Patent ID: 11925749
Assignee: FUNAI ELECTRIC CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A pharmaceutical drug delivery device comprising:
a drug delivery device body;
a fluid outlet nozzle attached to the drug delivery device body;
a fluid jet ejection cartridge containing a liquid pharmaceutical drug is disposed in the drug delivery device body, wherein a fluid ejection head is attached to the fluid jet ejection cartridge and the fluid ejection head is in fluid flow communication with the fluid outlet nozzle; and
an elongate, serpentine air flow path between an outer surface of the fluid jet ejection cartridge and an inner surface of the fluid outlet nozzle, wherein the elongate, serpentine air flow path provides a reduced pressure differential adjacent to a surface of the fluid ejection head upon use of the drug delivery device and provides a humidification zone.