Reusable Mask With High-Temperature Microtube

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional masks lose protective effectiveness over time and are not reusable, leading to high demand and shortage during epidemics like COVID-19, as they rely on disposable filters that need frequent replacement.

Innovation Solution

A high-temperature virus-killing mask with a resistance wire-heated microtube that reaches 200°C, killing viruses in inhaled air, and a reusable design with a detachable heating component for maintenance, powered by a power source and cooled by a copper tube for safe inhalation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional disposable masks are used, then virus filtration is achieved, but mask service life is limited and replacement frequency increases

Engineering Contradiction:
Improvevirus filtration effectivenessVSAvoidmask service life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent applies parameter changes by heating the mask filter to high temperature (above 56°C) to kill viruses, thereby extending the mask's service life. The mask can be reused multiple times after high-temperature disinfection, transforming the disposable nature of conventional masks into a reusable product while maintaining virus filtration effectiveness.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If high-temperature heating is applied to kill viruses, then virus elimination is achieved, but risk of heat damage to user increases

Engineering Contradiction:
Improvevirus presence in inhaled airVSAvoidheat damage risk to user
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent segments the heating function from the inhalation path by using a separate heating assembly that heats only the filter portion of the mask. The heating element is positioned to contact only the filter material, ensuring that high temperature is applied where needed for virus killing while the breathable portion remains at safe temperatures for user contact.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses the mask filter itself as an intermediary medium between the heating source and the user's breath. The filter absorbs and distributes the heat locally to kill viruses, while the exhaled breath path is designed to avoid direct contact with the high-temperature heating element, thus protecting the user from heat damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 mask effectively kills COVID-19 viruses in the air, extends the service life of masks, reduces mask consumption, and alleviates supply shortages by allowing multiple uses, while ensuring user safety through controlled heating and cooling.

Implementation Method 1

the resistance wire is energized to generate heat and the temperature in the high-temperature microtube rises up to about 200° C.

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

the high-temperature disinfected air is cooled to the normal temperature by the cooling tube

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS11641901B2High-temperature virus-killing mask
Publication Date: 2023.05.09 WUYI UNIV
  • US11641901B2 patent drawing
  • US11641901B2 patent drawing
  • US11641901B2 patent drawing

AI summary

Disclosed is a high-temperature virus-killing mask, including a sunhat, a heating component and a mask body. The heating component comprises a high-temperature microtube and a base, both arranged in the sunhat. The high-temperature microtube is provide with a resistance wire which may be energized to generate heat to enable the temperature in the high-temperature microtube to rise up to about 200° C.