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新しい直腸シールデバイスを用いた結腸への送気と視覚化管理
Julia Ding1,2,3, Nabil Shalabi1,3, Colin Tracey3
1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
iGIE : innovation, investigation and insights
|February 6, 2026
まとめ
大腸内視鏡検査中の不十分な送気は一般的です。新しい直腸シールデバイスであるRECSEALは、ガス漏れを効果的に管理し、処置中の結腸への送気と視覚化を改善します。
科学分野:
- 消化器病学
- 医療機器開発
- 内視鏡検査
背景:
- 大腸内視鏡検査中の不十分な送気は、ガス漏れによって引き起こされ、管腔の視覚化を妨げます。
- 消化器内科医を対象とした調査では、介入を必要とする不十分な送気の発生率は6.6%であることが明らかになりました。
研究 の 目的:
- 新規直腸シールデバイスを開発することにより、大腸内視鏡検査における不十分な送気の問題に対処すること。
- RECSEALデバイスの送気漏れ管理および視覚化改善における有効性を評価すること。
主な方法:
- 安全な挿入と肛門管への保持のために設計されたシリコン製直腸シールデバイスであるRECSEALの開発。
- ベンチ、体外(模擬的な肛門緊張低下)、および生体内(ブタモデル)の設定で圧力センサーを使用してRECSEALを評価しました。
主要な成果:
- RECSEALは、健常および損傷した肛門括約筋モデルの両方において、対照群(0.3-3.6 mm Hg)と比較して有意に高い結腸内圧(32-33 mm Hg)を維持しました(P < .0001)。
- このデバイスは、虚脱した結腸における管腔視覚化の改善を示しました。
- RECSEALの実現可能性は、生体内のブタモデルで確認されました。
結論:
- 柔軟なRECSEALは、結腸内の腔内圧を効果的に増加させます。
- RECSEALは、大腸内視鏡検査中の結腸への送気と視覚化を強化する可能性を示しています。
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