Application of finite element analysis in wound sealing negative pressure drainage in the treatment of swelling

Abstract Wound closure combined with negative pressure pump drainage technique is an emerging medical technology. This technique is widely used in various clinical fields and plays an important role in the treatment of various acute and chronic wounds. The fluid solid coupling porous elastic structure model is used to study the pressure distribution of negative pressure drainage wound when different negative pressure is applied. By using Abaqus software to construct the corresponding finite element model, the deformation of various types of negative pressure kits under different pressures, whether the pressure distribution is uniform, whether the drainage is smooth and so on are studied by computer calculation and analysis. The effects of different negative pressure on the internal pressure of the dressing are analyzed and compared, so as to find a way to drive and suck out an appropriate amount of residue. The improved finite element model provides theoretical basis and guidance for the design of negative pressure drainage device and an improved direction for the clinical application of this technology.