Modular concept in a multi-functional above knee prosthesis

Conventional designs of above knee prostheses do not permit squatting and sitting cross-legged (SCL) on the floor. These postures are commonly adopted in India and other Afro-Asian countries. A new prosthesis design permitting these postures has been evolved. Further, a modular system has been prepared to fit into a number of different leg sizes. As a result of the new technology, the ankle remains fixed in normal walking and automatically flexes during squatting. Also for SCL, the thigh rotation is automatic. Thus, no hand manipulations are needed and the movements, both going down and arising are similar to normal movements.