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An increasing number of individuals show their concern of old people whose strength is shall and action is inconvenient . In this circumstances ,we designed a new crutch for them . It can support 2/3 strength of their waist from the crutch . And the pulley at the bottom can make it easy for walking ,and the light between two stem can irradiate at night . Father more , the crutch is also useful for the disabled people and those with backache .
Yue Peng Haijiao Wang Chongqing Zhu Wenlu Diao