US 12,274,867 B2
Medicament injection device
Michael Schabbach, Frankfurt am Main (DE); Anthony Paul Morris, Warwick (GB); Ronald Antony Smith, Warwick (GB); Brian Charles Molyneux, Warwick (GB); Paul Richard Draper, Warwick (GB); Craig Ashley Mason, Warwick (GB); Oliver Charles Gazeley, Warwick (GB); Daniel Edward Clark, Warwick (GB); David Aubrey Plumptre, Warwick (GB); Aidan Michael O'Hare, Warwick (GB); Richard James Thomas, Warwick (GB); Felix Kramer, Wil (CH); Beat Wyss, Wil (CH); and Philipp Müller, Wil (CH)
Assigned to Sanofi, Paris (FR)
Filed by SANOFI, Paris (FR)
Filed on Sep. 12, 2022, as Appl. No. 17/943,027.
Application 17/943,027 is a division of application No. 16/766,144, granted, now 11,642,468, previously published as PCT/EP2018/082438, filed on Nov. 23, 2018.
Claims priority of application No. 17306626 (EP), filed on Nov. 23, 2017.
Prior Publication US 2023/0001096 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01); A61M 5/32 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/3155 (2013.01) [A61M 5/31551 (2013.01); A61M 5/3202 (2013.01); A61M 2005/3126 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/52 (2013.01); A61M 2205/581 (2013.01); A61M 2205/8212 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A module configured to be used with or applied to an injection device, the module comprising a sensor arrangement comprising:
a first optical sensor configured to detect a movement of a movable dosage programming component comprising a rotary encoder system having a predefined angular periodicity relative to the sensor arrangement during dosing of a medicament, wherein the first optical sensor is configured to operate in a strobe-sampling mode along a first time series of strobe pulses, and
a second optical sensor configured to detect a rotary encoder system movement of the rotary encoder system relative to the second optical sensor, wherein the second optical sensor is configured to operate in a strobe-sampling mode along a second time series of strobe pulses, the first time series and second time series having a pulse density per time unit or a relative pulse phase varying according to a kinematical state of a dose programming component; and
a processor arrangement configured to, based on the movement of the movable dosage programming component or the rotary encoder system movement, determine a medicament dosage administered by the injection device.