US 12,329,945 B2
Dose recording device
Stephan Riedel, Frankfurt am Main (DE); and Matthias Felber, Will (CH)
Assigned to SANOFI, Paris (FR)
Appl. No. 16/772,872
Filed by SANOFI, Paris (FR)
PCT Filed Dec. 17, 2018, PCT No. PCT/EP2018/085113
§ 371(c)(1), (2) Date Jun. 15, 2020,
PCT Pub. No. WO2019/121449, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 17306806 (EP), filed on Dec. 18, 2017.
Prior Publication US 2021/0162135 A1, Jun. 3, 2021
Int. Cl. A61M 5/315 (2006.01)
CPC A61M 5/31568 (2013.01) [A61M 5/31551 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/332 (2013.01); A61M 2205/3576 (2013.01); A61M 2205/8206 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A dose recording device for a drug delivery device, the drug delivery device comprising a housing, a cartridge holder configured to receive a cartridge for holding a plurality of doses of a drug, and a dose setting member connected to the housing and configured to set a dose of the drug, the dose recording device comprising:
a device housing defining a longitudinal axial direction; and
a measurement system having an optical sensor rotationally fixed to a portion of the device housing;
wherein the device housing is configured to be mounted directly to the dose setting member and is configured to rotationally fix to the dose setting member when mounted to the dose setting member; and
wherein the optical sensor is configured to detect an outer surface structure of the housing of the drug delivery device moving relative to the device housing of the dose recording device to generate relative movement data and wherein the measurement system is configured to store or to process the relative movement data so as to provide information on a delivery of the dose of the drug.