الفهرس 
المقدمةيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
The medical profession passed through various phases, and it was linked to the existence of man, his life and his physical safety, so man strived to develop all the means that serve these purposes. With disability or weakness, and as a result of this scientific development the emergence of new methods that were credited with treating many complex or incurable diseases, and saving prosthetic medical devices to replace the damaged ones of the human body organs, and prosthetic medical devices have become a nice and necessary need to confront the state of disability. And the deficiency or imbalance in the physical or mental abilities of the human being, which may be due to genetic or environmental factors that impede the person from learning the activities carried out by a healthy person of similar age. Therefore, the work of the doctor is closely related to the human body and his life. The more developed medicine, the greater the possibility of errors, with the expansion and development of medical sciences in line with the needs of treating diseases and human needs. Work to heal the sick.