Title:
MEDICAMENT DELIVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/081867
Kind Code:
A3
Abstract:
The present invention relates to a medicament delivery device comprising a housing having opposite distal and proximal ends; a medicament container holder releasably connected to said housing; a medicament container arranged inside said medicament container holder; a threaded plunger rod arranged to pass through a first inner wall of the housing and arranged to act on a stopper in the medicament container; a lead screw member coaxially connected to the threaded plunger rod by co-acting first slidably-and-rotatably-locked means; wherein said device further comprises a nut coaxially connected to the threaded plunger rod by a treaded engagement between them, connected to the lead screw member by co- acting non-slidable-and-rotatable means, and connected to the housing by co- acting second slidably-and-rotatably-locked means; a primary dose member coaxially rotatable on the lead screw member when the device is in a non- activated state and connected to the lead screw member by co-acting third slidably-and-rotatably-locked means when the device is in an activated state; a locking member fixedly connected to the housing and releasably connected to the lead screw member by co-acting locking means; a first spring force means arranged between the first inner wall of the housing and the nut, wherein the first spring force means is in a pre-tensioned state when said locking means are engaged and the device is in the non-activated state; a secondary dose member rotatably connected to said primary dose member via a pinion gear; dose setting means connected to the primary dose member by co-acting fourth slidably-and- rotatably-locked means, such that when the device is to be set from the non- activated state to the activated state, the dose setting means are manually manipulated in a pre-determined direction, whereby the locking means are released and the lead screw member is distally moved a pre-determined distance by the first spring force means independent of the size of a dose to be set.
Inventors:
GIAMBATTISTA LUCIO (US)
BENDEK ANTONIO (US)
BENDEK ANTONIO (US)
Application Number:
PCT/US2010/060022
Publication Date:
September 29, 2011
Filing Date:
December 13, 2010
Export Citation:
Assignee:
SHL GROUP AB (SE)
GIAMBATTISTA LUCIO (US)
BENDEK ANTONIO (US)
GIAMBATTISTA LUCIO (US)
BENDEK ANTONIO (US)
International Classes:
A61M5/315
Domestic Patent References:
| WO2003080160A1 | 2003-10-02 | |||
| WO2001095959A1 | 2001-12-20 | |||
| WO2008101829A1 | 2008-08-28 |
Foreign References:
| US6221053B1 | 2001-04-24 | |||
| DE102004063652A1 | 2006-07-13 |
Attorney, Agent or Firm:
FRISCHKORN, David, M. (300 South Wacker DriveChicago, IL, US)
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