Blechschmidt-Trapp R A, Hohlfeld O, Müller R, Werthschützky R
Technische Universität Darmstadt, Fachbereich Elektrotechnik und Informationstechnik, Institut für Elektromechanische Konstruktionen.
Biomed Tech (Berl). 2002 Mar;47(3):43-7.
We described a pressure sensor probe suitable for assessing dynamic rectal pressure profiles. It comprises 10 piezoresistive sensors mounted in low-temperature co-fired ceramic. To protect against corrosion, the sensors are coated with a biocompatible silicone elastomer. The ceramic measures 4.5 x 5.5 x 1.4 mm. The entire probe has a diameter of 9 mm and a length of 20 cm. A healthy test subject was submitted to rectal manometry. The experimental data and analysis of linearity, hysteresis errors, temperature dependence and reproducibility are discussed. The sensor probe extends classical anorectal manometry, in particular with regard to the diagnosis of rectal motility disorders.
我们描述了一种适用于评估动态直肠压力曲线的压力传感器探头。它由10个安装在低温共烧陶瓷中的压阻式传感器组成。为防止腐蚀，传感器涂有生物相容性硅橡胶弹性体。陶瓷尺寸为4.5×5.5×1.4毫米。整个探头直径为9毫米，长度为20厘米。一名健康测试对象接受了直肠测压。讨论了实验数据以及线性、滞后误差、温度依赖性和再现性分析。该传感器探头扩展了传统的肛肠测压法，特别是在直肠动力障碍的诊断方面。
