Matsumoto H, Saegusa M, Saito K, Mizoi K
J Med Eng Technol. 1978 Sep;2(5):239-42. doi: 10.3109/03091907809161807.
There has been much discussion on the distortion of intracardiac pressure waveforms measured by catheter methods. Tip transducers, which can eliminate this waveform distortion, have several problems. There are manufacturing difficulties with the mechano-electric transducing element. The devices also do not remain stable over variations in temperature and with long term clinical use. Safety problems may also be experienced due to the direct connection between external electronic devices and the heart. In order to overcome these difficulties, the application of fibre optics to the measurement of intracardiac pressure has been proposed. In this paper, the design, construction, and evaluation of a side-hole optic catheter, intended for intracardiac pressure measurement, is described.
关于通过导管法测量的心内压力波形失真问题，已经有很多讨论。能够消除这种波形失真的尖端换能器存在几个问题。机电换能元件存在制造困难。这些装置在温度变化和长期临床使用中也不稳定。由于外部电子设备与心脏直接相连，还可能出现安全问题。为了克服这些困难，有人提出将光纤应用于心内压力测量。本文描述了一种用于心内压力测量的侧孔光学导管的设计、构造和评估。
