| 摘要 |
PROBLEM TO BE SOLVED: To obtain an inhalation tube which is simply and safely used for plural functions without requiring special or additional wiring. SOLUTION: A bottleneck part 28 is arranged between the distal end 6A of the inhalation tube 6 and an opening 50. A first channel 26 is extended nearly in parallel with a gas flow channel 18 within a wall 19 and opens to the channel 18 between the distal end 6A of the tube 6 and the part 28. A second channel 24 is extended nearly in parallel with the channel 18 within the wall 19 and opens to the channel 18 between the part 28 of the opening 50. Then, the channels 24 and 26 can be connected to pressure gages for deciding the flow rate and the pressure of a gas flow. |
