It is wound by the limb of the patient, is connected by the 1st cuffs port and airtightness, although being the blockade detection device of taniketsutoshisutemu for dual port type operation which includes with the 2nd cuffs port which at the same time becomes independent from the aforementioned 1st cuffs port and taniketsutokahu and the taniketsuto device which includes the compressed section which is connected to airtightness, the aforementioned taniketsuto device, the description above 1st and installation and removal being connected by the aforementioned 2nd cuffs port unrestrictedly, establishes the 1st and 2nd air duct with aforementioned taniketsutokahu and the aforementioned taniketsuto device, deals with surgically over the period of suitable length inside the aforementioned cuffsIn order to indicate pressure the aforementioned 1st air duct pressure inside pressure perception expedient and the aforementioned cuffs which have led in order to control in the value which is close to standard pressure level the aforementioned 2nd air duct the air pressure vibration is introduced to the aforementioned 1st air duct during pressure control means and the blockade detection period which have led, pressure inside the aforementioned 2nd air duct during the aforementioned blockade detection period is watched, at the same time, when pressure fluctuation inside aforementioned 2nd air duct is not inspected during the aforementioned blockade detection period, the blockade alarm is generatedIt includes with the blockade sensing station of for the sake of, the blockade detection device of taniketsutoshisutemu for dual port type operation.患者の肢部に巻き付けられ、第1のカフポートと気密に接続され、かつ前記第1のカフポートから独立した第2のカフポートと気密に接続された加圧部を含むタニケットカフとタニケット装置とを含むデュアルポート式手術用タニケットシステムの閉塞検出装置であって、前記タニケット装置は、前記第1および前記第2のカフポートに着脱自在に結合されて前記タニケットカフと前記タニケット装置との間に第1および第2の空気通路を確立し、外科処置を行うのに適当な長さの期間にわたり前記カフ内の圧力を表示するために前記第1の空気通路と通じている圧力感知手段と、前記カフ内の圧力を基準圧力レベルに近い値に制御するために前記第2の空気通路と通じている圧力制御手段と、閉塞検出期間中に前記第1の空気通路へ空気圧力振動を導入し、前記閉
