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Injection device with axially moving needle holder

A technology of injection devices and needle holders, applied in syringes, drug devices, ampoule syringes, etc., can solve problems such as increased injection time, negative effects of drugs, delayed drug delivery, etc.

Active Publication Date: 2018-12-21
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 storage, the drug remains in contact with the needle of the cartridge, and it may occur that the drug clogs the needle
This may delay drug delivery during injection, thus increasing injection time
Also, there may be other negative effects on the drug if it comes into contact with the drug over a long storage period

Method used

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  • Injection device with axially moving needle holder
  • Injection device with axially moving needle holder
  • Injection device with axially moving needle holder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] An injection device is provided having a changeover mechanism for piercing a cartridge contained in the injection device. The injection device comprises: a housing containing a cartridge; a needle holder comprising an injection needle; a cap which removably engages the housing; and a switching mechanism which converts The mechanism is configured such that linear distal movement of the cap causes proximal movement of the needle holder such that the injection needle penetrates the cartridge. By using this specific configuration of the conversion mechanism, the need for manual unpacking and assembly of the injection needle and cartridge can be eliminated.

[0029] A drug delivery device as described herein may be configured to inject a drug into a patient. For example, delivery can be subcutaneous, intramuscular or intravenous. Such devices may be operated by the patient or by a caregiver, such as a nurse or physician, and may include various types of safety syringes, pe...

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PUM

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Abstract

An injection device comprising: a housing containing a cartridge; a needle holder including an injection needle; a cap that is removably engaged with the housing; and a translating mechanism configured such that linear distal movement of the cap causes proximal movement of the needle holder such that the injection needle pierces the cartridge.

Description

technical field [0001] The invention relates to an injection device. Background technique [0002] Current therapies delivered by self-administered injections include drugs for diabetes (insulin and newer GLP-A drugs), migraine drugs, hormone therapy, anticoagulants, and others. Administering an injection is a process that presents a variety of psychological and physical risks and challenges to users and health care professionals. [0003] Conventional injection devices are generally divided into two categories, namely manual devices and auto-injectors. In traditional manual devices, the user must provide force to drive the liquid drug out of the device, for example by depressing a plunger. [0004] Autoinjectors are designed to make self-administration of injectable treatments easier for users. Autoinjectors are devices that completely or partially replace the activities involved in drug delivery with manual devices. These activities may include removing the protective ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/32
CPCA61M5/24A61M5/3202A61M5/3293A61M2005/2474A61M5/2466A61M2207/00
Inventor M·赫尔默M·谢德P·诺伯
Owner SANOFI AVENTIS DEUT GMBH