Medication delivery device

A technology for delivery equipment and medicine, which is applied in the field of manufacturing or assembling the equipment and dosing mechanism, which can solve the problems of not allowing or hindering the reset of the medicine delivery equipment, and achieve the effect of easy replacement

Active Publication Date: 2011-06-01
SANOFI AVENTIS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] All these known dose setting limiting mechanisms in the art have the disadvantage that, for example, they do not allow or at least prevent the drug delivery device from being reset after the empty container has been replaced by a full container.

Method used

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Examples

Experimental program
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Embodiment Construction

[0153] First refer to Figures 1a to 1c , showing the drug delivery device according to the invention in three different positions.

[0154] The drug delivery device 1 comprises a cartridge holder 2 and an (outer) housing 3 . Preferably, the housing 3 is painted. The distal end of the housing 3 is provided with an insert 3A fixedly connected to the housing. The insert 3A is provided with second engaging means 4 for engaging the first engaging means 5 of the cartridge holder 2 . The proximal end of the cartridge holder 2 is provided with first engagement means 5 for engaging the second engagement means 4 of the inserter 3A.

[0155] A medicament-filled cartridge 6 , from which a number of doses of a medicament product can be dispensed, is arranged in the cartridge holder 2 . Piston 7 remains in barrel 6 .

[0156] A removable end cap (not shown) is releasably retained on the distal end of the cartridge holder 2 . Preferably said end cap includes a clip that snaps onto said...

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PUM

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Abstract

The present invention refers to a medication delivery device (1) comprising: a medication receptacle (6); a dosing mechanism comprising: a piston rod (17); a drive device (19); a dose setting member (27); and a dose limiting member (28) which prevents the setting of a dose of medication which exceeds an amount of medication contained in the medication receptacle (6); and a housing (3). The dose limiting member (28) is designed for axial movement in a proximal direction with respect to the piston rod (17) during dose setting and comprises a first stop element (35) and the piston rod (17) comprises a second stop element (36). The first and second stop elements (35, 35) stop an axial movement of the dose limiting member (28) in the proximal direction with respect to the piston rod (17) when the first and second stop elements (35, 36) catch, thereby limiting a movement of the dose setting member (27) for increasing a set dose of medication to be delivered. The dose limiting member (28) and the piston rod (17) only interact directly, when the first and second stop elements (35, 36) catch.

Description

technical field [0001] The present invention relates to a drug delivery device, the use of the device and methods of making or assembling the device. The present invention particularly relates to a dosing mechanism suitable for use in a drug delivery device, particularly a pen-type injector, preferably having a dose setting member and a drive device, allowing dose setting and setting of a drug product from a multi-dose drug cartridge. medication. In particular, the present invention relates to a drug delivery device in which the user can set the dose of drug delivered from a multi-dose cartridge. Most preferably, the drug delivery device comprises a multi-dose drug cartridge which can be replaced after the drug has been completely dispensed. [0002] The present invention further relates to a dosing mechanism for a medicament delivery device, in particular a dosing mechanism comprising a dose setting limiting mechanism with a dose limiting member which prevents setting beyon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
CPCA61M5/31541A61M2205/585A61M5/3129A61M2005/3142A61M2005/2488A61M5/31585A61M5/31551A61M2205/581A61M5/31561A61M2205/582A61M2005/2407A61M5/31543A61M5/24Y10T29/49826
Inventor 迈克尔·哈姆斯詹姆斯·R·S·豪沃思罗宾·C·科克尔乔治·R·格雷戈里安东尼·R·查彭蒂尔迈克尔·斯特雷尔乌多·勒施纳诺伯特·贝森哈特
Owner SANOFI AVENTIS DEUT GMBH
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