Multi-Liquid Nebulizing Nozzle With Multiple Collision Points
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Solution Overview
Problem
Existing inhalation devices are limited to nebulizing a single type of liquid or a maximum of two liquids simultaneously, and they require significant space, making it difficult to deliver high doses of medically active liquids with low solubility or multiple incompatible active ingredients effectively.
Innovation Solution
A nozzle design with at least four ejection channels that intersect to form multiple collision points, allowing simultaneous nebulization of multiple liquids without increasing the device's size, and enabling separate delivery of chemically incompatible ingredients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single collision point nozzle design is used, then the device structure is simple, but it cannot atomize more than two liquids simultaneously and requires relatively high volume of liquid per dose
Solution Approach 1:
The nozzle is divided into multiple independent ejection channels (at least four channels) that converge to form multiple collision points. Each channel can independently atomize a different liquid, enabling simultaneous atomization of multiple liquids while maintaining a relatively simple overall structure.
Solution Approach 2:
The invention transitions from a single collision point (0D/1D concept) to multiple collision points distributed in three-dimensional space. The ejection channels are arranged at different angles and positions, creating a spatial distribution of collision points that enables multi-liquid atomization without proportionally increasing device volume.
2Adaptability or versatility
If multiple ejection channels are added to atomize more liquids, then the number of liquids atomized increases, but the device space requirements increase
Solution Approach 1:
Multiple ejection channels are merged into a compact nozzle body with shared structural components. The channels converge toward a common region where multiple collision points occur, allowing the nozzle to atomize multiple liquids (increasing versatility) while maintaining a compact overall volume through efficient spatial arrangement.
Solution Approach 2:
The ejection channels are arranged in a nested or concentric configuration within the nozzle body, with channels positioned at different radial distances and angles. This nesting approach allows multiple channels to occupy overlapping or adjacent spatial regions, increasing the number of liquids that can be atomized without proportionally increasing the nozzle's external dimensions.
3Quantity of substance
If high volume of liquid is aerosolized per dose, then high dose delivery is achieved, but the device requires more space
Solution Approach 1:
The liquid delivery system is segmented into multiple ejection channels that deliver liquid in parallel. This segmentation allows the total liquid volume per dose to be distributed across multiple smaller channels, achieving high dose delivery (quantity of substance) while maintaining a compact nozzle structure (device volume) through efficient use of space.
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
The nozzle design efficiently nebulizes multiple liquids, reducing the risk of large droplet formation and allowing for precise control of liquid mixing, suitable for delivering high doses of medically active ingredients with minimal space requirements.
Implementation Method 1
at least two collision points, X1 and X2, are provided at which at least two of the ejection trajectories intersect with one another
Data Source
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AI summary
The invention relates to the field of nozzles for inhalation devices for liquids. In particular, the invention relates to a nebulizing nozzle for an inhalation device, suitable for the generation of an aerosol of a medically active liquid, and to inhalation devices comprising such nozzle. Such nozzle (1) for an inhalation device for medically active liquids (F, F1, F2) for generation of an aerosol has a main axis (Z) and at least three ejection channels (1A, 1B, 1C, 1D) adapted to eject liquid (F, F1, F2) along respective ejection trajectories, wherein at least two collision points (X1, X2) are provided at which at least two of said ejection trajectories intersect with one another, and/or wherein further, all ejection angles (A, A1, A2) at which the individual trajectories leave the nozzle (1) are identical, or at least one of said ejection angles (A, A1, A2) differs from the other ejection angles (A, A1, A2).