Wheelchairs are one of the most important mobility assistive devices in modern society. They are widely used to help people with limited lower limb movement regain the ability to move independently.

Firstly, wheelchairs are commonly applied in medical and rehabilitation fields. For patients with leg injuries, surgeries or physical disabilities, wheelchairs can reduce physical pressure and avoid secondary damage during recovery. Medical staff also use wheelchairs to transfer patients safely in hospitals, improving medical efficiency.

Secondly, wheelchairs serve daily life support. Many elderly people and disabled individuals rely on wheelchairs to travel indoors and outdoors. With the help of wheelchairs, they can go shopping, take transportation and participate in social activities, which greatly improves their quality of life.

In addition, wheelchairs play an important role in public welfare and emergency scenarios. In public places such as stations, malls and scenic spots, barrier-free wheelchairs provide convenient services for people in need. During emergencies, wheelchairs can also help rescue people with mobility difficulties quickly.

In short, wheelchairs are practical and essential assistive tools. They not only bring convenience to daily movement, but also help vulnerable groups live more independent and confident lives.