Device and Method for Liquid Drug Injection into Nasal Cavity and Paranasal Sinuses

摘要

The present invention relates to a drug injecting device for injecting a drug to a nasal cavity and a paranasal cavity through a nostril. The present invention is made of an elastic material to facilitate compression and restoration, and mounts an adaptor having a storing space therein on a discharging unit of a drug storing container. The present invention fills the drug in the nasal cavity by injecting the drug stored in the drug storing container to the nasal cavity through the adaptor, and changes volume of the adaptor by repeatedly compressing and releasing the drug storing container to the adaptor. A volume change amount of the adaptor generates turbulence or sloshing in the drug filled in the nasal cavity. The generated turbulence or sloshing promotes touch of nasal cavity surface with the drug, and drug flow to the paranasal cavity. Therefore, the present invention can increase a cleaning effect for a nasal cavity and paranasal cavity surface and a drug injecting effect, and nasal cavity disease preventing and treating effects.