A kind of negative pressure therapeutic devices include a filling material and a sealed unit. The material of the filling material is hydrophilic polyurethane foaming body, it is that a hydrophilic polyurethane and a foaming component is made to foam and obtain, and the hole of the hydrophilic polyurethane foaming body is the cap holes of discontinuous, the hydrophilic polyurethane is to react the first polyether polyol with polyisocyanates, then star shaped block polyurethane obtained by reacting with the second polyether polyol and hyaluronic acid, first polyether polyol contain at least three terminal hydroxyls. The sealed unit covers on the what filling material, forms substantially sealing and contains the wound space of the filling material. The utility model negative pressure therapeutic devices are not required to repeatedly to cut and modify before being placed in wound filling material, can effectively facilitate Shang Kou More conjunction, and avoid removing when replacing because be stained with stick caused by injury.一種負壓治療裝置，包含一填充材及一氣密單元。該填充材的材質是親水性聚氨酯發泡體，其是使一親水性聚氨酯及一發泡組分發泡而得，且該親水性聚氨酯發泡體的孔洞為非連續式的封閉孔洞，該親水性聚氨酯是使第一聚醚多元醇與多異氰酸酯反應，接著與第二聚醚多元醇及透明質酸反應而得的星狀嵌段聚氨酯，該第一聚醚多元醇含有至少三個末端羥基。該氣密單元覆蓋於該填充材上，形成大體上密封且含有該填充材之傷口空間。本新型負壓治療裝置在置入傷口前不需多次裁切及修整填充材，能有效促進傷口癒合，並避免移除更換時因沾黏導致的傷害。
