Abstract
The prosthetics is done in order to help the persons with various
degrees of amputation to regain their normal functioning. The
prosthetics
used for rehabilitation (regaining of body functionality) should be
comfortable for the patient and should be durable. After lower limb
prosthesis, the most important goal in the rehabilitation process of the
amputee is the regaining of walking. The walking ability is very
essential
for proper functioning. There are two different types of foot available
that are used based on function. These are the dynamic and non dynamic
response foot (e.g. solid ankle cushion heel). The non dynamic foot is
basic for appearance and the functions such as standing and walking,
while the dynamic can be used for more intense activities like running.
Current prosthetic foot designs do not exactly match the characteristics
of normal human foot. Human foot is a multi-functional device that
performs various activities, but the functions of prosthetic feet are
limited
to only few. A person’s prosthesis should be designed and assembled
according to the patient’s appearance and functional needs. Over the
years
there have been significant advancements in prosthetics. New plastics
and other materials, such as carbon fiber, have made artificial limbs
stronger and lighter, reducing the amount of extra energy necessary to
operate the limb. This is very important for trans-femoral amputees.
Additional materials have made artificial limbs to look much like real
limbs, which is important to trans-radial and trans-humeral amputees
because they are more likely to have the artificial limb exposed. The
foot provides shock absorption and stability during stance by providing
contact to the ground. Additionally it influences the gait biomechanics
by its shape and stiffness. The basis of this project is to provide
standing
and walking functions as well as to make the appearance attractive. The
available below knee prosthesis device employs silicon material for
the foot which is imported and expensive; hence there is a need to use a
cost effective and easily available material (wood). The main problem
associated with current feet is durability and endurance. The different
characteristics on the basis of which the prosthetics are used include:
cosmetics, cost, and ease of use, size availability, weight, rotation,
and energy absorption and ground compliance. The objective of this
project is
to design a prosthetic feet model that can function as a normal human
foot, whose characteristics match the most with the normal human foot
and to evaluate the functioning of prosthetics in rehabilitation. The
designed prosthetic feet model can then be used to evaluate the
durability,
endurance and comfort level provided by the designed SACH prosthetic
foot. On the basis of this model further studies can be conducted to
evaluate the effect of prosthetic feet in the rehabilitation of patients
with lower limb prosthesis.
Effect of Biomaterial Prosthetics on the Rehabilitation of Lower Limb Amputees by Qaysar Mohi Ud Din in BJSTR
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