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Actuation step failure handling

An actuation, failure technology, used in auto-injectors, non-electric variable control, instruments, etc., that can solve problems caused by different components or components attached to them, and the normal rate of pharmaceuticals cannot be injected from medical devices.

Inactive Publication Date: 2016-04-20
SANOFI AVENTIS DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] However, it is problematic to deal with situations where the medicament cannot be injected from the medical device at the normal rate or at all, as these failures can have different causes
In particular, blockages may be caused by different parts of the medical device or parts attached to it
However, similar ejection failures can occur when the drive system of the device is defective

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0072] figure 1 The drug delivery device shown comprises a body 14 extending from a proximal end 16 to a distal end 15 . At the distal end 15, a removable end cap or cover 18 is provided. This end cap 18 and the distal end 15 of the main body 14 together provide a snap fit or form fit connection so that once the cover 18 is slid onto the distal end 15 of the main body 14, the friction fit between the cover and the outer surface 20 of the main body prevents the closure of the cover. Accidentally dropped from the subject. The main body 14 contains a microprocessor control unit, an electromechanical drive system and at least two medicament reservoirs. When the end cap or cover 18 is removed from the device 10 (such as figure 1 When removed, the dispense interface 200 is mounted to the distal end 15 of the body 14 and a dose dispenser (eg, a needle assembly) is attached to the interface. The drug delivery device 10 may be used to administer calculated doses of a second medicam...

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PUM

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Abstract

The invention relates to an apparatus for automatic ejection of a fluid, having a drive train for automatically ejecting the fluid from a fluid reservoir through an ejection channel, and having a control unit (510) for controlling the apparatus, the control unit (510) being configured to detect failures of drive train actuation steps (610, 620), during which the drive train is actuated for priming or fluid dose ejection, the control unit (510) being further configured to control the apparatus as a function of an actuation step failure number, the actuation step failure number being the number of failed drive train actuation steps (610, 620) since the last successful drive train actuation step (610, 620). The invention further relates to a system comprising such an apparatus a disposable assembly attachable to the apparatus and to a method for controlling such an apparatus.

Description

technical field [0001] The present patent application relates in particular to a device for automatic fluid discharge having a drive system for automatically discharging fluid from a fluid reservoir through a discharge channel. The device may in particular be a medical device. [0002] The medical device may be an injector, such as a hand-held injector, especially a pen injector, which is the type of injector that provides administration by injection of a medicinal product from one or more multi-dose cartridges. In particular, the present invention relates to such user-settable dose syringes. Background technique [0003] A pharmaceutical formulation may be contained in two or more multi-dose reservoirs, containers or packs, each containing individual (single drug compound) or premixed (multiple drug compounds formulated in combination) Pharmaceutical preparations. [0004] Certain disease states require treatment with one or more different agents. Some drug compounds ne...

Claims

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Application Information

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IPC IPC(8): A61M5/145A61M5/168A61M5/20
CPCA61M5/145A61M5/1452A61M5/16831A61M5/20A61M2205/273A61M2205/276A61M2205/52A61M5/142A61M5/172A61M2005/1402A61M2205/702
Inventor I·埃格特M·卡斯珀斯M·迪迪埃
Owner SANOFI AVENTIS DEUTSCHLAND GMBH