医療ガス配管酸素供給圧上昇に起因した麻酔用人工呼吸器の内部チューブ破損事例

• 加藤 啓一

  日本赤十字社医療センター麻酔科

• 種田 益造

  日本赤十字社医療センター麻酔科

• 柄澤 俊二

  日本赤十字社医療センター麻酔科

• 管野 敏夫

  群馬大学医学部麻酔•蘇生学教室

• 加藤 信也

  日本医科大学医学部麻酔科学教室

書誌事項

タイトル別名

• Case Report: Abnormal Increase of Central Supply Gas Pressure Damaged an Internal Tube of an Anesthesia Ventilator.

抄録

A mechanical deficiency in an anesthesia ventilator was identified during a preoperative machine check. A pressure regulator in a cold evaporator (CE) system and a higher pressure regulator in an anesthesia ventilator malfunctioned simultaneously and induced leakage in the ventilator circuit. The pressure regulator in the CE system failed probably due to a foreign body in the valve seat, which resulted in increased pressure in the supply system (from 4.0±0.5kgf•(cm²)^-1 to 6.3kgf•(cm²)^-1). In addition to this, the higher pressure regulator in the ventilator was also damaged and, consequently, non-reduced pressure was loaded into the ventilator circuit. As the circuit tubes were supposed to take lower pressures, only it eventually ruptured and leakage started. This accident indicates the importance of preoperative anesthesia machine checks, regular preventive maintenance, periodical overhauls and safety measures against unexpected increases in central supply pressures.

収録刊行物

• 日本臨床麻酔学会誌

  日本臨床麻酔学会誌 19 (9), 579-583, 1999

  日本臨床麻酔学会

キーワード

• 中央配管システム
• 圧力調整器
• 麻酔用人工呼吸器リーク

詳細情報

• CRID: 1390282679736725632
• NII論文ID: 130003581650
• NII論文ID: 10010153795
• NII書誌ID: AN00330159
• DOI: 10.2199/jjsca.19.579
• ISSN: 13499149
• ISSN: 02854945
• Web Site: https://search.jamas.or.jp/link/ui/2000106567
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可