Sanofi-a Ventis Deutschland Gmbh

Uwe Boeser

Michael Harms

Steffen Raab

Uwe Dasbach

Philippe Nzike

Ulrich Brüggemann

Ulrich Bruggemann

Francisco Soares

An assembly for a drug delivery device includes a housing, a rotation member, a drive member and at least one correction member. In a delivery mode, the drive member and the rotation member are coupled such that the drive member follows rotational movement of the rotation member in a first rotational direction. In a correction mode, the rotation member and the drive member are decoupled such that the rotation member is rotatable in the first rotational direction with respect to the drive member. For switching from the delivery mode into the correction mode, the correction member is moveable with respect to the housing, wherein the assembly is configured such that movement of the correction member with respect to the housing is converted into a relative movement between the drive member and the rotation member for decoupling the drive member and the rotation member.

Assembly for a drug delivery device and drug delivery device

An assembly for a drug delivery device comprises a housing, a rotation member, a drive member and at least one correction member. The rotation member is adapted to be rotated with respect to the housing in a first rotational direction for delivering a dose of a drug. The drive member is coupleable to the rotation member for delivering the dose. In a delivery mode, the drive member and the rotation member are coupled such that the drive member follows rotational movement of the rotation member in the first rotational direction due to mechanical interaction of the rotation member and the drive member. In a correction mode, the rotation member and the drive member are decoupled such that the rotation member is rotatable in the first rotational direction with respect to the drive member.

An assembly for a drug delivery device is disclosed. An example assembly includes a housing, a rotation member, a drive member, and at least one correction member. The rotation member is adapted to be rotated with respect to the housing in a first rotational direction for delivering a dose of a drug. The drive member is coupleable to the rotation member for delivering the dose. In a delivery mode, the drive member and the rotation member are coupled such that the drive member follows rotational movement of the rotation member in the first rotational direction due to mechanical interaction of the rotation member and the drive member. In a correction mode, the rotation member and the drive member are decoupled such that the rotation member is rotatable in the first rotational direction with respect to the drive member.

An assembly for a drug delivery device, comprising: a housing having a distal end and a proximal end, a piston rod, a drive member, the drive member being moveable in a proximal direction with respect to the housing and with respect to the piston rod for setting a dose of a drug, at least one stop member which is provided on one of the piston rod and the drive member and which is radially moveable with respect to the one of the piston rod and the drive member on which it is provided, and at least one interaction member which is provided on the other one of the piston rod and the drive member. Furthermore, a piston rod for a drug delivery device is provided.

Assembly for a drug delivery device, piston rod and drug delivery device

The drive mechanism comprises a piston rod, a dose member with a thread engaging a corresponding thread of the body to allow a helical movement of the dose member with respect to the body, a drive sleeve rotationally coupled to the dose member, and stop means provided to restrict or inhibit a movement of the drive sleeve in the proximal direction and in the distal direction with respect to the body, the drive sleeve and the piston rod being unidirectionally coupled.

Drive mechanism for a drug delivery device and drug delivery device

A drive mechanism for a medication delivery device () is proposed, the drive mechanism comprising a housing () having a proximal end and a distal end, a rotation member () which is adapted to be rotated in a first direction with respect to the housing during setting of a dose of a medication and to be rotated in a second direction with respect to the housing during delivery of the dose, the second direction being opposite to the first direction, a piston rod () which is adapted to be displaced in a distal direction with respect to the housing for delivering the dose, a drive member () which follows rotational movement of the rotation member in the second direction during delivery of the dose, and a stop member () which prevents rotational movement of the drive member with respect to the housing in the first direction during setting of the dose, wherein the rotational movement of the drive member in the second direction is converted into movement of the piston rod in the distal direction with respect to the housing. Furthermore, a medication delivery device is provided for.

Drive mechanism for a medication delivery device and medication delivery device

A resettable drive mechanism for a medication delivery device comprising a housing and a drive member rotatable in a second direction for delivering a dose. A piston rod driven distally when a drive member rotates in the second direction. A stop member prevents rotation of the drive member in a first direction opposite the second direction, when the stop member engages the drive member. A clutch member is movable between a delivery and reset position. When the clutch member is in the delivery position, the stop member and the drive member engage and the drive member is prevented from rotating in the first direction. When the clutch member is in the reset position, the drive member and the stop member disengage. The drive member is rotatable in the first direction.

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Frankfurt am Main, Germany

Uwe Boeser