A wheelchair is a portable device used to assist individuals who have difficulty walking or cannot walk. It features a seat with back support, armrests, and footrests, along with two large rear wheels and two smaller front wheels. The rear wheels are used for moving the wheelchair forward or backward, while the front wheels aid in steering and maneuvering. Most wheelchairs are manually operated, allowing a caregiver or the user to push the chair using the rear wheels, or the user can turn hand rims on the wheels to move themselves. Many models include adjustable features such as removable armrests, swing-away footrests, and reclining backs for added comfort and adaptability. Safety features like brakes on the rear wheels and anti-tip bars help ensure stability and prevent accidents. In emergencies, wheelchairs provide a crucial means of mobility, allowing for safe and comfortable transport of patients to various locations, whether within a medical facility or at the scene of an emergency.
