Bionic hand and arm prostheses are electronically controlled prosthetic systems developed to support activities of daily living in people with limb loss at the arm or hand level. This article provides information on the general working principle and fitting process of bionic upper limb prostheses.
What is a bionic arm prosthesis?
Bionic arm prostheses are prostheses that contain motorized joints, sensors and control systems and are considered within the scope of myoelectric hand applications. These prostheses detect the electrical signals generated in the remaining muscle tissue (myoelectric signals) through surface electrodes and convert them into movements. The general working principle of this control method is covered under myoelectric arm prostheses. The aim is thereby to support functions such as grasping and holding.
Main components
Bionic upper limb prostheses usually consist of the following components:
- A socket made to fit the residual limb
- Electrodes and sensors that detect muscle signals
- Motorized joint and finger structures that produce movement
- A power source and control unit
The choice of components varies according to the user's amputation level, remaining muscle strength and daily living needs; different hand designs are compared under types and features of bionic hand prostheses.
Fitting process
Bionic prosthesis fitting is planned in line with the assessment, prescription and medical report of the relevant specialist physician. The process covers taking measurements, preparing the socket, adapting the components and rehabilitation training to help the user learn to use the prosthesis. The adaptation process can differ from person to person; regular check-ups and exercises contribute to effective use of the prosthesis.
This content is for informational purposes only; you should consult your physician for diagnosis and treatment.
