Voice-Activated Lightweight Reacher to Assist with Upper Extremity Movement Limitations: A Case Study

Area of Science:

• Assistive Robotics
• Rehabilitation Engineering
• Human-Computer Interaction

Background:

• Assistive technologies like wheelchair robotics and exoskeletons offer aid but often face usability and comfort issues.
• Spinal cord injuries (SCI) significantly impact daily living, particularly for individuals with limited arm and hand function.
• Existing assistive devices can be heavy, cumbersome, or uncomfortable, limiting their practical application.

Purpose of the Study:

• To design and develop a functional, user-friendly, and voice-activated reacher for individuals with SCI.
• To address the daily reach and grasp challenges faced by people with limited upper limb mobility, specifically those with C5-6 SCI.
• To create a lightweight and mobile assistive device that can be readily deployed for use.

Main Methods:

• Development of the Smart Assistive Reacher Arm (SARA) system, incorporating voice activation.
• Conducting a comparison study involving healthy participants and an individual with SCI.
• Evaluating the usability and effectiveness of SARA in performing simple reach and grasp tasks.

Main Results:

• The SARA system demonstrated that a person with SCI can independently perform reach and grasp tasks.
• The voice-activated interface proved intuitive, allowing for easy use and high proficiency.
• The lightweight and mobile design of SARA enhances its practicality for daily use.

Conclusions:

• The SARA system is a beneficial assistive tool for individuals with SCI, enhancing independence in daily activities.
• Voice-controlled assistive robotics, like SARA, show significant potential in overcoming functional limitations.
• The intuitive design suggests broad applicability and ease of adoption for the target population.