Here’s another medical advancement we are happy to report: the Tongue Drive System now enables people to move an automatic wheelchair by moving their tongues.
Made for people with high-level spinal cord injuries, the Tongue Drive includes a dental retainer with sensors to detect tongue movement. “By moving the sensors inside the mouth, we have created a Tongue Drive System with increased mechanical stability and comfort that is nearly unnoticeable,” says Maysam Ghovanloo of Georgia Institute of Technology.
The signals from sensors are transmitted to an iPod or iPhone wirelessly, which then acts as a joystick in a powered wheelchair. Trials for the Tongue Drive System involved 11 patients, who were successful in understanding and using the system.
How the Tongue Drive System Works
The Tongue Drive System operates by utilizing a magnetic tracer attached to the tongue. This tracer interacts with sensors embedded in a dental retainer, which detect the tongue’s position and movement. These movements are then translated into commands that control the wheelchair. The system’s design ensures that it is both discreet and comfortable, making it a viable long-term solution for users.
The wireless transmission of signals to an iPod or iPhone is a key feature, as it allows for seamless integration with existing technology. The mobile device acts as an intermediary, processing the signals and converting them into joystick movements. This innovative approach not only simplifies the control mechanism but also makes the system more accessible to users who are already familiar with smartphones.
Benefits and Future Applications
The Tongue Drive System offers numerous benefits beyond just mobility. For individuals with severe disabilities, gaining control over their environment can significantly improve their quality of life. The system can be adapted to control other devices, such as computers, smart home systems, and even communication aids, providing a comprehensive solution for independence.
Moreover, the system’s adaptability means it can be customized to meet the specific needs of each user. For instance, different tongue movements can be programmed to perform various functions, allowing for a highly personalized experience. This level of customization is crucial for users with unique requirements, ensuring that the system is as effective as possible.
The potential applications of the Tongue Drive System extend beyond wheelchairs. Researchers are exploring its use in controlling prosthetic limbs, which could revolutionize the field of prosthetics. By providing a more intuitive and natural control mechanism, the system could make prosthetic limbs more functional and easier to use.
This groundbreaking mobility system for paralyzed patients was presented days ago at the IEEE International Solid-State Circuits Conference. The system is supported by the National Institutes of Health and Christopher and Dana Reeve Foundation, to name a few.
The Tongue Drive System represents a significant advancement in assistive technology, offering new hope to individuals with severe disabilities. As research and development continue, we can expect to see even more innovative applications of this technology, further enhancing the lives of those who need it most.
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