Vibrating Mesh Aerosolizer for Heat-Free Deep Lung Delivery
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Solution Overview
Problem
Existing vaporizers produce harmful byproducts such as formaldehyde and other carcinogenic chemicals when heating propylene glycol, and they fail to effectively deliver active ingredients past the body's filtration mechanisms, leading to inefficient inhalation delivery.
Innovation Solution
A vaporizer using a vibrating mesh assembly to aerosolize liquid without heating, ensuring consistent aerosol production and deep lung penetration by utilizing a piezoelectric disk to vibrate a mesh, which is magnetically coupled to a handheld base assembly and includes a bladder and wick system for liquid delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If heating is used to vaporize liquid in conventional vaporizers, then aerosol production is achieved, but harmful byproducts such as formaldehyde and carcinogenic chemicals are generated
Solution Approach 1:
The patent replaces the thermal field (heating element) with a mechanical field (vibrating mesh assembly). The mesh assembly vibrates at high frequency to atomize liquid directly into aerosol particles without requiring thermal energy, thereby eliminating the formation of thermal decomposition byproducts like formaldehyde and carcinogenic chemicals.
Solution Approach 2:
The patent changes the fundamental operating parameter from temperature (thermal vaporization) to vibration frequency (mechanical atomization). By operating the mesh assembly at ultrasonic frequencies (typically 20-100 kHz), the liquid is broken into fine droplets through mechanical stress rather than thermal energy, producing a cooler aerosol without harmful byproducts.
2Productivity
If conventional heating vaporizers are used, then aerosol is produced, but active ingredients are filtered by the body's filtration mechanisms reducing delivery efficiency
Solution Approach 1:
The patent changes the particle size parameter of the aerosol through mechanical atomization. The vibrating mesh produces ultrafine aerosol particles (typically 1-5 micrometers) that are small enough to bypass the body's filtration mechanisms in the upper respiratory tract and reach deep lung tissue, thereby improving delivery efficiency of active ingredients.
3Device complexity
If heating elements are used in vaporizers, then liquid can be vaporized, but the device becomes complex and requires power management systems
Solution Approach 1:
The patent eliminates the heating element, temperature control circuitry, and power management systems required by thermal vaporizers. Instead, it uses a piezoelectric or electromagnetic driver to vibrate the mesh assembly, which can be controlled with simpler electronics and requires less power, thereby reducing overall 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
Produces a carcinogen-free aerosol without toxic byproducts and enhances the delivery of active ingredients by avoiding the body's filtration process, ensuring consistent aerosolization and deep lung penetration.
Implementation Method 1
utilizing a piezoelectric disk to vibrate a mesh
Implementation Method 2
A vaporizer using a vibrating mesh assembly to aerosolize liquid without heating
Data Source
Figure 1A~1C
Figure 2A~2F
Figure 3A~3F
AI summary
An electronic device includes a mouthpiece, a bladder, and a mesh assembly having a mesh material and a piezoelectric material. The mesh material is in contact with a liquid of the bladder. The mouthpiece, the bladder, and the mesh assembly are located in-line along a longitudinal axis of the device between opposite longitudinal ends of the device, with the mesh assembly extending between and separating the mouthpiece and the bladder.