Abstract: A mixed gas separation method includes a step of supplying a mixed gas to the separation membrane and causing a gas with high permeability in the mixed gas to permeate through the separation membrane. In the step, when ?P is a difference between a gas pressure on the primary side of the separation membrane, i.e., a feed pressure, and a gas pressure on the secondary side of the separation membrane, i.e., a permeate pressure, and A is a Joule-Thomson coefficient, a difference ?T between a gas temperature on the primary side of the separation membrane, i.e., a feed temperature, and a gas temperature on the secondary side of the separation membrane, i.e., a permeate temperature, is made less than 90% of A·?P by setting the Nu number in the mixed gas to be greater than or equal to 2 and less than or equal to 10.

Abstract: A treatment system comprises a first power supply apparatus and a second power supply apparatus each connectable with a surgical device and a neutral electrode, the first power supply apparatus being electrically connected with the second power supply apparatus, the treatment system treating a living tissue while performing transmission and reception of information between the first and second power supply apparatuses, wherein, in a case where the neutral electrode is connected to only one of the first and second power supply apparatuses, an output of the surgical device connected to the second power supply apparatus is inhibited during an output of the surgical device connected to the first power supply apparatus, and the output of the surgical device connected to the first power supply apparatus is inhibited during the output of the surgical device connected to the second power supply apparatus.

Abstract: A treatment system comprises a first power supply apparatus and a second power supply apparatus each connectable with a surgical device and a neutral electrode, the first power supply apparatus being electrically connected with the second power supply apparatus, the treatment system treating a living tissue while performing transmission and reception of information between the first and second power supply apparatuses, wherein, in a case where the neutral electrode is connected to only one of the first and second power supply apparatuses, an output of the surgical device connected to the second power supply apparatus is inhibited during an output of the surgical device connected to the first power supply apparatus, and the output of the surgical device connected to the first power supply apparatus is inhibited during the output of the surgical device connected to the second power supply apparatus.

Abstract: A surgical operation system has a power supply apparatus that generates a high frequency signal by a first signal producing section, a converter that performs conversion into other energy by supply of the second signal, a surgical treatment instrument including a pair of electrodes, a cable that connects the surgical treatment instrument to the power supply apparatus, a measurement section that measures a high frequency voltage and a high frequency current for a living tissue to which the high frequency signal is supplied via the cable and the surgical treatment instrument, a calculation section that calculates an electrostatic capacity value of the cable and the surgical treatment instrument from the high frequency voltage and the high frequency current that are measured, a determination section that determines whether or not the calculated electrostatic capacity value is smaller than a threshold value for detecting wire breakage, and a control section that performs output control of the high frequency signa