Papeschi G, Merigliano S, Zaninotto G, Baessato M, Ancona E, Larini M
J Med Eng Technol. 1984 Sep-Oct;8(5):221-3. doi: 10.3109/03091908409032080.
An iridium-iridium oxide electrode for in vivo pH measurement of the distal oesophagus is described. It is small and flexible so it is well accepted by patients for long-term pH monitoring. The electrode also offers the possibility of including another electrode and/or a pressure sensor for simultaneous detection of two or more parameters--gastric pH or oesophageal pressure for example. A clinical study was performed on 15 healthy volunteers and the results were checked on a DGC Nova 4/S computer, showing less than 0.005% of tension in mV out of the established range in a period of 24 h pH monitoring. The volunteers' results were compared with the normal values obtained by DeMeester using a glass electrode on a similar, healthy group of American patients and no significant differences were observed. Owing to its small size, reliability, fast response to pH changes, durability and its easy storage, the Ir/IrO2 electrode is ideal for long-term pH monitoring of the upper gastro-intestinal tract.
本文描述了一种用于远端食管体内pH值测量的铱-氧化铱电极。它体积小且灵活，因此患者很容易接受用于长期pH监测。该电极还提供了包含另一个电极和/或压力传感器的可能性，以便同时检测两个或更多参数，例如胃pH值或食管压力。对15名健康志愿者进行了一项临床研究，并在DGC Nova 4/S计算机上检查了结果，结果显示在24小时pH监测期间，毫伏张力低于既定范围的0.005%。将志愿者的结果与DeMeester使用玻璃电极在一组类似的健康美国患者身上获得的正常值进行比较，未观察到显著差异。由于其体积小、可靠性高、对pH变化响应快、耐用且易于储存，Ir/IrO2电极非常适合对上消化道进行长期pH监测。
