| 摘要 |
<p>Preparing a skin graft by removing a section of skin, splitting it along a plurality of equally spaced, closely associated lines, and interrupting each cut at intervals, then stretching the skin forming openings each bounded by four sides in a netlike, substantially flat graft. A machine for preparing a skin graft comprising a first roller of metal or the like having a plurality of equally spaced, cutting edges extending along the length of the roller and each being a circular, thin cutting edge having the plane thereof perpendicular to the centerline of the roller; and the second, plastic roller having grooves formed uniformly therein in spaced relation along the length thereof and the plane of the bottom of the groove being at an angle to the centerline of the roller at an angle to the cutting edge of the other roller so that when a skin graft is passed therebetween the skin is cut in a series of closely spaced, uniformly slit lines having solid portions at intervals where the cutting edge drops into the groove in the roller, thereby preparing the skin graft to be stretched in a netlike formation.</p> |
