Sanofi-a Ventis Deutschland Gmbh

Benjamin Schaefer

Michael Helmer

Peter Nober

Leo Zeimetz

Claudia Matthias

Reza Shahbazfar

Carsten Mosebach

Christian Dexheimer

Christoph Garthen

The present invention relates to a cartridge for a drug delivery device comprising of a body of substantially cylindrical shape, a piston slidably disposed in the body along two opposite axial directions, along a distal and along a proximal direction, and at least one friction means operably engaged with the piston to generate a pre-defined friction force between the piston and an inside wall of the body, when the piston is displaced relative to the body, wherein in response to an axial displacement of the piston relative to the body in distal direction and in proximal direction, the at least one friction means is adapted to generate respective proximal and distal friction forces that are different in magnitude.

Training mechanism for drug delivery device

The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicinal product, comprising: a holder for a product-containing cartridge, the cartridge having a piston slidably arranged therein in an axial direction, a piston rod to be operably engaged with the cartridge's piston for dispensing of a dose of the medicinal product, an adjusting assembly adapted to eliminate axial clearance between the piston and the piston rod, wherein the adjusting assembly comprises at least one radially extending spike element for mutually locking in position the piston and the piston rod irrespective of the relative distance between piston and piston rod.

Drive mechanism for drug delivery devices

The present invention relates to a drug delivery device for dispensing of a predefined dose of a medicinal product, comprising: a housing, a cartridge holder adapted to receive a cartridge containing the medicinal product to be dispensed, the cartridge holder being connectable to the housing, a drive mechanism to be operably engaged with the cartridge for setting and/or dispensing of a predefined dose of the medicinal product, wherein the drive mechanism is axially slidingly supported in the housing for compensating axial clearance between the drive mechanism and the cartridge and wherein the drive mechanism is axially fixable relative to the housing.

Drug delivery device with clearance compensation means

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Bischoffen, Germany

Benjamin Schaefer