PROBLEM TO BE SOLVED: To prevent a patient from becoming strained.SOLUTION: A breath assist device 10 includes: an intake tube 12 in which the proximal end is connected with the source 11 that sends off the gas that becomes an intake, and that functions as at least an intake route and a regulating valve 13 that is disposed at the intake route and adjusts the flow of the gas sent off from the source 11. The regulating valve 13 makes a piezo element 22 that is displaced in proportion to the amount of the application of voltage a regulating valve body 21, and opens or shuts a vent hole 20a by that the regulating valve body 21 is displaced.COPYRIGHT: (C)2013,JPO&INPIT【課題】患者に掛かる負担が増加することを防止する。【解決手段】呼吸補助装置10は、呼気となる気体を送り出す供給源11に基端が接続されて、少なくとも吸気経路として機能する吸気管12と、吸気経路上に設けられて、供給源11から送り出される気体の流量を調整する調整弁13と、を備える。調整弁13は、電圧の印加量に応じて変位するピエゾ素子22を調整弁本体21とし、当該調整弁本体21が変位することで通気孔20aを開閉する。【選択図】図7
