Open AccessAdjustable suspension system for lower limb prosthesis
Author(s) -
Alina Spanu,
Daniel Besnea,
Edgar Moraru,
Mazen Elfarra,
Oana Chiriac
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1235/1/012058
Subject(s) - silicone rubber , suspension (topology) , mechatronics , elasticity (physics) , compensation (psychology) , biomedical engineering , mechanical engineering , computer science , engineering , materials science , control engineering , composite material , mathematics , psychology , homotopy , psychoanalysis , pure mathematics
The contact between the stump and the lower limb prosthesis has to be provided by its suspension system. The paper presents a solution for an adjustable suspension designed as an inflated cell network. Each cell is supplied with controlled pressure and consequently, a contact force with the skin is developed. By varying the pressure value inside the cell, we may provide variable force, so the compensation for the volume change of the stump could be accomplished. The material the cells are made of should have special properties, the elasticity being the most important. Moreover, the goal of the paper was to approve the opportunity to use the silicone rubber Zhermack for the cell material and a mechatronic system has been realised as experimental set-up.