Torres-Moreno R, Morrison J B, Cooper D, Saunders C G, Foort J
School of Kinesiology, Simon Fraser University, Burnaby BC, Canada.
J Rehabil Res Dev. 1992 Summer;29(3):35-44. doi: 10.1682/jrrd.1992.07.0035.
A computer-aided socket design procedure (CASD) has been developed whereby an above-knee socket shape can be created based on anthropometric measurements taken from an amputee. The anthroometric measurements are used to select a subset of three reference shapes from a Reference Shape Library stored in the computer in the form of three-dimensional numerical data. Transformation procedures then scale the reference shapes at each cross-sectional level to match the amputee's cross-sectional areas. Blending of the three shapes is determined by tissue mass weighting factors, to yield a single custom socket configuration, known as the "basic socket shape." Subsequent graphical procedures in the CASD system allows further sculpting of the shape in the form of interactive adjustments of the numerical data to reach the socket shape desired by the prosthetist. The resultant shape data can then be transferred to a computer numerically controlled (CNC) milling machine to carve a model of the socket shape.
一种计算机辅助的接受腔设计程序（CASD）已被开发出来，通过该程序可以根据从截肢者身上获取的人体测量数据来创建一个大腿假肢接受腔的形状。这些人体测量数据用于从以三维数值数据形式存储在计算机中的参考形状库中选择三个参考形状的子集。然后，变换程序在每个横截面水平上对参考形状进行缩放，以匹配截肢者的横截面积。这三个形状的融合由组织质量加权因子决定，从而产生一个单一的定制接受腔配置，即所谓的“基本接受腔形状”。CASD系统中的后续图形程序允许通过对数值数据进行交互式调整的形式对形状进行进一步雕刻，以达到假肢技师期望的接受腔形状。然后，可以将所得的形状数据传输到计算机数控（CNC）铣床，以雕刻出接受腔形状的模型。
