Sanofi-a Ventis Deutschland Gmbh

Christiane Schneider

Michael Jugl

Axel Teucher

Stefan Blancke

Michael Harms

Tobias Stever

Ulrik Jakobi

Martin Vitt

Torsten Kraft

Ngoc-Jane Lam

Michael Joest

An assembly for a drug delivery device is presented. The assembly comprises a housing and a piston rod having a longitudinal axis, a distal end and a proximal end. The piston rod further comprises a piston rod interaction feature, and a piston rod guide being movable with respect to the piston rod, the piston rod guide further comprising a guide interaction feature corresponding to the piston rod interaction feature, the piston rod guide being movable with respect to the piston rod to switch between a first state and a second state of the assembly, the second state being different from the first state. The assembly is configured such that, in a first state of the assembly, the piston rod guide is in a first axial position relative to the piston rod in which the piston rod interaction feature is arranged to interact with the guide interaction feature to prevent proximal movement of the piston rod with respect to the housing, and wherein, in a second state of the assembly being different from the first state, the piston rod guide is in a second axial position relative to the piston rod, the second axial position being different from the first axial position, wherein, in the second axial position, the piston rod interaction feature and the guide interaction feature are arranged such that proximal movement of the piston rod with respect to the housing is allowed.

Assembly for a drug delivery device

An assembly for a drug delivery device is provided comprising a housing, and a lead screw having a longitudinal axis, a distal end and a proximal end, the lead screw being rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing, the lead screw further including a thread. The assembly further comprises a drive nut threadedly engaged with and screwable along the lead screw thread and a dial link connected with the drive nut and axially movable and rotatably fixed relative to the drive nut, where the dial link comprises a first portion of a feedback ratchet. The assembly is configured such that, during dose delivery, the assembly generates a feedback signal.

Drug delivery device with dose delivery clicker

The present disclosure relates to a cartridge holder of an injection device, the cartridge holder comprising a tubular shaped elongated sleeve extending in an axial direction to accommodate a cartridge filled with a medicament, wherein the sleeve () comprises:

Cartridge holder of an injection device

A spring assisted drug delivery device comprising: a housing; a piston rod having a longitudinal axis, a distal end and a proximal end that is axially movable in a distal direction relative to the housing, a mid-body fixed inside of the housing and coupled to the piston rod in such a manner that the piston rod is axially movable in a distal direction relative to the mid-body, and wherein a preloaded spring is operatively coupled to the piston rod in such a manner that the spring is released and the stored force in the spring supports driving the piston rod in the distal direction during a dose administration step.

Spring assisted drug delivery device

The present disclosure provides for a drive assembly for a drug delivery device. The drive assembly comprises a housing; a piston rod having a longitudinal axis, a distal end and a proximal end and being axially movable in a distal direction relative to the housing and a mid-body axially fixed inside of the housing and coupled to the piston rod. The mid-body comprises at least one metal ratchet arm configured to prevent the piston rod from moving in the proximal direction. Moreover, a drug delivery device with such a drive assembly is presented.

Drug delivery device

A spring assisted drug delivery device is provided comprising a housing and a lead screw having a longitudinal axis, a distal end and a proximal end that is rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing. The device further comprises a drive nut threadedly engaged and screwable along the lead screw threaded shaft and a number sleeve threadedly engaged with the housing to be screwable relative to the housing. A dial link is connected with the drive nut and axially movable and rotatably fixed relative to the drive nut and an inner sleeve is threadedly engaged with the number sleeve, the inner sleeve being axially movable and rotatably fixed relative to the housing. A mid-body is axially fixed inside of the housing. A spring is provided that assists a user of the device during a dose administration step.

A drive assembly for a drug delivery device includes a housing; a number sleeve threadedly engaged with the housing; a dial link rotatably fixed with the number sleeve in a first axial arrangement relative to each other, the number sleeve being rotatable relative to the dial link in a second axial arrangement; a clutch component connected to an inner proximal section of the number sleeve through multiple flexible assembly fingers. The clutch component can engage the number sleeve with the dial link in the first axial arrangement and disengage the number sleeve from the dial link in the second axial arrangement. The drive assembly includes means for preventing an access to the flexible assembly fingers from the outer proximal section of the number sleeve and/or the flexible assembly fingers from flexing inwardly and disengaging from the connection with the inner proximal section.

Drug delivery device with anti-counterfeit features

A drug delivery device is provided with a cartridge holder having at least one guide track, and a body having at least one interaction member adapted and arranged to mechanically cooperate with the at least one guide track. The guide track has a first section and a second section, wherein the path which is defined by the first section encloses an angle with the longitudinal axis of the device, wherein the angle which is enclosed by the path defined by the first section with the longitudinal axis is smaller than the angle which is enclosed by the path defined by the second section with the longitudinal axis.

Drug delivery device and cartridge holder for a drug delivery device

A method and an assembly for providing a drug delivery device is presented. The assembly includes a housing and an end of dose feedback connection provides the user with an audible and/or tactile signal to indicate that the drug delivery is completed. A first section of the end of dose feedback connection is located on a distal portion of an inner sleeve and a second section of the end of dose feedback connection is located on the mid-body.

Drug delivery device with end of dose feedback

An assembly for a drug delivery device is provided comprising a housing, a cartridge holder releasably connectable to the housing, a resilient member, and an interaction member which is configured to mechanically cooperate with the resilient member and with the cartridge holder. The resilient member is configured to rotationally bias the interaction member. The assembly has a locked state where the cartridge holder is connected to the housing, the cartridge holder being obstructed from movement with respect to the housing, and an unlocked state where the connection between the cartridge holder and the housing is released, the cartridge holder being freely moveable with respect to the housing.

Assembly for a drug delivery device and drug delivery device

A drive assembly for a drug delivery device is disclosed. The drive assembly is connectable with a cartridge holder and comprises a housing, a piston rod, the piston rod being movable in a distal direction for drug delivery, and a guide nut, the guide nut being rotatable relative to the housing around an axis of the assembly and provided for guiding the piston rod. A locking means is provided which is enabled to take an engaged state in which the locking means is engaged with the guide nut in order to prevent rotation of the guide nut and to take a disengaged state in which the locking means is disengaged from the guide nut in order to allow rotation of the guide nut. Moreover, a coupling means is provided, the coupling means being rotatable relative to the housing around the axis of the assembly for interaction with the locking means in order to change between the engaged state and the disengaged state of the locking means.

Growing community of inventors

Frankfurt am Main, Germany

Christiane Schneider