US 12,281,927 B2
Dose measurement system and method
Richard Whalley, Cambridge, MA (US); and James White, Cambridge, MA (US)
Assigned to Bigfoot Biomedical, Inc., Milpitas, CA (US)
Filed by Bigfoot Biomedical, Inc., Milpitas, CA (US)
Filed on Jun. 3, 2024, as Appl. No. 18/731,813.
Application 18/731,813 is a continuation of application No. 18/160,097, filed on Jan. 26, 2023, granted, now 12,000,725.
Application 18/160,097 is a continuation of application No. 16/861,899, filed on Apr. 29, 2020, granted, now 11,566,931, issued on Jan. 31, 2023.
Application 16/861,899 is a continuation of application No. 16/235,286, filed on Dec. 28, 2018, granted, now 10,684,156, issued on Jun. 16, 2020.
Application 16/235,286 is a continuation of application No. 15/464,466, filed on Mar. 21, 2017, granted, now 10,190,901, issued on Jan. 29, 2019.
Application 15/464,466 is a continuation of application No. 14/982,650, filed on Dec. 29, 2015, granted, now 9,638,564, issued on May 2, 2017.
Application 14/982,650 is a continuation of application No. 14/548,679, filed on Nov. 20, 2014, granted, now 9,255,830, issued on Feb. 9, 2016.
Application 14/548,679 is a continuation of application No. PCT/US2013/041982, filed on May 21, 2013.
Application PCT/US2013/041982 is a continuation in part of application No. 13/796,889, filed on Mar. 12, 2013, granted, now 8,817,258, issued on Aug. 26, 2014.
Claims priority of provisional application 61/754,262, filed on Jan. 18, 2013.
Claims priority of provisional application 61/649,919, filed on May 21, 2012.
Prior Publication US 2024/0318993 A1, Sep. 26, 2024
Int. Cl. G01F 22/00 (2006.01); A61M 5/168 (2006.01); G01F 11/02 (2006.01); G01F 13/00 (2006.01); G01F 17/00 (2006.01); G01F 23/284 (2006.01); A61M 5/31 (2006.01); G01N 21/17 (2006.01)
CPC G01F 22/00 (2013.01) [A61M 5/16804 (2013.01); A61M 5/16886 (2013.01); A61M 5/1689 (2013.01); G01F 11/021 (2013.01); G01F 13/00 (2013.01); G01F 17/00 (2013.01); G01F 23/284 (2013.01); A61M 2005/3126 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/70 (2013.01); G01N 21/1702 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of operating a dose measurement system, comprising:
detecting a drug delivery device being coupled to the dose measurement system; and
scanning the drug delivery device in response to detecting the drug delivery device being coupled to the dose measurement system, the scanning of the drug delivery device including:
activating at least one light source to emit electromagnetic radiation towards the drug delivery device,
generating a signal signature representing the electromagnetic radiation detected by a plurality of sensors through the drug delivery device,
comparing the signal signature to reference signature to estimate a dose of a drug dispensed by the drug delivery device, and
in response to the estimated dose being greater than zero, storing the estimated dose in an onboard memory and operating the dose measurement system in a power save mode.