体内微型诊疗装置磁定位简化模型的实验研究

Study of Simplified Magnetic-location Model for Micro Medical Device inside Human Body

无创定位技术是MEMS器械用于人体内诊疗过程的重要研究环节之一。这里在分析永磁体空间磁场分布规律的基础上,讨论了体内微型诊疗装置的磁定位技术;同时,通过实验研究和曲线拟和,对磁定位模型进行了简化,使磁定位的计算更快,检测传感器的放置更简单。实验结果表明,在一定误差范围内,该简化模型可以用于体内微型诊疗装置无创实时定位。

Noninvasive location technology is the key one of MEMS-based medical device for diagnosis and treatment inside human body. It analyzed the special distributing rule of permanent magnetic field and discussed magnet location method of micro medical device inside human body. Based on the experiment studying and curve fitting ,a simplified magnet-based location model was described ,which can speed up the calculation and simplify the fixation of magnetic sensor. The experiment proved that ,in a tolerant error range,the new model can be used to locate micro medical device inside human body non-invasively.