Cicchiello L R
J Neurosurg Sci. 1979 Oct-Dec;23(4):311-14.
This work presents a possible method of overcoming difficulties arising during the recording of intracranial pressure (ICP) from the cerebral ventricles of patients suffering from head injuries or intracranial space occupying lesions. The main difficulties in obtaining these measurements are the risk of infection and measurement errors caused by artefacts from head movements. These two problems arise when a cannula inserted into the cerebral ventricle is connected outside the skull to an external transducer measuring pressure. We propose a method utilizing a modified flushing shunt connected to a strain gauge epidural transducer. The characteristic (voltage against pressure) of the device was tested in vitro. This calibration gave satisfactory results both in the linearity of the characteristic and in the performance of the device.
这项工作提出了一种可能的方法，用于克服在记录头部受伤或颅内占位性病变患者脑室颅内压（ICP）时出现的困难。获取这些测量值的主要困难在于感染风险以及头部运动伪影导致的测量误差。当插入脑室的套管在颅骨外部连接到测量压力的外部换能器时，就会出现这两个问题。我们提出一种利用连接到应变片硬膜外换能器的改良冲洗分流器的方法。该装置的特性（电压与压力关系）在体外进行了测试。这种校准在特性的线性度和装置的性能方面都给出了令人满意的结果。
