In this probes, the cryogens, usually liquid nitrogen (LN), circulate within and then escape through a back vent. Their tips are placed in contact with the condition to be treated; such tips come in a vast array of shapes to be matched to the type and profile of lesions to be pressed upon or just contacted.
CITATION STYLE
Abramovits, W. (2016). Closed probes. In Dermatological Cryosurgery and Cryotherapy (pp. 113–117). Springer London. https://doi.org/10.1007/978-1-4471-6765-5_22
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