Device and method for injecting liquid drug into nasal cavity and paranasal sinuses

Abstract

The present invention relates to a liquid drug injection device for injecting a liquid drug into a nasal cavity and paranasal sinuses through a nostril and, more specifically, to a device for injecting a liquid drug into a nasal cavity and paranasal sinuses, the device being characterized in that: an adaptor, which is formed of an elastic material such that compression and restoration can be carried out and which has an accommodation space therein, is mounted at a discharge part of a liquid drug storage container; a liquid drug stored in the liquid drug storage container is injected into the nasal cavity through the adaptor so as to fill the nasal cavity with the liquid drug; while the nasal cavity is filled with the liquid drug, the liquid drug storage container is repeatedly pressed toward the adaptor and released so as to change the volume of the adaptor; the change in the volume of the adaptor generates turbulence or sloshing of the liquid drug filled in the nasal cavity; and the generated turbulence and sloshing promotes the liquid drug to contact the surface of the nasal cavity and flow toward the paranasal sinuses so as to enhance the effect of cleaning the surfaces of the nasal cavity and the paranasal sinuses and injecting the liquid drug, and to increase the effectiveness of preventing and treating nasal diseases.

Description

technical field [0001] The present invention relates to a drug delivery device and method for injecting medicine into the nasal cavity and sinuses through nostrils. The discharge part of the storage container, the adapter is formed of elastic material, so it can realize compression and restoration and has a containing space inside, and the medicine stored in the medicine storage container is injected into the nasal cavity by means of the adapter. In this state, the The drug storage container repeatedly pressurizes and releases pressure to the side of the adapter to change the volume of the adapter. The change in the volume of the adapter will cause turbulence or sloshing of the drug filled in the nasal cavity. The resulting turbulence And sloshing can promote the contact of the nasal cavity surface of the drug, and promote the flow of the drug to the sinuses, thereby improving the cleaning and drug effect of the nasal cavity and sinus surface, and can improve the effect of pre...

AI Technical Summary

Problems solved by technology

The prior art document 2 can control the intensity of the drug supply, but it is still difficult to clean the inside of the turbinate or the sinuses due to the spraying method

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