A cardiopulmonary resuscitator massager pad is provided comprising a compressible, fluid filled nonisoelastic enclosure adapted for mounting on the reciprocal piston of a cardiopulmonary resuscitator. The massager pad includes means for restricting lateral expansion of the enclosure and a face, including...http://www.google.de/patents/US4570615?utm_source=gb-gplus-sharePatent US4570615 - Cardiopulmonary resuscitator massager pad
