Nicotine Mist Inhaler Using Ultrasonic Atomization to Avoid Burnt Liquid

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Solution Overview

Problem

Conventional electronic vaporising inhalers face issues such as liquid leakage, inconsistent dosing, and the risk of burning metal and inhaling burnt liquid due to high-temperature heating, along with undesirable smells and tastes.

Innovation Solution

An ultrasonic mist inhaler device with a capillary element and ultrasonic transducer generates mist through ultrasonic vibrations, using a driver device to optimize power usage and frequency for efficient atomization without heating, featuring a capillary element made of bamboo fibers for high absorption and antimicrobial properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high-temperature heating is used to vaporize liquid, then vaporization efficiency is improved, but risk of burning metal and inhaling burnt liquid increases

Engineering Contradiction:

Improvevaporization efficiencyVSAvoidburnt liquid inhalation risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the thermal heating system with an ultrasonic mechanical vibration system. The ultrasonic transducer generates high-frequency mechanical vibrations that directly atomize the liquid through cavitation and mechanical stress, eliminating the need for high-temperature heating elements and thereby preventing metal burning and burnt liquid inhalation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes ultrasonic-induced cavitation and mechanical atomization to transform liquid directly into fine aerosol droplets without passing through a vapor phase. This phase transition approach bypasses thermal vaporization entirely, achieving efficient liquid delivery without the harmful effects of high-temperature heating.

Inventive Principle:

Principle #36Phase transitions

2Manufacturing precision

If membrane saturation is increased to improve dosing consistency, then vapor delivery is improved, but liquid leakage increases

Engineering Contradiction:

Improvedosing consistencyVSAvoidliquid leakage

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The patent extracts the liquid from a saturated membrane system and delivers it directly through capillary channels to the ultrasonic atomization surface. This eliminates the intermediate storage step that causes oversaturation and leakage, providing controlled liquid delivery without the need for high membrane saturation.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs capillary channels with controlled porosity and surface tension properties to regulate liquid flow. The capillary structure provides precise liquid metering through capillary pressure control, ensuring consistent dosing without requiring excessive membrane saturation that would lead to leakage.

Inventive Principle:

Principle #31Porous materials

3Productivity

If conventional heating elements are used, then vaporization is achieved, but burnt smell and taste are produced

Engineering Contradiction:

Improvevaporization rateVSAvoidburnt smell

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces thermal energy input with mechanical ultrasonic energy input. The ultrasonic vibrations generate sufficient mechanical stress and cavitation to atomize liquid droplets directly, achieving rapid liquid transformation without thermal decomposition that causes burnt smells and tastes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 device prevents liquid leakage, ensures consistent dosing, eliminates burnt elements and smells, and provides a safer inhalation experience by producing a mist without heating, utilizing bamboo fibers for enhanced absorption and antimicrobial properties.

Implementation Method 1

an ultrasonic transducer configured to vibrate the atomisation surface to atomise a liquid carried by the capillary element to generate a mist

Methodology Applied

Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 2

a capillary element extending between the liquid chamber and the sonication chamber such that a first portion of the capillary element is within the liquid chamber and a second portion of the capillary element is within the sonication chamber

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS12434019B2Mist inhaler devices for delivering nicotine

Publication Date: 2025.10.07 SHAHEEN INNOVATIONS HLDG LTD

AI summary

A mist inhaler device (200) for generating a mist for inhalation by a user. The device includes a mist generator device (201) and a driver device (202). The driver device (202) is configured to drive the mist generator device (201) at an optimum frequency to maximise the efficiency of mist generation by the mist generator device (201).