Title:On Design and Implementation of an Artificial Lower Limb
VOLUME: 8 ISSUE: 2
Author(s):Susmita Das, Sudipta Paul, Sanjeev Kumar Ojha, Biswarup Neogi, Alexey Nazarov, Joydev Ghosh* and Sudeshna Ghosh
Affiliation:Narula Institute of Technology, Kolkata, Techno India-Batanagar, Kolkata, Moscow Institute of Physics and Technology, Moscow, JIS College of Engg. Kolkata, National Research University Higher School of Economics (HSE), Moscow, National Research Tomsk Polytechnic University (TPU), Tomsk, Kazinazrul University, W.B, Asansol
Keywords:Artificial limb design, EMG, flex-sensor, limb movement, lower extremity, paralytic patient.
Abstract:Background & Objective: The presented design attempt of building an advanced prosthetic
lower limb has a vast requirement in these days to connect paralytic patients and elderly people with
the external environment for a better lifestyle. The Recordings of Electromyography (EMG) patterns
and other data analysis of the muscle signals has lightened the path of technology to a wide range of
studies and experiments in the field of prosthesis of certain moveable body parts using the acquired
EMG signal of muscles of lower limb. An effort has been made to acquire the EMG signal and study
the signals with the incorporation of sufficient technology to build an artificial lower limb with the
help of Flex-sensor and ‘Arduino Uno’ programming. The main aspect about the hardware circuitry of
this practical work is its ease of use and applicability. The Bio-electrodes are attached on the specified
location to acquire the muscle signals and also Laboratory Virtual Instrument Engineering Workbench
(LabVIEW) to acquire the signals. In addition, the movements of certain joints of the lower limb can
be replicated controlling the movement of a servo-motor for the implementation of the design of the
artificial lower limb.
Conclusion: The different output parameter changes can be measured according to the relaxation and
the contraction of the Flex-sensor attached to the knee, and the ankle joints. The Servo-motors can further
be utilized in the construction of the artificial lower leg to be moved externally without any voluntary
motion of the subject. The measurement of dispersion has been introduced in the mathematical
analysis.
