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现行的测定颅内压的方法是把插管、蛛网膜下固定螺钉、换能器或其它传导器件用外科手术植于头骨下。由于感染,这种创伤性技术会造成较高的死亡率或延长病人的康复时间。美国纽约Mount Sinai医学院研制了一种无损性颅内压检测器,可用于诊断颅内病变、脑积水.脑损伤和神经科研究。用这种监测器不会带来危险。为了模拟脑和血管间的压力一流量变化关系,该校用有机玻璃做了一个模型,水可以通过导管(代表颈静脉),改变腔体内的压力(代表颅内压),同时阻断导管,并测定管遭压力。实验结果表明阻断的静脉压和颅内压直接成正比(见图1)。颅内压改变时,阻断
Current methods of measuring intracranial pressure are surgically implanted under the skull with cannulas, subarachnoid screws, transducers, or other conductive devices. Due to infection, this traumatic technique can cause higher mortality or prolong patient’s recovery time. Mount Sinai School of Medicine in New York, United States has developed a nondestructive intracranial pressure detector that can be used to diagnose intracranial lesions, hydrocephalus, brain damage and neuroscience research. There is no danger with this monitor. To simulate the pressure-flow relationship between the brain and the blood vessels, the school made a model of plexiglass that changes the pressure inside the lumen (representing intracranial pressure) through the catheter (representing the jugular vein) while blocking the catheter, The pipe was measured for pressure. Experimental results show that the intervented venous pressure is directly proportional to intracranial pressure (see Figure 1). Changes in intracranial pressure, blocked