Portable OPEP Oscillator with Magnetic Visual Feedback

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Solution Overview

Problem

Existing portable oscillators of positive expiratory pressure (OPEP) devices lack visual incentives, which can reduce the effectiveness of airway clearance treatments.

Innovation Solution

A portable OPEP device with an oscillation element and an indicator element, where the oscillation element is driven by expiratory airflow and uses magnetic repulsion to return to its original position, and the indicator element provides visual feedback of the oscillating state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a prior-art OPEP device uses a rocker assembly with magnetic field to provide expiratory resistance, then the device can achieve positive expiratory pressure therapy, but the device lacks visual incentive feedback to the user

Engineering Contradiction:

ImproveOPEP therapy effectivenessVSAvoidvisual feedback to user

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent introduces an indicator element that provides visual feedback to the user about the oscillation element's state. The indicator element includes a first magnetic element that interacts with a second magnetic element on the oscillation element, creating a visible indication system that communicates device status without interfering with the therapeutic function.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The indicator element is designed as a flexible component that can visually respond to the oscillation element's position. This flexible indicator provides real-time visual feedback while maintaining the compact portable structure of the device.

Inventive Principle:

Principle #30Flexible shells and thin films

2Device complexity

If the oscillation element uses gravity-dependent return mechanism, then the device structure can be simplified, but the device performance deteriorates when user is lying in hospital bed

Engineering Contradiction:

Improvereturn mechanism structureVSAvoidusability in different positions

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent employs magnetic repulsion force between the first magnetic element on the oscillation element and the second magnetic element on the shell to counteract gravity's effect. This magnetic counterweight mechanism provides a consistent return force regardless of the device's orientation, enabling the user to effectively use the device whether standing or lying in a hospital bed.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The patent replaces a gravity-dependent mechanical return mechanism with a magnetic field-based system. The magnetic repulsion provides a consistent restoring force that is independent of gravitational direction, substituting the gravity-based mechanism with a field-based mechanism that works in all orientations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If magnetic elements are exposed to air and humidity, then the device structure can be simplified, but the product reliability and longevity deteriorate

Engineering Contradiction:

Improvemagnetic element packagingVSAvoidproduct longevity

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent uses a protective packaging structure that encapsulates the magnetic elements, isolating them from air and humidity. This thin-film or shell-based protection maintains the compact portable design while significantly improving the reliability and longevity of the magnetic components by preventing corrosion and degradation.

Inventive Principle:

Principle #30Flexible shells and thin films

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 enhances the success of OPEP therapy by providing a visual incentive, is less affected by gravity, and has improved product protection and longevity due to magnetic element packaging.

Implementation Method 1

a distance between the first magnetic element and the second magnetic element is simultaneously shortened to quickly respond to a repulsive force which is generated between the same poles

Methodology Applied

Scientific EffectMagnetic repulsion: Magnetism

Data Source

PatentUS12311103B2Portable oscillator of positive expiratory pressure having capability for oscillating indication

Publication Date: 2025.05.27 BESMED HEALTH BUSINESS CORP

AI summary

A portable oscillator of positive expiratory pressure having capability for oscillating indication, the portable oscillator of positive expiratory pressure comprises a shell, an oscillation element and an indicator element; the shell has a pressurized cavity, the oscillation element has a valve to close the pressurized cavity, the indicator element is used to respond an oscillating state of the oscillation element and a static state of the oscillation element; wherein the shell and the oscillation element are respectively provided with a first magnetic element and a second magnetic element; when an expiratory airflow through the pressurized cavity drives the oscillation element to rotate, the valve will separate from the pressurized cavity to release the pressure, a distance between the first magnetic element and the second magnetic element is simultaneously shortened to quickly respond to a repulsive force which is generated between the same poles, and therefore the oscillation element can be returned to an original position; when the valve recloses the pressurized cavity, the pressurized cavity will produce an exhalation resistance.