| 摘要 |
PURPOSE:To provide an artificial articular cartilage having an excellent sliding characteristic and a suitable modulus of elasticity by securing fiber meshes on both sides of metal foil harmless to living tissue, and impregnating one of the fiber meshes with a polyvinyl alcohol water-bearing gel. CONSTITUTION:This artificial articular cartilage 1 of a type which replaces the surface of the head of the femur, etc., has a triple structure 5 comprising fiber meshes 3, 4 secured to both sides of foil 2 of a metal harmless to living tissue, such as titanium, a titanium alloy, stainless steel, a Co-Cr alloy, zirconium platinum, gold or silver, each of the fiber meshes 3, 4 being made of a similar metal. One of the fiber meshes (4) has an outer surface 7 of PVA(polyvinyl alcohol) water-bearing gel which is formed by impregnating the mesh with a PVA water-bearing gel 6. Beam-like protrusions are formed on the fiber mesh 3 secured to the bone, to increase the force of adhesion to the bone. |
