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病人麻醉时,心电图、体温和心音是监护的主要生命征象。心电图从病人的胸壁、肩部或背部的表面电极取得。用热敏电阻探头插入直肠或食道来测量体温。心音一般用胶带粘贴于心前区的听诊器或用食道管末端包裹薄的疏松膜来探测。麻醉时,应用外部传感器进行监护,阻碍手术进行,特别是胸部和上腹部手术。同样,在手术时采用一些诊断设备例如心电图,当病人体位改变时带来不便。外部传感器还易受杂音和手术室内其他音的干扰。而食道探测器的优点是很明显的,使用方便,不致影响外科手术,不会拾起外部各种声
When the patient is anesthetized, ECG, body temperature and heart sounds are the major life signs of care. The ECG is taken from the patient’s chest electrode, shoulder or back surface electrode. Thermometers were inserted into the rectum or esophagus to measure body temperature. Heart sound generally with a tape pasting the stethoscope or use the distal end of the esophagus wrapped thin loose film to detect. During anesthesia, external sensors are used for monitoring, hindering the operation, especially in the chest and upper abdomen. Similarly, the use of some diagnostic equipment such as electrocardiograms during surgery creates inconvenience when the patient’s position changes. External sensors are also susceptible to noise and other disturbances in the operating room. The advantages of esophageal detector is obvious, easy to use, will not affect the surgery, will not pick up a variety of external sound