What is the CPR press technique?

The cardiopulmonary resuscitation machine (CPR) first generation of mechanical CPR was developed to simulate hands-free CPR with continuous compressions, represented by the Thumper Of The Saber CPR from The Michigan Company. Later, the LUCAS heart assistance system introduced by Jolife in Sweden deepened the point press, improved the pressing head and adopted the suction cup type pressing head. The first-generation pressing technology applies the principle of heart pump to carry out point-type pressing on the heart outside the chest. The efficiency of single-point pressing needs to be improved.

The second generation of mechanical CPR breaks through the method of single-point compression, and adopts full chest cover to evenly distribute the load on the upper chest according to the pressure, mainly represented by ZOLL's AutoPulse automatic cardiopulmonary resuscitation system. The second generation compression technology applies the chest pump principle to compress the whole chest cavity, making the force of the whole chest cavity more balanced.

The third generation of mechanical CPR adopts the full chest envelope-type THREE-DIMENSIONAL compression method. On the basis of the key point pressure, the chest is squeezed at the same time, mainly represented by MCC series chest compressors of SunLife Company in China. The third generation of compression technology combines the advantages of heart pump and chest pump, making the positive and negative pressure range in the chest cavity larger. This technology was invented by Professor Dr. Max Harry Weil, the "father of critical medicine in the world".