Electro-Optical PBM Irradiation Control for Safe Dose Delivery
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Solution Overview
Problem
Existing PBM devices require high power or intensity, are limited to specialized medical use, and necessitate user immobilization, preventing general public access and posing potential harmful effects.
Innovation Solution
An electro-optical device with a control circuit and driver circuit to emit pulsed electromagnetic radiation between 700-1400 nm, optimizing irradiation intensity and dose based on user proximity and interaction time, integrated into everyday objects for targeted PBM delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high power or high intensity radiation is used to deliver PBM effects, then the PBM effect is achieved, but the device becomes specialized and expensive, limiting access to the general public
Solution Approach 1:
The patent employs pulsed radiation delivery with duty cycles between 1-50% to achieve PBM effects while reducing average power consumption. The electro-optical element is switched on and off in cycles, delivering high peak intensity during active periods while maintaining low average intensity, thereby achieving therapeutic effects without requiring continuous high power operation, making the device more accessible and cost-effective
2Reliability
If high peak pulsing of radiation sources is employed to deliver required irradiation levels, then PBM dose is achieved, but energy consumption increases and overheating risks arise
Solution Approach 1:
The driver circuit implements pulsed operation with adjustable duty cycles (1-50%) to deliver PBM dose while controlling energy consumption. The electro-optical element operates in cycles of high peak intensity followed by rest periods, achieving the required cumulative dose through controlled periodic activation rather than continuous operation, thereby managing thermal load and energy usage
Solution Approach 2:
The system dynamically adjusts the duty cycle and pulse parameters based on the desired PBM dose and operational requirements. The control circuit can modulate the timing and intensity patterns adaptively, allowing optimization of energy consumption while maintaining effective dose delivery, making the system flexible in balancing performance and energy usage
3Illumination intensity
If continuous illumination is used to achieve typical lighting levels, then general illumination is provided, but irradiation intensity for PBM effect is insufficient
Solution Approach 1:
The electro-optical element operates in pulsed mode with high peak intensity during active periods to induce PBM effects, while the average intensity remains manageable. This periodic high-intensity delivery overcomes the insufficient irradiation problem of continuous low-intensity illumination, achieving both adequate lighting and effective PBM dose delivery through controlled pulsing
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
Provides cost-effective, energy-efficient, and safe PBM exposure through integrated systems like mobile devices, laptops, and monitors, avoiding overexposure and image flicker, while maintaining effective PBM effects.
Implementation Method 1
at least one (first) electro-optical element (EL1) arranged to emit electromagnetic radiation having a peak emission wavelength between 700-1400 nm
Data Source
AI summary
An electro-optical device (100) capable for providing a photobiomodulation effect in a user of the device (100), having at least one electro-optical element (EL1) arranged to emit electromagnetic radiation having a peak emission wavelength between 700-1400 nm, a control circuit (120, 130), and a driver circuit (110). The control circuit (120, 130) has a timer (135) configured to determine an on-period for the electromagnetic radiation emitted by the electro-optical element (EL1), and/or has a dose calculation unit configured to determine an accumulated dose of the electromagnetic radiation at the user. The control circuit (120, 130) is configured to instruct the driver circuit (110) to shut off the electro-optical element (EL1), if a predetermined maximum on-period is exceeded, and/or if a predetermined dose of the electromagnetic radiation at the user is exceeded.