The mid-1970s, the rise of the aid sent Anaheim Mubarak (Heimlich manauver), referred to as the sea's maneuver. The method is mainly used for foreign body respiratory obstruction, respiratory arrest of emergency. Foreign body is common in infants and young children who, due to immature infant epiglottis, function is not perfect, in infants mouth and cracked speak, laughing and crying, slapstick and vigorous activity, it is easy to mouth with intratracheal inhalation, causing airway blockage caused by suffocation. Identifying tracheal obstruction is the key to successful treatment: Hay technique is pressure on the abdomen and back impact patient an upward oppression both lungs, which drives the formation of a pulmonary residual gas stream, drive straight, the clogging of the trachea, throat get rid of the foreign body, therefore, Hay technique commonly used by the international community to spread. ? The main function: normal airway infarction simulation; operation can be carried out with standard CPR:? Artificial respiration and cardiac compressions; simulated suffocation, foreign body airway obstruction; design and precise standard layout standard infant Human Scale; accurate??? anatomy, sternum and ribs can be touched.