Drawtex is a hydroconductive wound dressing with LevaFiber Technology. LevaFiber is a combination of two types of absorbent cross-action structures that creates the ability to draw exudate away from the wound surface.
Capillary action gives Drawtex its ability to move wound exudate and wound debris into the porous material of the dressing. With the small pores acting as capillaries, intermolecular attractive forces between the exudate and solid surfaces of the wound dressing allow the exudate to be drawn upward against the force of gravity.
Hydroconductive action is controlled by Darcy’s Law that defines the ability of a fluid to flow through porous media. Fluid can move from wetter to drier even against gravity. This explains how water can be transported from the roots of a tree to the leaves. The LevaFiber Technology of Drawtex allows the dressing to lift, hold and transfer the wound exudate both vertically and horizontally by hydroconductive action.
Electrostatic action results in attraction of negatively charged bacteria and cytokines (MMPs) to the positive charge at the surface of the Drawtex. The positive charge at the Drawtex surface results from an electric double layer as positive ions from the edema/exudate coat the slightly negatively charged Drawtex.