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Deformation of crutches, designed by using the principle of rotating suit.To stick on a rotating basis,a merged into another one
inside.By the original double cane into a single crutch.It is more
stable to use the double crutch and more convenient for
single turn To meet the needs of different people in different situations.
College of Science&Technology
College of Science&Technology Ningbo University
Luyi Xiao ， Jiaping Yao