胶囊内窥镜无线供能模块的研制

Development of Wireless Energy Supply Module for Wireless Capsule Endoscope

为了解决无线胶囊内窥镜电池供电不足的问题,研制了一种供能模块,在体外通过电磁感应方式为体内的胶囊内窥镜进行无线供能.针对胶囊内窥镜在人体内姿态的不确定以及微型化的特点和要求,设计、制作了合适的能量发射和接收装置,并通过实验对能量传输效果进行了验证.结果表明：当发射功率为18 W、在胶囊内窥镜姿态任意变化的情况下,无线供能模块能提供至少150mW的能量,且接收装置的空间尺寸仅φ10 mm×11 mm.在此基础上,研制出的胶囊内窥镜样机在离体实验中得到了清晰的猪小肠图像.

To address the insufficiency of energy by battery for wireless capsule endoscope（WCE）,a novel wireless energy supply module which can transmit energy to WCE based on inductive coupling was introduced.For the orientation indetermination of WCE in the human body and the miniature outline of WCE,an appropriate power transmitter and receiver were designed and tailored,and the effect of power transmission by this module was verified by experiments.The result shows that at least 150 mW powers can be transmitted to WCE when the inputting power is 18W and the outline of power receiver is φ10 mm×11 mm,which fits the requirement of WCE. Based on this work,a WCE is made out and clear images of pig＇s small bowel are gotten in the vitro experiments.