BLOCK FOR FIXING VERTEBRAS

摘要

PURPOSE:To provide a block for fixing vertebras which has a wide contact area with vertebras and can steadily fix vertebras. CONSTITUTION:The block for fixing vertebras 1 has holes 1b for fastening, and a circular arc side 1a to come into contact with vertebras which fits the shape from the spines to the curves of vertebras. The block is made of bio- active crystallized glass which is mainly composed of calcium and silica.