Further Development of a Robotic-Assisted Transfer Device

The study focuses on the development of a Robotic-Assisted Transfer Device (RATD) to aid in transfers, such as from a wheelchair to a bed, reducing injury risk for both caregivers and users. Current mechanical transfer devices have limitations, including transportability and usability in crowded spaces. The RATD has 5 degrees of freedom allowing it to rotate, elevate, extend, fold up, and move. Design adjustments were made, including moving the RATD to a Permobil F5 EPW, designing a new attachment mechanism and track, and adding a brake on the shoulder joint motor. Software changes were implemented to increase safety including safety zones and error checking using if/then statements to check for unusual spikes in sensor values. Focus groups provided feedback, with participants highlighting the importance of reliability, durability, and stability.

• 1
  Sixty-three percent of people with disabilities and 83% of caregivers surveyed indicated they would use the device.
• 2
  Participants with disabilities were concerned about the size of the device, limiting its use in public bathrooms. They also emphasized the importance of independent operation.
• 3
  Caregivers focused on the device's safety, potential problems with the design, and the impact of the extra weight on the wheelchair's functionality.