Design of a new foot stirrup model for funcional ortopaedic footwear

Abstract

The main aim of this work is present the development and early results of a new solution for an orthopedic footwear stirrup. For this purpose, conventional solutions are briefly characterized in order to identify the main causes for their frequent failure. This task also allows for the identification of the list the principal criteria to be considered in the design process of the new geometric configuration, namely, aspects related to functionality, flexibility and durability. In addition, a biomechanical analysis is performed with the intent to typify the main variables associated with the human gait, such as the developed loads. Then, computational simulations, based on the finite element approach, are performed to test the several options considered that permits the quantification of the level of stresses developed and, consequently, the selection of the best solution. The obtained results showed that the new geometric solution is feasible with a light foot stirrup. The performance of the stirrup model proposed is analysed in light of the assumptions and procedure adopted in this work, being the early results quite satisfactory in terms of comfort and durability.