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In China, the old is used to buying fresh vegetables for their family in market every day,but for those who are in crutches it could be burdensome.And also, it is likely to be dangerous for the elder people with one hand taking weight while another leaning on a crutch.“Double crutch” is a product specialized for the elder people. Pulling the handle, the crutch will become a simple cart.People can control the wheels in andout by pressing and letting go of the handle. “Double crutch”makes the elderly’s shopping and travel easier and safer.
Dalian Minzu University
Dalian Nationalities University