Arm prosthesis is a device used to replace a missing limb. The word is pronounced /ɑːm ˈprɒsθəsɪs/ where the stress is on the first syllable. It is spelled with an "s" in prosthesis, not a "c" because the word comes from the Greek word "prosthesis" which means "addition" or "attachment." Despite the complexity of its spelling, arm prosthesis is a crucial tool to help amputees regain their independence and enhance their quality of life.
An arm prosthesis, also known as a prosthetic arm or artificial arm, is a custom-made device designed to replace a missing or non-functioning arm. It is a technologically advanced and intricately engineered limb designed to mimic the functions and appearance of a natural arm. Arm prostheses are essential for individuals who have undergone amputation, were born without an arm, or have suffered from a congenital limb difference.
The arm prosthesis is typically created with a combination of lightweight materials, such as carbon fiber, titanium, and plastic, which allow for optimal weight distribution and efficient movement. It consists of multiple components, including a socket that fits onto the residual limb, a joint system that enables flexibility and range of motion, and a terminal device that can mimic the hand and its functionalities.
Advanced arm prostheses also incorporate cutting-edge technology, such as myoelectric control systems. These systems use small sensors placed on the skin to detect electrical signals from the residual muscles. These signals are then processed and translated into specific movements of the prosthetic arm, providing a high degree of dexterity and precision.
Arm prostheses play a pivotal role in restoring functionality, independence, and psychological well-being for individuals with upper limb loss. By mimicking the movements and appearance of a natural arm, they enable individuals to perform daily tasks, such as grasping objects, writing, and even participating in sports and recreational activities. The development and continuous improvement of arm prostheses have significantly enhanced the quality of life for countless individuals worldwide.
The word "prosthesis" is derived from the Ancient Greek term "prosthesis", which means "addition" or "attachment". It originates from the verb "prostithenai", meaning "to add" or "to place before".
The word "arm" comes from the Old English word "earm", with similar origins in other Germanic languages. It can be traced back to the Proto-Indo-European root "h₂erǵ", meaning "forelimb" or "branch", which also gave rise to words like "branch" and "arbor" in English.
Therefore, the term "arm prosthesis" refers to an artificial device that is added or attached to replace a missing or non-functional arm.