Abstract
When repairing skin with extensive skin defects, devices are usually used to obtain mesh grafts from skin flaps with different expansion coefficients. They consist of a cutting element, a supporting roller and a plate. As a cutting element they use special interchangeable knives, a roller with a continuous thread or safety razor blades installed in large numbers (from 50 to 250) perpendicularly to the axis of the rotating roller or to the supporting plate. The main disadvantage of these devices is the difficulty of blanking and changing the cutting elements, which is dangerous and requires not only considerable time, but also a certain qualification of medical personnel.
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