Venturi Atomizer With Spring-Driven Air Compression for Transdermal Delivery
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Solution Overview
Problem
Existing liquid atomization and ejection devices for transdermal delivery require replaceable gas cartridges or external air compressors, making them bulky and difficult to handle, and are not suitable for frequent use without frequent replacement.
Innovation Solution
A system utilizing a cylinder, piston, elastic member, and Venturi tube with an internal compressed air source, driven by an electric motor and gear mechanism, to atomize and eject liquid without external power sources, allowing for compact and portable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high pressure gas cartridge is used for atomization and ejection, then the liquid can be atomized and ejected effectively, but the gas cartridge is exhausted quickly and requires frequent replacement
Solution Approach 1:
The system uses an internal elastic member (spring) to generate compressed air for atomization, eliminating the need for external gas cartridges. The elastic member is repeatedly compressed and released to provide continuous atomization capability without requiring external replenishment or replacement of consumable components.
2Productivity
If an external air compressor or air pump is used for atomization, then the liquid can be atomized and ejected, but the device becomes large and difficult to move and transport
Solution Approach 1:
The elastic member is disposed inside the cylinder, with the piston moving within the cylinder. This nested arrangement allows all components to be compactly integrated into a single portable unit, eliminating the need for external air compressors or pumps while maintaining atomization capability.
3Productivity
If an external air compressor or air pump is used for atomization, then the liquid can be atomized and ejected, but the device becomes difficult to handle
Solution Approach 1:
The system combines the air generation mechanism (elastic member and cylinder) with the liquid atomization mechanism (Venturi tube) into a single integrated device. This merging of functions eliminates the need for separate external equipment, making the device easy to handle and operate as a unified portable unit.
4Productivity
If a replaceable gas cartridge is used, then the atomization function is provided, but a single-use/disposable power source is required
Solution Approach 1:
The elastic member serves as a reusable internal power source that can be repeatedly compressed and released. This eliminates the need for single-use gas cartridges or disposable power sources, reducing device complexity by removing the replacement mechanism while maintaining continuous atomization capability.
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
Enables efficient, repeated atomization and ejection of liquids, including high molecular weight substances, with fine droplets suitable for shallow transdermal delivery, without the need for disposable power sources or external compressors, facilitating easy handling and mobility.
Implementation Method 1
by instantly releasing the elastic energy stored in the elastic member, the piston is pushed back to its original position in the cylinder and compresses the air in the cylinder
Implementation Method 2
As the high-speed air passes through the Venturi tube, the pressure inside it drops, so a small amount of liquid in the tank is taken into the internal passage of the Venturi tube
Implementation Method 3
A small amount of liquid thus taken into is atomized inside the Venturi tube by the action of the high-speed air and ejected out of the Venturi tube together with the air
Data Source
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AI summary
The present invention relates to a system (10) for atomizing and ejecting a liquid (L) for a transdermal delivery. The system (10) comprises: a tank (100) for holding the liquid (L); a Venturi tube (200) comprising a longitudinal central axis (X1) and an internal passage (210) extending along the axis (X1), wherein the internal passage (210) is fluidly connected to the tank (100) via an orifice (220) defined in the Venturi tube (200), wherein the internal passage (210) comprises a converging section (230), a diverging section (240) and a throat section (250) located between the converging and diverging sections (230, 240); a cylinder (300) comprising a longitudinal central axis (X2), an end wall (310) orthogonal to the axis (X2), a circumferential wall (320) extending from the end wall (310) along the axis (X2) and an outlet hole (330) formed on the end wall (310), wherein the outlet hole (330) is fluidly connected to an inlet (232) of the converging section (230); a piston (400) arranged in the cylinder (300) so as to be displaceable in the cylinder (300) along the axis (X2), wherein the piston (400) defines an air intake space (V) in the cylinder (300) in cooperation therewith, wherein the air intake space (V) fluidly communicates with the inlet (232) of the converging section (230) via the outlet hole (330); a driving unit (500) for displacing the piston (400) in a direction in which a volume of the air intake space (V) increases; and an elastic member (600) that is deformed according to the displacement of the piston (400) and stores an elastic energy therein while the piston (400) is being displaced in the direction in which the volume of the air intake space (V) increases. The driving unit (500) comprises an elastic energy release mechanism (M) that releases the elastic energy stored in the elastic member (600), thereby causing the piston (400) to rush in a direction in which the volume of the air intake space (V) decreases.