DEVELOPMENT OF AN AMBULATORY INCONTINENCE MONITOR

我们开发了一种使用氧化锡半导体气味传感器的固定式动态尿失禁监测仪。这是用于监测残疾老年人的排泄。在本文中，我们提出了一种便携式移动失禁监护仪的试验应用。材料与方法该系统由氧化锡半导体传感器、气泵、信号处理电路、存储和显示器件（PC: NEC9800NX）组成。1)氧化锡半导体气味传感器的改进固定式监测仪采用TGS2600系列D1，这是一种双面安装式传感器，可使加热电路（交流，直流）恒定充电5V±0.2V。在这次试验中，我们使用了TGS 2400系列M1，一种单侧安装式传感器。热电路由脉冲电压驱动。在施加加热器电压后150msec测量传感器信号。传感器的外壳是一个9.2毫米的圆柱，直径更大，高度7.8毫米。重量为1.1g.2)采用Thomas公司2002G（ASF）气泵。施加电压为DC6V。空气以350ml/min的速率连续采样。3)系统：氯乙烯管的尖端放置在尿片和尿片盖之间的尾骨处。使用气泵连续72小时取样空气通过管的尖端。传感器信号由PC机处理，结果显示在CRT上。我们使用了调查结果的硬拷贝。结果该系统对排尿和排便有反应。排尿时的反应曲线呈尖峰状。排便时获得的结果呈高原样。结论我们采用了一种将信号直接传输到上位机的方法。我们计划采用将传感器信号连续记录在RAM上并由PC读取的批量方法。这种方法将适用于便携式类型。脉冲驱动传感器对硫化氢和乙醇气体的灵敏度有所提高。该传感器以及泵在低功耗下驱动，适用于便携式监视器。少

I. INTRODUCTIONWe developed a stationary type ambulatory inconti-nence monitor using a tin oxide semiconductor odor sensor. This was used for monitoring the excretion of disabled elderly. In this paper, we present a trial applica-tion of a portable type ambulatory incontinence monitor.II. MATERIALS and METHODSThe systems consists of a tin oxide semiconductor sensor, an air-pump, signal processing circuits, and a memory and display device (PC : NEC9800NX).1) Improvement of the tin oxide semiconductor odor sensorWe used TGS2600 series D1 for the stationary type monitor, a dual sided mounting type sensor which en-abled constant charged conditions of heating circuits (AC, DC) of 5V plus-minus 0.2V. For this trial, we used TGS 2400 series M1, a one-sided mounting type sensor. The heat circuits were driven by the pulse voltage appli-cation. The sensor signals were measured at a timing of 150msec after the application of the heater voltage. The housing of the sensor was a column of 9.2mm oute … More r dia-meter and 7.8mm in height. Weights is 1.1g.2) Air pumpaphragm Pump, 2002G(ASF made by Thomas Co.) was used. Applied voltage was DC6V. The air was sampled at a rate of 350ml/min continuously.3) SystemsThe tip of the vinyl chloride tube was placed at the coccyx between the diaper and the cover. Air was con-tinuously sampled through the tip of the tube using an air pump for 72 hours. The sensor signals were processed by the PC and results were displayed on a CRT. We used hard copies of the results for the investigation.III. RESULTSThe systems responded to urination and defecation. Response curve obtained at the time of urination showed spike like patterns. That obtained at the time of defeca-tion showed high plateau like patterns.IV. CONCLUSIONSWe used a method to transfer the signals direct to the PC. We plan to use a batch method by which the sensor signals will be continuously recorded on RAM and read by the PC. This method will be applicable for the portable type. The pulse driven sensor showed improved sensitivity especially to hydrogen sulfide and ethanol gases.The sensor as well as the pump driven at low power consumption that is suitable for the portable monitor. Less