Reduce treatment times, save costs. The solution is an external device that maintains the abdominal wall in a state of tension while also increasing intra-abdominal volume. It combines the principles of mesh-mediated traction and the basic concept of an external fixator for the abdomen. In vivo tests yielded a significant reduction in the closing forces of the open abdomen after 24 hours. Histological examination ruled out pressure necrosis beneath the support surfaces and damage to the fascial edges.