Biomedical e xamination for t hree-dimensional control of c raniofacial form using new Ni-f ree s hape m emory a lloy.

本研究的目的是从生物医学工程的角度，探讨利用无镍钛合金S骨缝的生长控制来控制颅面三维形态的可能性。建立了对生长期大鼠颅骨缝合施加机械力的动物实验模型。本研究对缝线对机械应力的反应进行了生物学和形态计量学评价，结果表明，该装置可以利用一种新型形状记忆合金对颅面部进行三维形状控制。

The purpose of this study was to examine the possibility of three-dimensional craniofacial form control by the growth control of the suture using i nternalized d evice made of Ni-free Ti-based s hape m emory a lloy from the bi omedical engineering aspect. The animal experiment model which loads mechanical force on the suture of a growth phase rat cranium was produced. Biological and m orphometric al evaluation for the reaction of the suture against the mechanical stress was done in this study.As a result, it was suggested that three-dimensional form control of craniofacial regions could be performed by the device using a new shape memory alloy.