Mammut PULSE Barryvox Manuel d'utilisateur télécharger pdf (Page 24)

The data are displayed on the buried subject’s trans-

ceiver and also sent across the W-Link radio connec-

tion to the transceivers of the rescuers. Based on the

list of buried subjects, the rescuer decides in which

order he or she will locate and dig them out. Using

vital data as a triage criteria shortens the burial dura-

tion for those subjects having higher chances of

survival. This improves the overall rescue efficiency.

The vital data do not provide an assessment of

the health of the buried subject. They do not sub-

stitute an assessment by medically trained per-

sonnel (physician).

Only rescuers using a transceiver with a W-Link

radio connection are able to receive vital data.

The range of the W-Link depends on terrain and body

interference, on the physical characteristics of the

avalanche debris as well as on the orientation and

distance to the buried subject. The range of the W-

Link is therefore limited.

Companion Rescue

7.4 Triage Criteria and Vital Data

7.4.1 Triage

With limited resources (few rescuers) it is not possible

to locate and dig out all the buried subjects at the

same time. The question arises in which order the

buried subjects shall be rescued. Subjects with high-

er chances of survival should be located and dug

out first. Besides simple terrain factors, e.g. drop

over a cliff, the burial depth and vital data are an

important triage criteria.

7.4.2 Vital Data Detection

The PULSE Barryvox

contains highly sensitive sen-

sors (g-sensor) that can detect slight motion of the

body, such as a pumping heart or breathing lungs.

Any motion within a certain maximum lag time is

interpreted as vital data. The buried subject belongs

to the category with high chances of survival. It

can be assumed that buried subjects, which have

survived the first 35 min, are still able to breathe (air

pocket), and therefore have increased chances of

survival. At the same time, the detectability of vital

data decreases due to hypothermia. Therefore, buried

subjects who have transmitted vital data for the first

35 min are considered to belong to the category

with high chances of survival for the rest of their bur-

ial duration.

All the buried subjects, whose transceivers are

technically not capable of detecting vital data or

cannot detect any for whatever reason, belong to

the category with unknown chances of survival.

If you carry the transceiver in a trouser’s pocket,

the detection of vital data is not possible due to

the almost non-existent movements.

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Mammut PULSE Barryvox Manuel d'utilisateur Page 24

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