The Dynamics of Non-upright Castor Wheels and Their Application for Pushing Wheelchairs from the Side

Many wheelchair users, such as the elderly or children with Profound Intellectual and Multiple Disabilities (PIMD), rely on a caregiver to push them. The lack of eye contact between the wheelchair user and caregiver hinders communication and can even be dangerous, for example for children with epilepsy. Conventional wheelchairs place the...