This invention regards the device and method of pleural cavity dorenaji for the patient who possesses the pneumothorax. According to this invention, the vacuum is generated in the pleurum cavity of the patient making use of the aspirator. In order to adjust the degree of vacuum on the basis of objective standard, it decides the suitable size measurable quantity of the pneumothorax, following the degree of vacuum which occurs by the aspirator to aforementioned size measurable quantity, it controls. Especially, this invention regards the adaptation algorithm which possesses the process below: (A) the process which decides the first value of size measurable quantity of the pneumothorax (process 33) (B) just the first finite difference value the process which changes the degree of vacuum (process 36) (The process which decides the 2nd value of size measurable quantity c) first waiting period later (process 38) When (d) 2nd measurable quantity is larger than the first measurable quantity, just the 2nd finite difference value which possesses the opposite mark the process which changes the degree of vacuum (process 40) (E) after the 2nd waiting period process (a) - (d) the process which is repeated.本発明は、気胸を有する患者のための胸腔ドレナージの装置および方法に関する。本発明によると、吸引装置を用いて、患者の胸膜腔中で真空を発生させる。客観的基準に基づいて真空度を調節するために、気胸の適当なサイズ測定値を決定し、吸引装置によって発生された真空度を前記サイズ測定値にしたがって制御する。特に、本発明は、以下の工程を有する適応アルゴリズムに関する:(a)気胸のサイズ測定値の初回の値を決定する工程(工程33);(b)初回の差分値だけ真空度を変化させる工程(工程36);(c)初回の待機期間後にサイズ測定値の2回目の値を決定する工程(工程38);(d)2回目の測定値が初回の測定値より大きい場合、反対の符号を有する2回目の差分値だけ真空度を変化させる工程(工程40);(e)2回目の待機期間後に工程(a)~(d)を反復する工程。
