with at least one substantially rectangular window for receiving a locking element of said housing. The invention further refers to a pen injector equipped with a corresponding snap-fast connection for the cartridge holder. Background technique [0002] Such syringes are typically used by personnel without formal medical training. The present application thus arises in an environment setting various requirements for a drug delivery device of this type. In case of incorrect use, such as unauthorized removal actions, there is a risk of contamination of the drug stored in the cartridge. Furthermore, the medical components of the device can be damaged. Therefore, the device must be structurally robust to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M25/06
CPCA61M5/24A61M2005/2407A61M2005/2492A61M5/28
Inventor R·艾因瓦彻特
Owner SANOFI AVENTIS DEUT GMBH
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