Drainage belongs to medical equipment, particularly to medical tools and is specified for drainage of cavities. Drainage comprises a first tube, an additional tube, which is fixed upon it, a unit of the clots splitter and the splitters fixing element. The additional tube has a smaller diameter with an opening, inside which the conductor is mounted, a unit of clots splitter is installed on the working end of the drainage, it comprises a cylinder, a tube with an opening, placed on it, which is the continuation of the additional tube of the drainage and a spring with a cutter inside the cylinder. A cutter is located diametrically inside the working head, while in the end of the wall of the first tube and the splitters unit comprises a channel, inside which splitters fixing element was led, its working end is inside the units cylinder and fixes the splitter. This design ensures the permeability of the wound channel after the drainage is removed and it is possible to reinstall drainage into the cavity strictly along the existing wound channel.
