1.Improve motor function and reduce complications: such as wheelchairs and walking aids can improve mobility and standing ability, and reduce the general functional decline, pressure sores and osteoporosis caused by long-term bed rest. 2.Improve self-care ability: such as personal hygiene aids and self-help devices can improve the self-care ability of clothing, food, housing, transportation, personal hygiene, etc. 3.Improve learning and communication ability: writing, reading, computer, telephone self-help tools can improve learning and communication ability. 4.Increase employment opportunities and reduce social burden: For example, paraplegics can fully perform certain jobs with the help of wheelchairs and other assistive devices. 5.Improve the psychological state and improve the quality of life: the improvement of motor function, self-care and communication ability can greatly enhance the courage and confidence of patients and improve the quality of life. 6.Shorten the hospitalization time and reduce the waste of human, financial and material resources.