Petrican P, Sawan M A
Department of Electrical and Computer Engineering, Ecole Polytechnique de Montréal, Canada.
IEEE Trans Rehabil Eng. 1998 Mar;6(1):66-74. doi: 10.1109/86.662622.
Nocturnal incontinence (enuresis) affects 20% of children over four years old, and this figure typically decreases by 15% each year. At the age of 18, 1% of those people remain enuretic. Nocturnal enuresis can be treated by means of a conditioning device that awakens the patient once the urine level has reached a preestablished threshold of the capacity of his or her bladder. We have designed and implemented a portable miniaturized ultrasonic monitor, which permits estimation of the urine volume with an accuracy of 75%. Prototypes have been completed and validated on 41 patients (children) at Ste. Justine Hospital (Montréal). On the first group of 33 patients, we used a hand-held transducer to determine the volume detection range, which is accurate for volumes between 40 and 400 mL. With the second group of 8 patients, the device was mounted on an elastic belt around the abdomen. Measurements were taken in order to validate the accuracy of urine threshold detection and the activation of the corresponding alarm.
夜间遗尿症影响着20%的4岁以上儿童，且这一比例通常每年下降15%。到18岁时，仍有1%的人存在遗尿问题。夜间遗尿症可通过一种调节装置进行治疗，该装置一旦尿液量达到患者膀胱预先设定的容量阈值，就会唤醒患者。我们设计并实现了一种便携式小型化超声监测仪，其对尿量的估计准确率为75%。原型已完成，并在蒙特利尔圣贾斯汀医院对41名（儿童）患者进行了验证。在第一组33名患者中，我们使用手持式换能器来确定体积检测范围，该范围对于40至400毫升的尿量准确。对于第二组8名患者，该装置安装在腹部的弹性腰带上。进行测量以验证尿液阈值检测的准确性和相应警报的激活情况。
