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drug delivery device

A delivery device and drug technology, which is applied in the direction of drug devices, infusion sets, needles, etc., can solve problems such as injection needle blockage, and achieve the effect of reducing risks

Active Publication Date: 2020-11-27
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the injection needle may become clogged after long-term storage

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0040] figure 1 A schematic longitudinal detail section of a drug delivery device 1 according to an exemplary embodiment of the invention is shown.

[0041] The drug delivery device 1 is in an initial state S1. In the context of the present application, the starting position P1 of the drug delivery device 1 is the position at which the drug delivery device 1 will be presented to the user before use, before the drug delivery process starts.

[0042] The drug delivery device 1 comprises a cartridge 2 forming a chamber containing a dose of medicament. The cartridge 2 comprises an open distal end which is sealed by a sealing element 2.1, eg a fluid-impermeable membrane. Furthermore, a stopper (not shown) may be arranged in the cartridge 2 capping the lumen of the cartridge 2 in the proximal direction P and adapted to expel the drug from the cartridge 2 during drug delivery.

[0043] The cartridge 2 is mounted in a substantially cylindrical and hollow cartridge carrier 3, thereb...

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Abstract

The invention relates to a drug delivery device (1) comprising: - an outer needle sleeve (7); - a cartridge (2) which contains a dose of a medicament and is sealed with a sealing element (2.1) , the sealing element (2.1) is arranged across the open distal end of the cartridge (2), a cartridge holder (3) adapted to hold the cartridge (2) ;-needle seat (8), which is adapted to hold a double-ended hollow needle (5);-inner needle sleeve (4), which is arranged on the needle between the seat (8) and the cartridge holder (3); a removable cap (6) coupled to the inner needle sleeve (4) and adapted to cover and sealing the needle (5); a first locking mechanism (L1) adapted to lock the inner needle sleeve (4) in the initial state (S1) against relative The cartridge holder (3) is moved axially in the proximal direction (P), wherein, in the initial state (S1), the needle (5) and the cartridge (2) are in the distal direction (D) ) are spaced.

Description

technical field [0001] The invention relates to a drug delivery device Background technique [0002] Performing an injection is a process that presents many mental and physical risks and challenges to the user and care professional. Prefilled syringes having syringe cartridges containing selected doses of medicament are known in the art for administering medicament to a patient. Cartridges can be stored in blister packs, keeping them sterile until use begins. The cartridge includes a hollow injection needle in fluid communication with a medicament stored in the cartridge. As a result, injection needles may clog after long-term storage. [0003] There remains a need for an improved drug delivery device that reduces the risk of needle clogging during storage. Contents of the invention [0004] It is an object of the present invention to provide an improved drug delivery device which reduces the risk of needle clogging during storage. [0005] Said object is achieved by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/24A61M5/32
CPCA61M5/2455A61M5/2466A61M5/3202A61M2205/581A61M2205/582A61M5/288A61M2005/3267A61M2005/2474
Inventor M·赫尔默
Owner SANOFI AVENTIS DEUT GMBH
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