H&O Equipments CryoPen Serie Manual Del Usuario página 16

Do not hold the CryoPen/CryoProbe applicator still above the lesion. It may flood the area
and damage healthy tissue surrounding the lesion. This can cause blisters and pain to patients.
Condensation of humidity in the air may in some cases create an ice field on top of the lesion.
This 'igloo of ice' will hinder the effective working of the liquid phase of the cryogen
(at -89°C/-128°F) and should be removed with the applicator tip.
After thawing, the tissue turns reddish and has the aspect of a zone of inflammation
due to interstitial bleeding. Always protect this new grown skin by using a sunblocker
for 8 to 20 days after the scab has come off. The learning curve for utilizing the
CryoPen/CryoProbe is short. CryoPen/CryoProbe provides the possibility to have full control
in the application of freezing power. Start practicing on the regular lesions and treat the more
delicate ones after having acquired some experience.
Duration/Depth of the treatment
Hold the tip of the applicator as close as possible to the lesion.
In all literature, the rapid drop of temperature (thermal shock) is described as a critical criterion.
However, always relate to the part of the body where the operation is applied.
In some parts, skin is thinner which requires more caution.
A typical freeze on viral infections may last from 5 to 10 seconds for a small flat wart,
and up to 45 seconds for a full thickness plantar wart. For general purposes most lesions
take about 2 to 30 seconds.
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