After creating "fontanelles" in infant rhesus monkeys, we measured intracranial pressure of these monkeys directly with an indwelling cannula and indirectly with a Ladd 1700 sensor. Values obtained with the Ladd sensor placed over the shaven fontanelle closely approximate directly measured pressure in acute experiments in these animals and in human cadavers. Application of the device is simple and application pressure need not always be the same for multiple determinations. The response time is 1.6 cm H20/sec, which is adequate to record changes in intracranial pressure caused by changes in the partial pressure of CO2 in arterial blood.
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机译：在婴儿恒河猴中创建“ font门”后，我们直接使用留置套管并通过Ladd 1700传感器间接测量了这些猴子的颅内压。在这些动物和人体尸体的急性实验中，将Ladd传感器放置在剃过的font门上获得的值非常接近直接测量的压力。设备的应用很简单，并且多次确定的应用压力不一定总是相同的。响应时间为1.6 cm H20 / sec，足以记录因动脉血中CO2分压变化而引起的颅内压变化。
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