基于无线无源技术的膀胱压力监测系统的设计
李春婵1 张旭2* 李刚3 刘斌2 钱柏霖2
1 天津工业大学工程实习教学训练中心,天津 3003872 首都医科大学生物医学工程学院,北京 1000693 天津大学精密仪器与光电子工程学院,天津 300072
Design of the Bladder Pressure Monitoring System Based on Wireless Passive Technology
Li Chunchan1 Zhang Xu2* Li Gang3 Liu Bin2 Qian Bolin2
1 Engineering Teaching Practice and Training Center, Tianjin Polytechnic University,Tianjin 300387, China 2 School of Biomedical Engineering, Capital Medical University,Beijing 100069, China 3 School of Precision Instrument & Opto-electronic Engineering, Tianjin University,Tianjin 300072, China
摘要 为实现膀胱压力的实时测量,改善下尿路功能障碍患者的生活质量,设计一种可长期使用的植入式膀胱压力监测系统。该系统基于无线无源技术,由植入式膀胱压力检测器和体外控制器构成,两者之间通过无线方式传输数据。体外控制器具有设置压力阈值和排尿警报功能。植入式膀胱压力检测器采用无源式设计,能量直接由经皮电磁耦合从体外控制器供给,使其可不受电池容量限制而长期使用。通过软件处理,可增加系统稳定性,降低实现难度。经实验测试:该系统可测量的有效压力范围为266 ~1 284 cmH2 O(绝对压力),分辨率为0.1 cmH2 O。该系统可配合骶神经刺激器使用,实现反馈式闭环控制,更好地重建膀胱功能,为目前医学不能治愈的下尿路障碍患者提供一种新的治疗方案。
关键词 :
膀胱压力 ,
无线无源 ,
排尿障碍 ,
压力传感器 ,
电磁耦合
Key words :
bladder pressure
wireless passive
voiding dysfunction
pressure sensor
electromagnetic coupling
收稿日期: 2016-03-03
基金资助: 北京市自然科学基金(3122011); 北京市教育委员会市属高校创新能力提升计划项目(TJSH20161002002)
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