1 research outputs found
Mechanical and Electronic Design of a Prototype Lower Limb Prosthesis for Transfemoral Amputation
Abstract—In South America, there are few companies that
are interested in the creation of prostheses and this, together
with the little technological progress, makes patients with
transfemoral amputation unable to perform their work. For this
reason, the objective of this research is to design a prototype of
a lower limb prosthesis for transfemoral amputation that helps
the patient's mobility recovery, preventing the wear of the
functional knee where an ergonomic design was considered for
the patient's comfort. On the other hand, muscular sensors
(EMG) were used to detect the intension of the movement, and
triaxial accelerometers that capture the movement disturbances
in the three axes X, Y, Z. The mechanical design was submitted
to the Von Mises stress analysis simulation, these tests were
performed in the SolidWorks software and the electronic circuit
design was simulated in the Proteus software, where a correct
interaction between the different sensors with the actuators of
the prosthesis was achieved, in this way, the VDI 2206
methodology was applied. In the results it was possible to
simulate the movements of the ankle by the implementation of
the Stewart mechanism, also the pieces of the structure were
subjected to an analysis where it is shown that efficiently
support 68 kg this is related to the height of 165 cm. Finally, it
was obtained that the suitable material is aluminum alloy 6061
T-6