PROBLEM TO BE SOLVED: To provide an artificial respirator that can effectively give artificial respiration while reducing the consumption of medical gas other than oxygen.SOLUTION: An artificial respirator for giving gas, in which oxygen and medical gas other than oxygen are mixed, to a patient as inhalation gas includes: a first gas supply device for supplying a gas containing oxygen an intratracheal tube path inserted into and indwelled in a trachea of the patient an extratracheal tube path for connecting the first gas supply device with the intratracheal tube path to introduce the gas containing oxygen from the first gas supply device to the patient and a second gas supply device connected to the extratracheal tube path or the intratracheal tube path, which supplies mixed gas of oxygen and the medical gas other than oxygen to the extratracheal tube path or the intratracheal tube path.COPYRIGHT: (C)2013,JPO&INPIT【課題】酸素以外の医薬ガスの消費量を低減できつつも効果的な人工呼吸が可能な人工呼吸器を提供する。【解決手段】酸素と酸素以外の医薬ガスとを混合したガスを吸気ガスとして患者に供与する人工呼吸器であって、酸素を含むガスを供給する第1のガス供給装置と、患者の気管に挿入され、留置される気管内管路と、第1のガス供給装置と気管内管路とを接続し、患者に第1のガス供給装置からの酸素を含むガスを導くための気管外管路と、気管外管路または気管内管路に接続され、酸素と酸素以外の医薬ガスとの混合ガスを気管外管路または気管内管路に供給する第2のガス供給装置とを備える、人工呼吸器。【選択図】図1
