Department of Information and Communications Systems Engineering, University San Pablo CEU, and Cirtical Care Unit, University Hospital of Getafe, Boadilla del Monte 28668, Madrid, Spain.
Sensors (Basel). 2010;10(12):10714-32. doi: 10.3390/s101210714. Epub 2010 Dec 2.
In critical care units most of the patients' physiological parameters are sensed by commercial monitoring devices. These devices can also supervise whether the values of the parameters lie within a pre-established range set by the clinician. The automation of the sensing and supervision tasks has discharged the healthcare staff of a considerable workload and avoids human errors, which are common in repetitive and monotonous tasks. Urine output is very likely the most relevant physiological parameter that has yet to be sensed or supervised automatically. This paper presents a low cost patent-pending device capable of sensing and supervising urine output. The device uses reed switches activated by a magnetic float in order to measure the amount of urine collected in two containers which are arranged in cascade. When either of the containers fills, it is emptied automatically using a siphon mechanism and urine begins to collect again. An electronic unit sends the state of the reed switches via Bluetooth to a PC that calculates the urine output from this information and supervises the achievement of therapeutic goals.
在重症监护病房，大多数患者的生理参数都是通过商用监测设备来感知的。这些设备还可以监测参数值是否在临床医生设定的预设范围内。感知和监督任务的自动化减轻了医护人员的相当大的工作量，并避免了在重复和单调的任务中常见的人为错误。尿流量很可能是最相关的生理参数，但尚未实现自动感知或监督。本文介绍了一种低成本的专利申请中设备，能够感知和监督尿流量。该设备使用磁浮子激活的干簧开关来测量两个级联排列的容器中收集的尿液量。当其中一个容器装满时，它会自动使用虹吸管机构排空，尿液开始再次收集。一个电子单元通过蓝牙将干簧开关的状态发送到 PC，PC 会根据这些信息计算出尿量，并监督治疗目标的实现。
