PROBLEM TO BE SOLVED: To provide a medicinal gas administration device reducing the useless consumption of a medicinal gas and considering safety and environments.SOLUTION: The medicinal gas administration device is for introducing the medicinal gas to a gas flowing through a respiratory line of an artificial respirator 2. By intermittently introducing the medicinal gas in linkage with switch of the inspiratory phase and expiratory phase of artificial respiration in the artificial respirator 2, the medicinal gas is introduced matched with the expiratory phase of the artificial respiration. Consequently, the medicinal gas uselessly discharged conventionally is saved, the consumption of the medicinal gas is substantially reduced, a medicinal gas amount to be discharged to a treatment environment is substantially reduced, and the health damage to a medical staff and environmental destruction such as global warming are prevented.COPYRIGHT: (C)2011,JPO&INPIT【課題】医薬性ガスの無駄な消費を削減し、安全や環境への配慮も可能な医薬性ガス投与装置を提供する。【解決手段】人工呼吸器2の呼吸ラインを流れるガスに医薬性ガスを導入する医薬性ガス投与装置であって、上記医薬性ガスの導入を、人工呼吸器2における人工呼吸の呼気相と吸気相の入れ替わりに連動させて間歇的に行うことにより、人工呼吸の吸気相に合わせた医薬性ガスの導入が可能となり、従来無駄に排出されていた医薬性ガスを節減して医薬性ガスの消費量を大幅に削減し、治療環境に排出する医薬性ガス量を大幅に減らし、医療関係者の健康被害や地球温暖化等の環境破壊を防止できる。【選択図】図1
