新人工肛门括约肌系统低功耗设计与优化  

Low-Power Consumption Design and Optimization of New Artificial Anal Sphincter

作　　者：姚盛健 颜国正[1] 王志武[1] 周泽润 姜萍萍[1] 丁紫凡 华芳芳 赵凯[1] 韩玎 YAO Shengjian;YAN Guozheng;WANG Zhiwu;ZHOU Zerun;JIANG Pingping;DING Zifan;HUA Fangfang;ZHAO Kai;HAN Ding(School of Electronic Information and Electrical Engineering,Institute of Medical Robotics,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,医疗机器人研究院,上海200240

出　　处：《上海交通大学学报》2021年第7期899-906,共8页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目(61673271,81971767);上海市科技支撑项目(19441910600,19441913800,19142203800);上海交通大学医疗机器人研究院项目(IMR2018KY05)。

摘　　要：以新人工肛门括约肌系统硬件为基础,分析各模块功耗,经过低功耗设计与采样周期的合理设置,将系统功耗显著降低.同时,以肠道压力波形下面积大小为便意判断标准,代替单点压力阈值法,为肛门失禁患者提供如厕依据,进而提高便意感知功能准确性.结合离体与活体实验,所研究的人工肛门括约肌低功耗设计可使系统单次充电后工作时长延长至16 d,工作时长提升达230%,新便意判断标准准确率可达96%.Based on the hardware of the new artificial anal sphincter system,this paper analyzes the power consumption of each module.After low-power consumption design and reasonable setting of the sampling period,the system power consumption is significantly reduced.At the same time,the area under the rectal pressure waveform is used as the standard for judging defecation willingness.Instead of the single-point pressure threshold method,it provides a basis for anal incontinence patients to go to the toilet,and thus improves the accuracy of the rectal perception function.Combining in vitro and in vivo experiments,the low-power consumption of the artificial anal sphincter designed in this paper can extend the working time of the system to 16 d after a single charge.It increases the working time by 230%with a rectal perception accuracy of 96%.

关 键 词：人工肛门括约肌 低功耗便意感知 肠道压力波形 低功耗唤醒 活体实验 

分 类 号：TB18[一般工业技术] R314[医药卫生—基础医学]