DRUG DELIVERY DEVICE WITH PROXIMITY SENSOR

摘要

A drug delivery device, in the form of an injector, may include one of a number of systems for limiting the delivery of a medical fluid or drug product in case of movement of (e.g., removal of) the injector relative to the patient as determined by a proximity sensor. The drug delivery system may in the alternative or in addition include systems for indicating the amount of medical fluid or drug product delivered (or not delivered) in case of movement of (e.g., removal of) the injector relative to the patient as determined by the proximity sensor. The injector may be, for example, an on-body injector or an hand-held autoinjector.

主权项

1. An on-body injector comprising:
a reservoir including a bore having a first end and a second end, and a plunger assembly including a plunger moveable within the bore between the first and second ends; a volume of a drug product disposed in the reservoir, the drug product comprising a granulocyte colony-stimulating factor (G-CSF); a cannula having an operational state wherein the cannula is connected in fluid communication with the reservoir; a drive coupled to the plunger assembly to move the plunger between the first and second ends for moving the drug product out of the reservoir and through the cannula; a housing, wherein the reservoir, the cannula, and the drive are disposed at least partially within the housing; and a proximity sensor operably coupled to move relative to the housing, the proximity sensor having a first sensor state wherein the proximity sensor extends from the housing and a second sensor state wherein the proximity sensor is retracted toward the housing relative to the first sensor state.