Fig. 1

The comparison before and after treatment. a The modular combination of the lower extremity segmental compression device. b The experimental group after the placement of the lower extremity pressure device. c For the first day after opening the pressure device, the limb circumference diameter slightly increased and was relatively slender. d A part of c, no obvious subcutaneous ecchymosis, visible skin lines are still present. e The control group on the first day after opening the dressing, the peripheral diameter of the limbs increased significantly and was more swollen. f A part of e, obvious subcutaneous ecchymosis, the swelling is significant, and the skin is oily and bright.