Delavault E, Saumon G
Pflugers Arch. 1980 Jun;385(3):259-61. doi: 10.1007/BF00647466.
The "oclusion pressure" technique is widely used to test the response of respiratory centers to CO2. The graphic treatment of the test necessitates a fast recording of the mouth pressure signal, thus using a great deal of paper and requiring a tedious interpretation. The device described here controls an electromagnetic valve closing it during expiration and opening it after a given time delay, following the onset of inspiration. During that time only, the mouth pressure signal goes through an analog switch, the highest signal value is then equal to the occlusion pressure. This device allows the use of a slow recorder without loss of information. In addition, it has the advantage of generating very short respiratory occlusions, thus sparing the subject being tested from interferences in subsequent respiratory cycles. It can be used as a pretreatment unit to be associated with a microprocessor.
“阻断压力”技术被广泛用于测试呼吸中枢对二氧化碳的反应。该测试的图形处理需要快速记录口腔压力信号，因此会消耗大量纸张且需要繁琐的解读。此处描述的装置控制一个电磁阀，在呼气时将其关闭，并在吸气开始后的给定时间延迟后将其打开。仅在那段时间内，口腔压力信号通过一个模拟开关，然后最高信号值等于阻断压力。该装置允许使用慢速记录仪而不会丢失信息。此外，它具有产生非常短暂呼吸阻断的优点，从而使被测对象免受后续呼吸周期干扰。它可用作与微处理器相关联的预处理单元。
