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Drug delivery device

A delivery device and drug technology, applied in the field of dose setting mechanism, can solve problems such as unrealizable

Active Publication Date: 2016-07-06
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a design flaw may not be realized when the pen is first commercialized and may only become apparent after the injection device has been in commercial use by patients for an extended period of time

Method used

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Examples

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Embodiment Construction

[0045] First refer to Figure 1 to Figure 3 , the drug delivery device 1 is shown as an injector pen having an elongated generally writing implement-like form, but other forms are within the scope of the invention. In other words, the drug delivery device 1 may be a pen-type device. The drug delivery device 1 comprises a housing with a cartridge holder 2 and a main (outer) body or housing 4 .

[0046] The drug delivery device 1 and the housing have a distal end and a proximal end. The term "distal end" designates the end of the drug delivery device 1 or a component thereof which is or will be arranged closest to the dispensing end of the drug delivery device 1 . The term "proximal end" designates the end of the device 1 or a component thereof which is or will be arranged furthest from the dispensing end of the device 1 . The distal end and the proximal end are spaced apart from each other in the direction of the axis. The axis may be the longitudinal axis or the rotational...

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Abstract

The present disclosure provides for a drive assembly for a drug delivery device. The drive assembly comprises a housing (4); a piston rod having a longitudinal axis, a distal end and a proximal end and being axially movable in a distal direction relative to the housing and a mid-body (20) axially fixed inside of the housing (4) and coupled to the piston rod. The mid-body (20) comprises at least one metal ratchet arm (81 ) configured to prevent the piston rod from moving in the proximal direction. Moreover, a drug delivery device with such a drive assembly is presented.

Description

technical field [0001] The present disclosure relates generally to pen-type injection devices and in particular to dose setting mechanisms for such drug delivery devices. Such devices provide for self-administration of medicinal product from multi-dose cartridges and allow the user to set the delivered dose. The present application may find application in both disposable and reusable types of drug delivery devices. However, aspects of the invention may be equally applicable in other scenarios. Background technique [0002] Pen-type drug delivery devices have application in the context of routine injections by personnel without formal medical training. This is becoming increasingly common among patients with diabetes, where self-treatment allows such patients to effectively manage their disease. Diabetes has been shown to cause certain problems. For example, people with diabetes can develop high blood pressure, kidney disease, nerve damage, heart disease and even blindnes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/24A61M5/315
CPCA61M5/24A61M5/31548A61M5/31595A61M2005/2492A61M2005/2488A61M2207/00A61M5/3146A61M5/31505A61M5/31551A61M5/3158A61M5/31535
Inventor S·布兰克A·托伊舍M·尤格尔C·施奈德
Owner SANOFI AVENTIS DEUT GMBH
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