PROBLEM TO BE SOLVED: To provide a wound treatment device capable of preventing the leakage of a wound part sealed by a negative pressure while being mounted on a patient, so that a therapeutic effect of a negative pressure closure therapy can be reliably obtained.SOLUTION: A wound treatment device comprises a covering material formed with a liquid absorption hole, to which a liquid absorption pipe for liquid recovery is connected. Said covering material includes: an inner peripheral adhesion region arranged around the whole circumference of said liquid absorption hole and an outer peripheral adhesion region positioned around said inner peripheral adhesion region. Said inner peripheral adhesion region and said outer peripheral adhesion region are formed as independent adhesion regions.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】患者に装着した状態において陰圧に密閉された創傷部のリークを防止することができ、これによって陰圧閉鎖療法の治療効果を確実に得ることが可能な創傷治療装置を提供する。【解決手段】液体回収用の吸液管が接続される吸液孔が設けられた被覆材を有し、前記被覆材は、前記吸液孔の全周を取り囲んで配置された内周密着領域と、当該内周密着領域の周囲に位置する外周密着領域とを備え、前記内周密着領域と前記外周密着領域とは、独立した密着領域として設けられている創傷治療装置。【選択図】図1