US 12,186,538 B1
Electronic add-on module and assembly of an electronic add-on module and a drug delivery device
Paul Richard Draper, Warwickshire (GB); Andrew Wallace, Warwickshire (GB); Aidan Michael O'Hare, Warwickshire (GB); and Robert Frederick Veasey, Warwickshire (GB)
Assigned to Sanofi, Paris (FR)
Filed by Sanofi, Paris (FR)
Filed on May 10, 2024, as Appl. No. 18/660,854.
Int. Cl. A61M 5/315 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/31546 (2013.01) [A61M 2005/3126 (2013.01); A61M 2205/3306 (2013.01)] 20 Claims
OG exemplary drawing
 
17. An assembly comprising: a drug delivery device comprising a device housing and a device dial grip which is rotatable relative to the device housing for setting a dose; and an electronic add-on module configured for releasable attachment to the drug delivery device, the electronic add-on module comprises at least: a body configured to be releasably attached to the device housing; a coupler configured to be releasably attached to the device dial grip; and a dial configured to be axially displaceable with respect to the coupler, wherein an electric power source, a circuit board assembly electrically connected to the electric power source, and a sensor arrangement electrically connected to the circuit board assembly are arranged in the dial, wherein the electronic add-on module is configured to be switched between a dialing mode in which the dial is rotationally constrained to the coupler and a dispensing mode by an axial displacement of the dial relative to the body, wherein the electronic add-on module further comprises a tube which is configured to be permanently rotationally constrained to the body and configured to be axially displaceable relative to the body and in that the dial is configured to be rotatable relative to the tube at least in the dialing mode.