Sanofi-A Ventis Deutschland Gmbh

Ulrich Brüggemann

Christopher Clarkson Jones

Paul Richard Draper

Michael Harms

Steffen Raab

Uwe Dasbach

Philippe Nzike

Christopher Nigel Langley

Christopher John Jones

Scott Preece

Francisco Soares

Andrew Tubb

Uwe Boeser

James Holdgate

Daniel Tyce

Lee Adams

David Glenton

Andrew Ph D Tubb

Christopher Jones

Stephan Di Müller-Pathle

This invention relates to an injection device for delivering a medicament to the human or animal body, in particular, but not exclusively, to a device having a replaceable medicament cartridge, including an auto-injector, wherein the injector device comprises: a housing; a piston rod for driving a bung of a medicament container; a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament; and control means for controlling operation of the device.

Medical injection device with electric motor drive control

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

A medicament delivery device comprises a housing, a telescopic piston rod assembly for driving a bung of a medicament container, and a drive mechanism for the telescopic piston rod assembly. The telescopic piston rod assembly comprises a plunger for driving a bung, a key for allowing predominantly axial movement between the plunger and the housing and an input drive telescopically coupled to the plunger and supported for rotational and axial movement relative the housing. The drive mechanism additionally comprises a transfer drive that operates to rotate the input drive. As the input drive rotates, it moves axially relative to the housing, expanding telescopically relative to the plunger.

Medicament delivery devices

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

An injection device for delivering a medicament to the human or animal body. The injection device comprising a housing, a piston rod for driving a bung of a medicament container, a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament; and controller for controlling operation of the device.

A medicament delivery device comprises a housing, a holder within the housing for receiving a medicament cartridge, a piston rod for driving a bung of the medicament cartridge, a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament and control means for controlling operation of the device. The device is additionally provided with a bung sensor for sensing when the piston rod is in contact with the bung and the control means is operative for advancing the drive of the piston rod towards the bung.

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.

Resettable drive mechanism for a medication delivery device and medication delivery device

A drive assembly suitable for a medication delivery device comprises a housing, a drive member, a piston rod, a rotation sleeve, a guide member and a biasing member. The rotation sleeve is arranged to be displaced in a distal direction when the drive member is displaced in the distal direction by mechanical interaction of the drive member and the rotation sleeve with the rotation sleeve and the drive member both being guided axially by the at guide member. The biasing member exerts a force on the rotation sleeve acting in the proximal direction, said force being transformed into a rotational movement of the rotation sleeve. The rotational movement of the rotation sleeve being transformed into a rotational movement of the piston rod.

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Frankfurt am Main, Germany

Ulrich Brüggemann