An apparatus for assisting a rescuer in performing CPR on a victim. The apparatus comprising at least one of a pulse sensor for measuring the pulse rate of the victim and an SpO2 sensor for measuring blood oxygenation; electronics for processing the output of the sensor or sensors and determining one...http://www.google.com.tw/patents/US20040267324?utm_source=gb-gplus-share專利 US20040267324 - Cardio-pulmonary resuscitation device with feedback from measurement of pulse and/or blood oxygenation
