CPR Manikin Features: 1.Simulatingstandardopenairway 2.Externalbreastcompression:displaydeviceandalarmdevice a.indicatorlightdisplayofcorrectandwrongcompression;alarmofwrongcompression b.intensitydisplayofcorrect(4-5cm)andwrong(<4cmor>5cm)compression;alarmofwrongcompression; digitalstripindicatorlight(yellow,green,red)showscompressiondepth 3.Artificialrespiration(inhalation):displaydeviceandalarmdevice a.Displayofinhalation(≤500ml-600ml≤);stripindicatorlightshowsinhalationvolume,alarmofwrongoperation. b.Inhalationtooquicklyortoomuchresultinairenteringintostomach;indicatorlightdisplayandalarm prompting. 4.Ratioofcompressionandartificialrespiratory:30:2(oneortwoperson) 5.Operatingcycle:onecycleincludesfivetimesof30:2ratioofcompressionand artificialrespiration 6.Operationfrequency:100timesperminute(thelatestinternationalstandard) 7.Operationmethods:exerciseoperation 8.Examinationofpupilresponse:mydriasisandmyosis 9.Examinationofcarotidresponse:pinchthepressureballbyhandandsimulatecarotidpulse