IR Therapeutic Device

This project involves the research and development of a wearable photobiomodulation (pTBM) device designed to deliver precise, light-based neuromodulation in a controlled and repeatable manner. The device is engineered to support non-invasive optical stimulation across multiple target regions, combining biomedical insight with embedded-systems engineering.

The goal was to design a platform that bridges hardware precision, biological safety, and user-friendly operation — allowing researchers and clinicians to explore targeted light delivery with consistent reproducibility and data integrity.




Project Overview

The system centers around a microcontroller-driven LED array, managed through custom firmware optimized for precise timing and current control. Each channel can be independently configured for frequency, pulse width, and intensity parameters defined by protocol presets.
A modular hardware layout allows the light modules to be positioned at multiple scalp regions or body sites, while maintaining thermal efficiency and user comfort. The device was designed with flexibility in mind — suitable for both research prototypes and future clinical-grade refinement.



Technical Highlights

This project utilized a small footprint and a constant current LED driver to ensure a reliable dose delivery, To keep the details within the NDA, I can state that a Pic18f47Q10 was programmed using MPLAB X IDE and compiled with XC8 compiler. The firmware was written in C and optimized for low power consumption.



  • - High-accuracy LED drivers ensure stable current delivery and spectral consistency across all channels.
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  • - Embedded firmware provides pulse-frequency modulation and timing synchronization to support programmable therapeutic protocols.
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  • - Integrated safety controls continuously monitor power levels and duty cycles to prevent overheating or overexposure.
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  • - Compact control electronics and optimized PCB design reduce noise and interference, maintaining precise output regulation..
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  • - Modular interface connectors simplify assembly and enable expansion for different LED configurations or study requirements.
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Design Philosophy

The device was developed through a systems-level engineering approach, balancing electrical, optical, and ergonomic considerations. Every subsystem — from LED driver calibration to enclosure geometry — was designed to maximize reliability and repeatability while remaining comfortable for extended wear.

User interaction is kept minimal and intuitive. The design prioritizes plug-and-use operation, with the option for firmware-based configuration via a connected software interface. This hybrid approach enables flexible control without exposing unnecessary complexity to the end user.

Outcomes

Patent Pending — The device has been successfully tested and is ready for commercialization. It delivers the desired therapeautic effect without overheating the tissue. Further studies are being conducted to find the appropriate dose duration to obtain proper mitochondrial response.