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An injection needle assembly

A technology of injection needles and components, applied in the field of injection needle components, can solve the problems of blocking the needle with medicine, delaying the delivery of medicine, increasing the injection time, etc.

Active Publication Date: 2019-03-15
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem is that during this storage time the medicament remains in contact with the needle of the syringe and clogging of the needle with the medicament can occur
This can delay the delivery of the drug during injection and thus increase the injection time

Method used

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  • An injection needle assembly
  • An injection needle assembly
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Examples

Experimental program
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Embodiment Construction

[0039] Embodiments of the present invention provide an injection needle assembly for a drug delivery device, the injection needle assembly having: an injection needle; a sealing assembly including a spacer element surrounding a distal end of the injection needle and for sealing the distal end of the injection needle of the sealing film. Providing such a sealing assembly allows the injection needle to remain sterile and protected during storage and / or transport prior to use in the drug delivery device. The needle assembly according to the invention allows a more comfortable and efficient use of the device. Indeed, in an embodiment of the invention, the user does not need to touch the needle during the steps of unsealing the distal end of the needle, inserting the needle into the medicament cartridge and actuating the injection of the medicament.

[0040] According to some embodiments of the present disclosure, in Figure 1A and Figure 1B An exemplary drug delivery device ass...

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PUM

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Abstract

The present invention relates to an injection needle assembly (16, 116, 216, 316, 416) for use in a medicament delivery device (10). The injection needle assembly comprises an injection needle holder(27), an injection needle (17) fixed to said injection needle holder (27), the injection needle (17) having a proximal end (18) and a distal end (19), and a sealing assembly (25) for sealing the distal end (19) of the injection needle (17). The sealing assembly (25) comprises a spacer element (31) surrounding the distal end (19) of the injection needle (17) and a sealing membrane (32) for sealingthe distal end (19) of the injection needle (17).

Description

technical field [0001] The present invention relates to an injection needle assembly for a drug delivery device. The invention also relates to a device for delivering a medicament to a patient, the device comprising a needle assembly. Background technique [0002] Medicament injection devices, such as auto-injectors, are a common type of medicament delivery device designed to deliver medicament by injection. This type of device is designed for ease of use and is intended to be self-administered by the patient, or by someone without formal medical training. [0003] Some medicament injection devices operate with cartridge-based injection systems. Injection devices of this type are usually provided with a separate cartridge pre-filled with medicament and a separate needle assembly sealed in a sterile package. Prior to injection, the patient must place the cartridge in the cartridge holder located within the device housing, open the package containing the needle assembly, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/50A61M5/32A61B5/15A61M5/158A61M5/162A61M39/10
CPCA61M5/158A61M5/162A61M5/1626A61M5/2466A61M5/3202A61M5/3213A61M5/3243A61M5/50A61M5/5086A61M2005/247A61M2039/1066A61M5/14A61M5/3245A61M39/04A61M2005/3254A61M2039/0205A61M2039/1072A61M2205/0216A61M2207/00
Inventor M·赫尔默M·劳W·赫塔马赫
Owner SANOFI AVENTIS DEUT GMBH