Nebulizer Nozzle Module Vortex Flow Control
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Solution Overview
Problem
Conventional nebulizer devices lack internal air guiding structures, leading to turbulent flows that cause atomized particles to aggregate and condense, reducing the effectiveness of drug delivery to the lower respiratory tract.
Innovation Solution
The nebulizer device incorporates a nozzle module with a main body unit and guide unit, featuring openings and a recessed part, which creates a high-pressure flow field vortex and directional pressure differences to guide atomized particles smoothly, reducing aggregation and condensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If holes are created on the nebulizer device to introduce external air, then air flow is improved, but turbulent flow is generated causing atomized particles to aggregate and collide
Solution Approach 1:
The guide unit acts as an intermediary structure between the external air inlet and the atomized particles. It includes a guiding part with a recessed part that shapes the air flow to reduce turbulence, allowing external air to be introduced without causing harmful particle aggregation and collision
Solution Approach 2:
The guide unit changes the flow parameters of the external air by creating a controlled flow pattern through its recessed structure. This transforms the turbulent flow into a more laminar flow, reducing the harmful effects on atomized particles while maintaining adequate air flow for nebulization
2Device complexity
If no air guiding structures are provided inside the nebulizer device, then device complexity is reduced, but aerosol guiding efficiency is poor
Solution Approach 1:
The nozzle module is segmented into a main body unit and a detachable guide unit. This segmentation allows the air guiding function to be added as a separate component, improving aerosol guiding efficiency without significantly increasing the overall device complexity. The guide unit can be easily attached and removed for cleaning or replacement
3Productivity
If guide unit with recessed part is added to the nozzle module, then aerosol guiding efficiency is improved, but device complexity increases
Solution Approach 1:
The guide unit serves multiple functions: it guides the external air flow, reduces turbulence, protects atomized particles from aggregation, and can be detached for cleaning. By combining multiple functions into a single component, the design improves aerosol guiding efficiency without proportionally increasing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances aerosol guiding efficiency by minimizing particle collisions and condensation, ensuring smaller particle sizes reach the lower respiratory tract for improved drug delivery.
Implementation Method 1
creates a high-pressure flow field vortex
Implementation Method 2
directional pressure differences to guide atomized particles
Data Source
AI summary
A nebulizer device and a nozzle module are provided. The nebulizer device includes a nebulizer module, the nozzle module, and a control module. The nozzle module includes a main body unit and a guide unit. The main body unit can be detachably connected to the nebulizer module. The main body unit has a plurality of openings penetratingly formed therethrough, an accommodating space, and an output part, and the openings and the output part are in spatial communication with the accommodating space. The main body unit corresponds to an inner wall of the accommodating space and protrudes toward the accommodating space to form a plurality of guiding parts, and each of the guiding parts is adjacent to one of the openings. The guide unit is disposed in the accommodating space and has a recessed part. The control module can be detachably connected to the main body unit.