US 12,357,750 B1
Wearable drug delivery device with drug delivery indication
David R. Schiff, Highland Park, NJ (US); and Sharon D. West, Elkins Park, PA (US)
Assigned to Fresenius Kabi Deutschland GmbH, Bad Homburg (DE)
Filed by Fresenius Kabi Deutschland GmbH, Bad Homburg (DE)
Filed on Sep. 5, 2024, as Appl. No. 18/825,061.
Application 18/825,061 is a continuation of application No. 17/886,586, filed on Aug. 12, 2022, granted, now 12,102,791.
Application 17/886,586 is a continuation of application No. 17/246,198, filed on Apr. 30, 2021, granted, now 11,419,976, issued on Aug. 23, 2022.
Int. Cl. A61M 5/142 (2006.01); A61M 5/145 (2006.01); A61M 5/168 (2006.01)
CPC A61M 5/14248 (2013.01) [A61M 5/1452 (2013.01); A61M 5/16881 (2013.01); A61M 2005/14252 (2013.01); A61M 2202/0007 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A drug delivery device for delivering pegfilgrastim, comprising:
a housing having a surface comprising a translucent material;
a buzzer configured to provide an audible indication that the drug delivery device has been activated based on being filled with an amount of pegfilgrastim;
an adhesive pad associated with a lower surface of the housing and configured to removably attach to a human body surface;
a generally rigid drug container positioned within the housing and having an outlet;
a plunger movably positioned within the drug container and movable from a first position to a second position and configured for reversible movement;
a needle fluidically connected to the outlet of the drug container and configured to define at least a portion of a fluid flow path between the drug container and the human body surface;
a check valve incorporated into the fluid flow path and configured to selectively allow and prevent flow of the pegfilgrastim through the fluid flow path;
a controller configured to execute a drug delivery routine; and
an indicator light controlled by the controller to provide through the surface comprising the translucent material a first indication that the drug delivery device is performing a drug delivery procedure and a second indication that the drug delivery device has completed the drug delivery procedure.