PROBLEM TO BE SOLVED: To provide a negative pressure treatment apparatus 10 and a control method for the negative pressure treatment apparatus 10 capable of acquiring the healed condition of a wound W without removing a covering sheet S for covering the wound W and manually or automatically adjustable in the supply amount of washing liquid to the wound W.SOLUTION: The negative pressure treatment apparatus 10 includes a delivery pump 2 delivering a fluid (the washing liquid) supplied through a supply passage 1, into a closed space formed covering the wound W with the covering sheet S, through a delivery tube 3 a suction pump 5 sucking the fluid (the washing liquid and a body fluid) from the closed space through a suction tube 4 while maintaining the closed space in a negative pressure state a suction amount measuring means 7 measuring the suction amount of the fluid sucked through the suction tube 4 an arithmetic means 8 computing the difference between the suction amount measured by the suction amount measuring means 7 and the delivery amount of the fluid delivered by the delivery pump 2 and a display means 9 for displaying the computed value.COPYRIGHT: (C)2012,JPO&INPIT【課題】創傷部Wを覆う被覆シートSを剥がさずとも、創傷部Wの治癒状態を把握でき、創傷部Wへの洗浄液の供給量を手動または自動で調節することができる陰圧治療装置10とその制御方法を提供すること。【解決手段】供給流路1を通じて供給された流体(洗浄液)を、創傷部Wを被覆シートSで覆って形成した閉鎖空間内へ送出チューブ3を通じて送出する送出ポンプ2と、閉鎖空間を陰圧状態に保ちながら閉鎖空間から吸引チューブ4を通じて流体(洗浄液及び体液)を吸引する吸引ポンプ5と、吸引チューブ5を通じて吸引した流体の吸引量を計測する吸引量計測手段7と、吸引量計測手段7により計測した吸引量と送出ポンプ2により送出した流体の送出量との差を算出する演算手段8と、その算出値を表示する表示手段9と、から陰圧治療装置10を構成した。【選択図】図1
