余剰麻酔ガス汚染とその対策に関する研究 : 東京大学医学部附属病院中央手術部における測定 : III 回復室における汚染の連続記録による検討

概要

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The degress of pollution by nitrous oxide gas in the recovery room in typical operating days were measured and recorded continuously. Although very high levels of pollution were not recorded, values higher than NIOSH published acceptable level of nitrous oxide pollution, 25ppm, were recorded several times a day. But these were vert transitional. Number of patients, that is the main sourse of pollution in the recovery room, present correlated significantly with the levels of pollution.To keep pollution in the recovery room as low as possible, the best conceivable way is to exhaust all expiratory air from patients outside of the operating theater as done in the operating rooms.More conventional way may be just to increase the efficiency of ventilation system, which we think can reduce pollution to reasonable levels.It is important to keep in mind that a small fan, such as we have in the recovery room, cannot be helpful in reducing pollution.
日本医療機器学会の論文
1981-09-01