US 12,144,969 B1
Attachment mechanism, module and assembly herewith
Oliver Fogg, Bristol (GB); Michael Jugl, Frankfurt am Main (DE); and Martin Vitt, Frankfurt am Main (DE)
Assigned to Sanofi, Paris (FR)
Filed by Sanofi, Paris (FR)
Filed on Feb. 28, 2024, as Appl. No. 18/590,727.
Int. Cl. A61M 5/31 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/31 (2013.01) [A61M 5/31548 (2013.01); A61M 2205/581 (2013.01)] 20 Claims
OG exemplary drawing
 
16. An assembly comprising:
a drug delivery device comprising:
a device housing with a container configured to receive a drug or a cartridge filled with a drug,
a dose setting unit comprising a dose dial user interface at least rotationally moveable with respect to the device housing during dose setting and an injection user interface at least axially moveable with respect to the device housing for causing dose dispensing, and
a dose delivery unit comprising a plunger at least axially moveable with respect to the device housing during dose dispensing; and
an electronic add-on module configured to attach to the drug delivery device, the electronic add-on module comprising:
a housing,
a gripping portion comprising an elastically deformable sleeve with a longitudinal axis, a distal end, and an opposite proximal end which are axially constrained, and
an actuator for operating the gripping portion between an open condition and a clamping condition,
wherein the proximal end of the sleeve is coupled to the housing and the distal end of the sleeve is coupled to the actuator, and
wherein the actuator is configured rotate the distal end and the proximal end of the sleeve relative to each other, thereby operating the gripping portion between the open condition and the clamping condition,
wherein the sleeve of the electronic add-on module is configured to abut the dose dial user interface when the module is attached to the dose dial user interface of the drug delivery device and the gripping portion is in the clamping condition.