Nasal drug delivery device for otolaryngology head and neck surgery

A technology for nasal drug delivery and ear, nose and throat, applied in the field of medical devices, can solve problems such as instability of liquid preparations, achieve soft texture, avoid cross-infection, and enhance relatively stable effects

Pending Publication Date: 2020-05-08
NANYANG CITY CENT HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While existing nasal drug delivery devices on the market are mostly suitable for liquid drug formulations, they are not as effective as powdered drugs because liquid formulations tend to be more unstable and require certain storage requirements

Method used

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  • Nasal drug delivery device for otolaryngology head and neck surgery
  • Nasal drug delivery device for otolaryngology head and neck surgery
  • Nasal drug delivery device for otolaryngology head and neck surgery

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1 to Figure 3 , a nasal drug delivery device for ENT head and neck surgery, comprising an air filter assembly and a powder drug delivery assembly, the air filter assembly includes an activated carbon filter 4 and an antibacterial filter 5, and the activated carbon filter 4 and the antibacterial filter 5 are built into the air In the inlet pipe 3, the air inlet pipe 3 is threadedly connected to the connecting pipe 2, and the connecting pipe 2...

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Abstract

The invention relates to the technical field of medical equipment, and in particular to a nasal drug delivery device for otolaryngology head and neck surgery. The device comprises an air filter component and a powder drug delivery component, the air filter component comprises an active carbon filter screen and an antibacterial filter screen, the active carbon filter screen and the antibacterial filter screen are embedded in an air inlet pipe, the air inlet pipe is in screwed connection with a connecting pipe, the powder drug delivery component comprises a nozzle, the nozzle is in screwed connection with a contraction pipe, the contraction pipe is in screwed connection with the air inlet pipe, a sealing element is arranged between the contraction pipe and the air inlet pipe, the nozzle is provided with a powder inlet pipe, a piston is arranged in the powder inlet pipe, the nozzle is communicated with a throat pipe, the throat pipe is connected with an expansion pipe, and the outlet endof the expansion pipe is provided with a first eccentric hole. According to the present invention, an eccentric design is adopted, so that dry powder sprayed from a second eccentric hole can face theoutside of nasal cavity, the dry powder and airflow can be prevented from hitting the nasal septum, the spray can also be prevented from directly impacting the nasopharynx part to cause irritation, and the best absorption effect of the dry powder can be achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a nasal drug delivery device for otolaryngology head and neck surgery. Background technique [0002] Nasal administration refers to a method of administration through the nasal cavity and absorption through the nasal mucosa to exert local or systemic therapeutic or preventive effects. The total area of ​​the nasal cavity is about 150 square millimeters, and the surface is covered by mucous membrane, which is 2 to 4 millimeters thick. The nasal mucosa is rich in blood vessels and lymphatic vessels, and its unit blood flow is larger than that of muscles, brains, and livers. Peptide drugs directly enter the circulatory system after passing through the nasal mucosa, avoiding the first-pass effect of the liver. There are 4 pairs of paranasal sinuses next to the nose, and their mucous membranes are continuous with the nasal mucous membranes, so drugs are easily absorbed and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M31/00A61M13/00
CPCA61M31/007A61M13/00
Inventor 张贵袁泉良
Owner NANYANG CITY CENT HOSPITAL
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