Tongue-control device for independence

July 8, 2026 Innovation Valli Sarvani

Innovation often begins with a personal challenge, and this biomedical breakthrough is a clear example.

A student at Osmania University has developed a low-cost assistive device that helps paralysed individuals control electronic systems using tongue movements.

The invention was created by M. Balu, a biomedical engineering student, after his father suffered a brain stroke.

That experience highlighted the daily struggles faced by people with severe mobility loss. Consequently, he focused on building a solution that restores basic digital independence.

The device, called a tongue-based capacitive touch control system, is embedded inside a customised dental aligner.

It uses small sensors that detect tongue gestures and convert them into digital commands. These signals are then transmitted wirelessly through Bluetooth Low Energy technology.

As a result, users can operate smartphones, laptops, and even wheelchairs without using their hands.

The system is designed to support individuals with paralysis or limb loss, especially those who still retain tongue mobility.

Importantly, the hardware is built using a compact microcontroller and medical-grade materials.

The electronics are sealed safely inside the oral device, ensuring comfort and hygiene during use. Therefore, it functions as both a wearable and a communication interface.

Currently, the prototype supports basic actions like scrolling on mobile screens. However, future versions aim to enable more advanced functions such as typing, cursor control, smart home management, and mobility assistance.

Moreover, the design focuses on affordability. The estimated production cost is around ₹5,000 to ₹7,000, making it significantly cheaper than many existing assistive technologies. This could improve access for patients in lower-income groups.

The innovation is still in the prototype stage and awaits clinical testing. Nevertheless, plans are underway for patent filing and software development support to expand its capabilities.

This device highlights how biomedical engineering can merge empathy with technology.

It transforms a personal family crisis into a scalable solution that may improve independence for many people living with paralysis.

Image from Pxhere (Free for commercial use / CC0 Public Domain)

Image Published on March 12, 2017