Patent ID: 11872369
Assignee: FRESENIUS KABI DEUTSCHLAND GMBH
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 16:
17. A method for detecting a leak from a medicament delivery device, the method comprising:
providing 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 in the housing to pierce the skin surface; and
a capacitive sensor configured to detect whether the medicament has leaked from the reservoir or the cannula, 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;

delivering, by the delivery device, the medicament to the patient; and
detecting, by the capacitive sensor, whether the medicament has leaked from the delivery device.