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监护仪的故障分析和排除方法大全

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发表于 2020-10-21 12:33:14 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;"><a target="_self" style="box-sizing: border-box; color: rgb(0, 153, 255);"><strong style="box-sizing: border-box;">监护仪</strong></a>作为最常用的医疗设备之一,广泛应用于各临床科室之中,使用频率较高,因此,出现故障的次数也相对较多。保障监护仪正常工作,不仅能为病人提供全面的监护,也能提高医护人员的工作效率,为疾病的分析、诊断提供重要、有效的信息。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">&nbsp; 下面介绍与监护仪常用的监护参数ECG(心电图)、SPO2(血氧饱和度)、NIBP(无创血压)、RESP(呼吸)相关的故障分析与排除的方法。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="font-size: 14px;"><strong style="box-sizing: border-box;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); font-family: 宋体, SimSun; font-size: 16px;">一、ECG相关故障</span></strong></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">监护仪ECG的检测,是利用ECG导联线检测和接收心脏的电激动所产生的生物电流在体表形成的电位差的过程。监护仪常见故障有两种:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;"><span style="font-family: 宋体, SimSun;">故障现象:</span>人体正确连接心电电极后,监护仪提示“无信号接收”或“电极脱落”。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">故障分析与排除:监护仪提示“无信号接收”或“电极脱落”,一般是因为电极脱落、损坏或心电模块故障导致,可借助心电模拟信号发生器进行检测。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;"><span style="font-family: 宋体, SimSun;">排除步骤:</span>正确连接心电模拟信号发生器和ECG导联线,并开机检测。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)若心电信号波形、数值显示正常,则监护仪及心电导联线正常,需检查电极与人体连接是否正常。电极脱落或电极片使用过久融化,都会导致无心电波形的显示。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)若无心电信号波形、数值显示,则需判断ECG导联线是否完好。可更换完好的ECG导联线再次测试,如故障排除,则原ECG导联线损坏,需更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)若更换完好ECG导联线后,故障仍未排除,则应怀疑心电模块故障,需拆机进行维修或更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障现象<span style="font-family: 宋体, SimSun; font-size: 14px;"></span>:<span style="font-family: 宋体, SimSun;">心电信号扫描基线不能稳定显示于屏上,漂移不定;心电波形异常或有干扰,测值不准。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">故障分析排除:心电基线漂移,波形异常,测量不准,一般与外界干扰或机器设置有关。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">排除步骤:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)检查病人贴电极片的部位是否干净、潮湿,必要时可用酒精对皮肤进行清洁处理。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)查看电极片是否连接完好或者因使用过久融化,需要更换;一般建议电极片使用3h左右需更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)机器自身内部受潮,需连续开机24h,进行干燥处理。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(4)将机器移至电磁干扰较少的地方,重新开机观察,排除周边机器电磁干扰的影响。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(5)检查机器交流电源有无接地线。若未连接,需重新接好。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(6)查看选择的ECG滤波方式或工频设置是否正确,若不正确,选择合适的滤波方式和工频(一般应设置为50Hz)。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="font-size: 14px;"><strong style="box-sizing: border-box;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 16px;">二、SPO2相关故障</span></strong></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">监护仪对SPO2的测量,利用的是血液中Hb和HbO2-εcd的吸光特性和基于朗伯比尔定律I=I0e(式中I和I0分别为入射和透射光强度,ε、c、d分别为物质吸光系数、溶液浓度和光穿过路径)实现。常见故障有2种:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障现象:<span style="font-family: 宋体, SimSun;">在正常开机情况下,无血氧波形和数字显示。故障分析排除:无血氧波形及数字显示,一般是由于血氧探头损坏或血氧模块故障导致。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">排除步骤:<span style="font-family: 宋体, SimSun;">正确连接血氧探头并开机进行检测。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)确定血氧探头是否完好。可查看探头中二极管点亮是否正常或直接用替代法更换新探头检测予以排除。若确定探头损坏,则需更换。PO2探头的损坏一般分两种:</span></p><blockquote><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">①指套中发光二极管或光电二极管烧毁;</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">②接头内部导线脱焊,此时可旋开接头,重新焊接线路。</span></p></blockquote><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)检查机器探头连接端口及其线路是否正常。连接探头的端口或相连线路、接头脱落或松动,可导致探头连接失败。此时,需拆机将各端口和线路重新固定后再连接探头检测。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)如前两步中所提的可能故障均已排除,而机器仍无血氧波形和数字显示,则应考虑氧模块故障,需进行维修或更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障现象:<span style="font-family: 宋体, SimSun;">血氧波形和数字有显示,但波形干扰较大或血氧测量值不准确。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障分析排除:<span style="font-family: 宋体, SimSun;">血氧波形干扰较大或测量值不准确,一般是由外界环境因素引起。