Category: Biofeedback

Tetraplegic Wheelchair

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The Tetraplegics Wheelchair is a wheelchair that aims to provide low-cost and self-reliant locomotory assistance for people with movement disabilities. The wheelchair detects muscle movements through biosensors and the signals instruct it to move in a particular direction. Muscle movements generate muscle potential, which is detected by bio-compatible surface sensors. These signals are then sent to the microcontroller, which instructs the wheelchair to move.

While tetraplegic people cannot move their upper and lower limbs, they can move their shoulders. Each muscle potential develops a specific pattern on electromyography (EMG). Based on the pattern, the muscle and moves in the respective direction and the wheelchair moves forward or backward. Similarly, the right and left shoulders move the wheelchair left and right. The wheelchair is also fitted with ultrasound sensors that detect obstacles and stops 1 meter ahead of an obstacle and has vision sensors that will detect people behind. The wheelchair can also be remotely controlled. The designers have developed an Android application, which can control the wheelchair through Bluetooth, with the prototype having a range of 100 meters.


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Tetraplegic Wheelchair

Made By:

PSG Institutions
Organization Type: 
PSG & Sons’ Charities was established in 1926 with the purpose of augmenting the Sarvajana school which was started when a family member was denied admission in British run school. Four brothers PSG Venkataswamy Naidu, PSG Rangaswamy Naidu, PSG Ganga Naidu and PSG Narayanaswamy Naidu voluntarily divided their ancestral properties into five parts, reserving the one fifth amounting to ? 2.01 lakhs to create the charity.   The institutions run by the charity include:
  • PSG Sarvajana High School
  • PSG Industrial Institute
  • PSG Polytechnic College
  • PSG Middle School
  • PSG Primary School
  • PSG College of Arts and Science
  • PSG College of Technology
  • PSG Rural Health Center
  • PSG Metallurgy and Foundry Division
  • PSG Institute of Medical Sciences & Research
  • PSG Industrial Training Center
  • PSG Hospitals
  • PSG Centre for Sponsored Research and Consultancy
  • PSG Centre for Non-formal & Continuing Education
  • PSG Textile Research and Training Center
  • PSG Urban Health Center
  • PSG Institute of Management
  • PSG College of Nursing
  • PSG Science and Technology Industrial Park
  • PSG TIFAC Core
  • PSG College of Physiotherapy
  • PSG College of Pharmacy
  • PSG Center for Advertising & Communication
  • PSG Children's School
  • PSG Offshore Health Management Services
  • PSG High School
  • PSG Institute of Advanced Studies
  • PSG Public Schools
  • PSG Institute of Technology and Applied Research
They came up with the Tetraplegic Wheelchair, a wheelchair operated by muscle movements.