A device to adjust a strip of circular adjustment around the cephalic pole, that is inserted within the delivery channel together with a sleeve and an applicator. The sleeve is flexible, has both ends open, and a fold in its middle where it is fixed, on the inner side of the fold, and where the sleeve has two traction handles on ends of the inner fold, and where the applicator is provided with a butt head, spatulas that fit in the pockets of the sleeve and a guide to indicate the movement of the spatulas with respect to the head butt, and includes: a strip of circular adjustment of flexible material and at least an adjustment axis with its respective driving mechanism. Also disclosed is a method of using the device.
