Home ventilator

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Solution Overview

Problem

Home ventilators face issues with accessory contamination during storage and inadequate air filtration, leading to health risks and inconvenience due to bacterial and viral accumulation, especially in home settings.

Innovation Solution

A home ventilator equipped with a storage device, air purification system, and display control component, featuring a storage chamber, air purification device, and ozone generator, which ensures clean storage and filtration of accessories and purifies air, reducing the risk of contamination and improving air quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If accessories/components are stored in the home ventilator after use, then storage convenience is improved, but contamination by bacteria and viruses occurs during storage

Engineering Contradiction:
Improvestorage convenienceVSAvoidbacterial and viral contamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the storage function from the main ventilator body by providing a separate storage chamber that is communicably connected but functionally distinct. This allows accessories to be stored in a dedicated space that can be independently disinfected and maintained, preventing cross-contamination between the storage area and the patient interface components.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The storage chamber acts as an intermediary space between the external environment and the main ventilator system. By providing this intermediate storage zone with separate access and disinfection capabilities, the patent creates a buffer that protects the main system from contamination while maintaining storage functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If a single layer of primary/medium-efficiency filter cotton is used for air source filtration, then device complexity is reduced, but dust particles smaller than 5 μm including bacteria and viruses can enter the ventilator

Engineering Contradiction:
Improvefiltration structure complexityVSAvoiddust particles, bacteria, and viruses
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the air filtration function into multiple independent filtering stages. Instead of relying on a single filter layer, the system divides filtration into primary filtration (larger particles) and secondary filtration (smaller particles including bacteria and viruses), with each stage handling specific particle size ranges to achieve comprehensive protection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to the filtration system by introducing a second filtration layer that operates in series with the first. This multi-layer approach transforms the filtration process from a single-plane operation to a multi-stage sequential process, enabling the system to capture particles across different size ranges that a single filter could not address.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If air filter cotton is replaced every half a month to a month, then filtration effectiveness is maintained, but user convenience deteriorates due to uncertain replacement timing and frequent maintenance

Engineering Contradiction:
Improvefiltration effectivenessVSAvoidmaintenance convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements preliminary action by providing pre-installed spare filter layers within the device. Instead of requiring users to externally source and install replacement filters, the system comes equipped with backup filtration layers that can be quickly swapped in when the primary filters become saturated, eliminating the need for users to time and coordinate replacement schedules.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent enables self-service maintenance through a simplified filter replacement mechanism. The multi-layer filter design allows users to easily access and replace spent filters without requiring technical expertise or special tools, transforming a complex maintenance task into a simple user-friendly operation that can be performed independently.

Inventive Principle:
Principle #25Self-service

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 ventilator maintains clean storage conditions for accessories and provides high-quality, filtered air, reducing the risk of infection and extending the service life of air filtration components, while also purifying indoor air, enhancing user safety and convenience.

Implementation Method 1

an air purification system, and a display control component, where the storage device is provided with a storage chamber, exhaust ports, and a storage opening capable of being opened or closed, and the storage chamber communicates with an air supply device; the air purification system is provided with a fan, an air purification device, and air outlets; and external air of the body is introduced from air inlets, an airflow channel in an air outflow direction of the air purification device in the body is a clean air region

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

A home ventilator equipped with a storage device, air purification system, and display control component, featuring a storage chamber, air purification device, and ozone generator, which ensures clean storage and filtration of accessories and purifies air, reducing the risk of contamination and improving air quality.

Methodology Applied
Scientific EffectOzone generation: Ozone

Data Source

PatentEP4717293A1Home ventilator
Publication Date: 2026.04.01 HUNAN TAIYANGLONG MEDICAL TECH
  • EP4717293A1 patent drawingFigure 1
  • EP4717293A1 patent drawingFigure 2
  • EP4717293A1 patent drawingFigure 3

AI summary

The present disclosure discloses a home ventilator. The home ventilator includes a body with a respiratory function assembly, a storage device, an air purification system, and a display control component, where the storage device is provided with a storage chamber, exhaust ports, and a storage opening capable of being opened or closed, and the storage chamber communicates with an air supply device; the air purification system is provided with a fan, an air purification device, and air outlets; and external air of the body is introduced from air inlets, an airflow channel in an air outflow direction of the air purification device in the body is a clean air region, and the respiratory function assembly and the air supply device respectively draw in clean air.