US 12,220,565 B2
Dose control system for injectable-drug delivery devices and associated methods of use
Alain Marcoz, Montmorin (FR); Emmanuel Jez, Clermont Ferrand (FR); Sylvain Diogo, Vergongheon (FR); Patrice Gourbet, Nonette (FR); Alexandre Pereira, Perignat-les-Sarlieve (FR); Mathieu Pollard, Pont du Chateau (FR); and Kevin Gillet, Orcines (FR)
Filed by BIOCORP PRODUCTION S.A.S., Issoire (FR)
Filed on Sep. 21, 2022, as Appl. No. 17/933,856.
Application 17/933,856 is a continuation of application No. 15/746,422, granted, now 11,524,120, previously published as PCT/IB2015/001770, filed on Jul. 21, 2015.
Prior Publication US 2023/0020134 A1, Jan. 19, 2023
Int. Cl. A61M 5/315 (2006.01); G01D 5/14 (2006.01); G01R 33/02 (2006.01)
CPC A61M 5/31568 (2013.01) [A61M 5/31533 (2013.01); G01D 5/145 (2013.01); G01R 33/0206 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/581 (2013.01); A61M 2205/584 (2013.01); A61M 2205/60 (2013.01); A61M 2209/00 (2013.01); G01D 5/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A dose monitoring system for mounting on an injection pen, the injection pen having a body extending along a longitudinal axis and a dose setting wheel rotatably mounted on an end of the body, the dose setting wheel being configured for longitudinal displacement along the longitudinal axis in response to rotation of the dose setting wheel with respect to the body, the dose monitoring system comprising:
a magnet configured to be attached to an outer surface of the dose setting wheel, such that said magnet rotates together with the dose setting wheel and moves along the longitudinal axis in response to rotation of the dose setting wheel;
a housing configured to be attached to an outer surface of the body of the injection pen, the housing comprising an integrated control unit and at least one magnetometer in electrical connection with said integrated control unit, the housing is configured to be mounted to the outer surface such that said at least one magnetometer remains stationary with respect to the body and with respect to said longitudinal axis;
the integrated control unit, when the housing is mounted on the injection pen, being configured to register at least one magnetic field sensed by the at least one magnetometer when the magnet co-rotates with the dose setting wheel, and moves along said longitudinal axis during setting of a dose by a user on the injection pen;
the integrated control unit being further configured, when the housing is mounted on the injection pen, to calculate a dose set by the user of the injection pen from the at least one magnetic field registered with said integrated control unit.