</span></span></p><p><span style="font-size: 14px;">排除步骤:排除患者自身活动的干扰,使病人安静后检测。应注意检测环境中的光线的影响。由图1中所示的HbO2和Hb的吸光特性及朗伯比尔定律(I=I0e)可知,检测环境中有强光(尤其是红光和红外光)照射时,可能引起I0和I的改变,导致测量不准。</span></p><p><span style="font-size: 14px;">还需注意染色剂的影响。若患者在进行SPO2测量前注射有染色剂,便会改变血液浓度(c)和吸光系数(ε),影响最终的测量结果。</span></p><p><span style="font-size: 14px;"><br  /></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">最后,避免和NIBP在同侧测量或长时间使用同一手指进行测量。SPO2探头指套长时间压迫同一手指以及NIBP测量时袖袋对手臂的压迫作用,均可能导致该手指血液流通不畅,易引起测量误差和病人不适。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="font-size: 14px;"><strong style="box-sizing: border-box;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 16px;">三、NIBP相关故障</span></strong></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">监护仪利用振波法测量NIBP。测量过程中,血液的流动所引起的血管壁搏动将在袖带内产生气体振动波,该振动波通过气管传至机内压力传感器,实时检测袖带压。常见故障有两种:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障现象:<span style="font-family: 宋体, SimSun;">进行NIBP测量时,提示“袖带错误”“气泵漏气”或压力错误报警。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障分析排除:<span style="font-family: 宋体, SimSun;">一般是由于气道漏气、堵塞或血压模块打气泵和放气阀故障导致。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">排除步骤:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)检查延长管和袖带有无明显破损或折叠堵塞,必要时需更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)检查延长管与袖带和机器的端口是否接紧。必要时,需用酒精对端口进行清洁处理。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)机器内气管脱落或松动导致漏气,此时需拆机对内部管道进行重新连接、加固。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(4)排除NIBP模块上气泵和放气阀的故障。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">①气泵检测:拆下气泵接通12V直流电源,测试气泵工作及出气量是否正常,如不正常,气泵损坏需更换;</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">②放气阀检测:阀内灰尘聚集,引起阀门关闭不严或阀内气道堵塞,将分别导致监护仪提示漏气故障或出现压力错误报警。此时,可将气阀拆下,用注射器对阀内吹气作清洁处理。必要时需更换放气阀或该NIBP模块。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障现象:<span style="font-family: 宋体, SimSun;">外部气路完好,可正常充、放气,但无血压值或血压值不准。</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-size: 14px; font-family: 宋体, SimSun;">故障分析排除:</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)选择合适大小袖带,并在袖带绑定前,去除体表阻隔物以及挤出袖袋内气体。袖袋过松或过紧,都会使袖带内气体无法正常感受血管壁的搏动产生振动波,导致血压无法测量或测值不准。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)排除病人自身活动的影响。利用振波法测量NIBP,其中最主要的一个缺点就是易受外界振动的干扰,因此,NIBP测量应在平静状态下进行。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)袖带绑定位置和病人姿势应当正确。研究结果表明,NIBP测量的位置和心脏的高度每相差10cm,所测得的血压值会相差约8mmHg。因此,测量NIBP时应保持测量位置与心脏的高度平齐。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(4)应考虑血压模块故障。该模块中压力传感器或信号处理系统的损坏,都会导致无测量结果或测值不准。此时,需拆机对该模块进行维修或更换。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="font-size: 14px;"><strong style="box-sizing: border-box;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 16px;">四、RESP相关故障</span></strong></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">监护仪测量呼吸大多采用电阻抗法。主要是通过RA和LL两个电极拾取人体胸廓因呼吸阻抗变化而引起的电信号,并经机器系统分析处理,最终得出呼吸频率的过程。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="font-size: 14px;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 16px;">故障现象:无呼吸波形或呼吸波形异常,测量不准。故障分析排除:由RESP的测量原理可知,呼吸信号。</span><span style="font-size: 14px; box-sizing: border-box; font-family: 宋体, SimSun;">检测是由ECG电极来完成的,因此与ECG有密不可分的关系。具体应排除以下四种因素的影响:</span></span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(1)排除病人频繁活动和剧烈咳嗽的干扰,应在平静状态下测量。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(2)正确安放电极位置,尤其是RA和LL两电极的位置要安放正确。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(3)排除导联线、电极片自身质量和接触不良的影响。</span></p><p style="box-sizing: border-box; margin-bottom: 10px; color: rgb(68, 68, 68); font-family: 微软雅黑, Arial, Helvetica, sans-serif; font-size: 14px; line-height: 22.4px; white-space: normal;"><span style="box-sizing: border-box; font-family: 宋体, SimSun; font-size: 14px;">(4)呼吸模块故障,需拆机维修或更换。</span></p><section class="pEditor " style="line-height: 25.6px; white-space: normal;"><section data-css="background-color: rgb(239, 239, 239);border-radius: 5px;border: 1px solid rgb(153, 153, 152);margin: 0px;padding: 5px" style="padding: 5px; 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