| 摘要 |
PROBLEM TO BE SOLVED: To determine the capacity of pipe systems while a patient is kept connected to the pipe systems in respiration care. SOLUTION: While a specified pressure is maintained in the pipe systems 8, 10, 14, 16 when the flow rate to the patient 4/from the patient 4 is nearly zero, particularly during the time of a inhalation halt or expiration halt, the prescribed flow rate of a first gas is added to these pipe systems 8, 10, 14, 16 and from when the first gas begins to flow out of the pipe systems 8, 10, 14, 16 is determined. The capacity of the added first gas forming the capacity of the pipe systems 8, 10, 14, 16 is determined.
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