The resuscitation techniques are called "kappou" in Japanese. Our teacher has mentioned that he learned these techniques, but I have never seen him teach them to anyone in the regular classes. Maybe this is taught to instructors? One kappou technique is described in Tohei-sensei's book "Kiatsu" (page 62).
Kappou are from the judo tradition to help people recover from choke holds. Here is a link with a little more information:
http://www.fightingarts.com/reading/article.php?id=144