The research on medical carbon fiber began in the 1960s, when it was found that carbon fiber had excellent anticoagulant properties in the research on anticoagulant materials for artificial blood vessels. Since then, carbon fiber has continued to develop in the medical field, and many application results have been studied.
1.Artificial Bone and Joints
Studies have shown that carbon materials have the advantages of good biocompatibility, little stimulation to living tissue, non-toxic, non-carcinogenic, small specific gravity, and elastic modulus similar to that of human bone, which has the potential to become the fourth-generation implant material. INVIBIO is a supplier of medical devices. The chopped carbon fiber reinforced polyetheretherketone (PEEK) developed by INVIBIO has excellent mechanical strength and tensile creep resistance, which can bear the loads required by bones, blood and human tissues. Good compatibility with human body. The flexural strength of this artificial bone is close to that of human bone compared with artificial bones made of other biological materials, which is of great significance to orthopedic medicine. The wear resistance of the artificial joint made of it is higher than that of ultra-high molecular weight polyethylene and metal products at the movable joint.
2.Bone Repair Material
The resin matrix is polymethyl methacrylate, and the mass fraction of carbon fiber is 20%-60%. Due to its light weight and no interference to MRI examination, the material has been proved to meet the national standard through biotoxicity tests, and it also has good biocompatibility. There are no adverse reactions and no rejection reactions, so it is suitable for fracture fixation materials or fracture internal fixation or bone repair materials.
3.Brain surgery stent
In brain surgery, the stand used to hold the patient’s head is usually made of metal. However, the metal itself is not easily penetrated by X-rays, which will interfere with brain angiography and affect the doctor’s reading. However, in order to ensure that the patient’s head does not shake during brain surgery, the fixed main frame must ensure sufficient rigidity. In view of this, our company used carbon fiber composite materials with comparable or even better stiffness than metal. Made with carbon fiber and polyamideimide resin, it has minimal effect on X-ray penetration. In addition to this, carbon fibers are electrically conductive but not magnetic.
4.Medical aids
1）X-ray, CT and B-ultrasound bed board;
2）Diagnostic bed headrest;
3）Lightweight wheelchair and stretcher.
