Dose setting mechanism with maximum dose limiting element

A technology of maximum dose and dose setting, applied in hypodermic injection devices, syringes, infusion sets, etc., can solve problems such as reducing commodity costs and not helping to simplify the manufacturing process

Inactive Publication Date: 2012-09-05
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This construction does not help simplify the manufacturing process or reduce the cost of goods

Method used

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  • Dose setting mechanism with maximum dose limiting element
  • Dose setting mechanism with maximum dose limiting element
  • Dose setting mechanism with maximum dose limiting element

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Embodiment Construction

[0100] In the following, the features of the invention are described with reference to the drug delivery device disclosed in EP 1 603 611 B1 of the applicant.

[0101] Although the invention is described with reference to this particular drug delivery device, the dose setting mechanism may be applied to other variable dose injection devices which limit the maximum dose in a similar manner. In other words, it is equally applicable to any drug delivery device where the maximum dose stop is determined by the feature of two separate parts moving towards each other and coming into contact when the maximum dose is reached. This may apply to components that move rotationally, eg in dialable variable dose pens, or axially travel eg in push-pull fixed dose pens. Furthermore, the invention has been described with reference to a disposable drug delivery device, but the invention can also be applied to reusable drug delivery devices.

[0102] In the drug delivery device disclosed in EP 1...

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Abstract

A dose setting mechanism for a drug delivery device is provided comprising first maximum dose stop features (1) on a first component part (2) of the drug delivery device and corresponding second maximum dose stop features (3) on a second component part (4) of the drug delivery device, with the first and second maximum dose stop features (1, 3) being designed to limit a relative movement between the first and second component parts (2, 4). To limit the maximum dose which can be chosen, a maximum dose limiting device (5, 10, 10', 10", 10"') is provided interposed on the first component part (2) between the first and second maximum dose stop features (1, 3).

Description

technical field [0001] The present invention relates to a dose setting mechanism for a drug delivery device. Background technique [0002] In the manufacture of medical devices, it is often advantageous to produce a family of products based on a common device platform. These advantages are, for example, simplification of the manufacturing process or reduction of the cost of goods. [0003] Common devices for dispensing injectable medical products are drug delivery devices with variable dose injection devices. When such a drug delivery device platform is used for multiple injectable medical products, the platform device may not be designed for a maximum dose for each drug to be delivered. An example might be long-acting insulin and short-acting insulin, which are described below. [0004] In the prior art, means are known for limiting the maximum dose of a drug delivery device. US 5,514,097 discloses a self-administering injection pen device in which a dose limiting sleev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
CPCA61M5/31525A61M5/31551A61M5/31561A61M2005/3154A61M5/31535A61M5/168
Inventor C.J.史密斯P.奥克兰
Owner SANOFI AVENTIS DEUT GMBH
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