This does not take into account the trauma from impacts from objects and from the activity the victim/s have gone through during the avalanche. I’ve personally been involved in an avalanche that when locating the victim, his avy bag was totally deflated, it appeared to be deployed but was deflated at the time of the rescue which was within 10 minutes of the avalanche. I think this would be just one more tool however, honestly it’s tough enough to pull your avy bag when your in this situation. I’ve been there. So is this in conjunction with the avy bag that blows up or is this what they are referring to.