模拟定位机用固定标尺研制

Development and application of fixed ruler for simulated locator

目的 :研制一种测量人体器官之间距离的模拟定位机固定标尺。方法 :基于模拟定位机现有测量手段存在的问题和临床对固定标尺的需求,进行先期调查、产生标尺概念、标尺与机器的组合匹配等功能设计,再确定标尺固定孔、定义线槽结构和选择标尺基板,整个固定标尺由刻有多条线槽的有机玻璃板和多条圆柱形紫铜丝组成。结果:在模拟定位机等中心处,固定标尺的刻度数值与显示器上对应的标尺刻度数值相等,且使用该固定标尺测距,一次能获得多点距离的数值并保存在医学影像中,操作简单方便。结论:该固定标尺实现了简单、方便、清晰且精确的人体器官之间的距离测量,为同类产品的更新设计奠定了基础。

Objective To develop a fixed ruler for the simulated locator to measure the distance between human organs.Methods Analyses were carried out on the problems of the existing measures of the simulated locator and clinical requirements, and then the matching of the ruler with the locator and etc were explored. The structures of the fixing hole and slots were determined, and the ruler base was selected. The ruler was composed of an organic glass plate with multi slots and multi cylindrical copper wires. Results At the isocenter of the locator, the fixed scale values of the ruler equaled to those of the ruler on the screen, and the values for multi point distances could be obtained with the fixed ruler and stored in medical image. Conclusion The fixed ruler measures the distance between human organs simply and accurately, and lays a foundation for the development of likely product.