Martinelli J G, Beraldo P S, Campos G P, da Costa e Silva A
Nephron. 1985;39(1):61-3. doi: 10.1159/000183340.
A new plethysmograph for detecting arterial pulse waves in the rat tail is described. With the objective of indirectly measuring the arterial blood pressure in small animal tails an easy-to-build plethysmographic chamber is presented. Essentially in this apparatus the atmospheric air insulated in the chamber is used as the transmitter of the volume changes caused by the arterial flow. By this methodology details of the pulse wave morphology are clearly visible, including the dicrotic notch. It is demonstrated that his chamber combines simplicity with accuracy.
本文描述了一种用于检测大鼠尾部动脉脉搏波的新型体积描记器。为了间接测量小动物尾部的动脉血压，我们设计了一种易于制作的体积描记室。在该装置中，隔离在室内的大气被用作由动脉血流引起的体积变化的传递介质。通过这种方法，可以清晰地看到脉搏波形态的细节，包括重搏波切迹。结果表明，该体积描记室兼具简单性和准确性。
