Biomaterials used in human body for supplement and replacement must have special properties based on the type and place of them in body. These materials should not have any negative interaction with the body components and must compatible with tissues of body. In addition, these materials must not produce any toxic substances in body and the consumption of medical drugs should not have the negative effect on it. These conditions show that the application of biomaterials in body is very complicated. Polymer matrix composites with reinforcement of carbon fibers are suitable candidates for medical applications.

In this investigation, initially properties and special advantages of carbon fibers-polymer composites described, and their using in different parts of body (in hard and soft tissues) is studied. They are used as limbs, implants, devices and filler materials for replacement, supplement and fixation of body organs. After that, this study reveals various carbon fibers-polymer composites can replaced instead of other biomaterials (e.g. metals, ceramics and polymers) in the many applications, because of special properties (such as low weight, similar stiffness of hard tissues, high strength, and resistance against fatigue and corrosion), compatible with the modern diagnostic methods (such as MRI and CT) and no negative effect on tissue. These composites have desired properties and haven’t many disadvantages of other biomaterials.

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