US 11,980,747 B2
Acoustic detection of a usage of an injection device
Matthias Felber, Winterthur (CH); Nathanael Wettstein, Seuzach (CH); August Enzler, Wil (CH); and Felix Kramer, Wil (CH)
Assigned to Sanofi, Paris (FR)
Filed by Sanofi, Paris (FR)
Filed on Feb. 21, 2023, as Appl. No. 18/172,294.
Application 18/172,294 is a continuation of application No. 16/954,652, granted, now 11,607,501, previously published as PCT/EP2018/085393, filed on Dec. 18, 2018.
Claims priority of application No. 17306867 (EP), filed on Dec. 21, 2017.
Prior Publication US 2023/0191039 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01); A61M 5/31 (2006.01); A61M 5/50 (2006.01); G01F 23/296 (2022.01)
CPC A61M 5/3157 (2013.01) [A61M 5/5086 (2013.01); G01F 23/2968 (2013.01); A61M 2005/3126 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/3389 (2013.01); A61M 2205/3576 (2013.01); A61M 2205/43 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medicament injection system comprising:
an injection device comprising:
a medicament reservoir configured to store a medicament to be expelled by the injection device;
an acoustic source configured to generate an acoustic signal comprising information indicative of an amount of the medicament stored in the medicament reservoir, wherein a portion of a wall of the injection device that is proximal to the acoustic source defines an opening configured to enhance transmission of the acoustic signal; and
an external device comprising:
an acoustic receiver configured to record the acoustic signal; and
one or more processors configured to process the recorded acoustic signal and to generate injection device data based on the processed recorded acoustic signal,
wherein the external device is configured to display information based on the injection device data.