US 11,872,369 B1
Wearable medicament delivery device with leakage and skin contact sensing and method of use thereof
David R. Schiff, Highland Park, NJ (US); Vladlena Belozerova, Philadelphia, PA (US); and Jason Zerweck, Media, PA (US)
Assigned to Fresenius Kabi Deutschland GmbH, Bad Homburg (DE)
Filed by Fresenius Kabi Deutschland GmbH, Bad Homburg (DE)
Filed on Feb. 18, 2021, as Appl. No. 17/178,799.
Int. Cl. A61M 5/14 (2006.01); A61M 5/142 (2006.01); A61K 31/4015 (2006.01); A61M 5/158 (2006.01)
CPC A61M 5/14248 (2013.01) [A61K 31/4015 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/1583 (2013.01); A61M 2005/1585 (2013.01); A61M 2205/15 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medicament delivery device comprising:
a housing having an underside comprising an adhesive pad adapted to be proximate to a skin surface;
a reservoir disposed in the housing, the reservoir configured to be filled with a medicament to be delivered to a patient;
a cannula disposed within the housing and coupled to the reservoir, the cannula configured to protrude from a port defined by the housing to be positioned in the skin surface; and
a capacitive sensor configured to detect whether the medicament has leaked from the delivery device, the capacitive sensor comprising a first conductor surrounding the port and disposed in a portion of the underside of the housing and a second conductor disposed in the adhesive pad and at an edge thereof in a position that is expected to stay dry during a leakage.