Prosthesis for replacing articulation between metacarpal bone and carpal trapezius bone of patient's hand, has oblong body whose central cores are made of flexible material with rigidity higher than that another material of body

摘要

The prosthesis has a block (10) placed at a part of a flexible material i.e. silicone elastomer. The block has oblong bodies and anchoring tab (24), each has multiple longitudinal axes (12, 16, 22, 26), where the tab is integrated to each body so that two axes are perpendicular between the axes. A connection unit (30) connects each body and arranged, so that another two axes are appreciably orthogonal and remaining axes are collinear. One of the oblong bodies has central cores (42, 43) made of another material with rigidity more than the former material. The latter material is a mixture of the former material and a material of reinforcement e.g. glass fiber carbon fibers, doping agent e.g. talc and aluminum oxide.