Cotton Tipped Application
The dipstick applicator method is the original method used to apply LN to lesions. LN is applied by means of an instrument, usually a wooden stick 6 in. long, the end of which is covered with cotton according to the size of the lesion. The cotton-tipped dipstick is dipped into the cryogen placed in a container and then applied firmly onto the lesion until a halo of ice forms around it. A ‘gentler’ treatment than the one utilizing LN may be carried on using dimethyl ether and propane. This mixture is sprayed through a narrow tube to a cotton applicator, which is applied to the lesion.
KeywordsLiquid nitrogen Cotton-tipped dipstick method Dimethyl ether and propane Cryosurgery
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