NPPVマスクからのリーク量とマスク内圧の解析

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  • 水島 岩徳
    学校法人城西医療学園　日本医療科学大学　保健医療学部臨床工学科
  • 中島 章夫
    杏林大学保健学部臨床工学科

書誌事項

タイトル別名
  • Study on amount of leak from NPPV masks and the mask internal pressure
  • NPPV マスク カラ ノ リークリョウ ト マスク ナイアツ ノ カイセキ

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説明

<p>In late years, cases of NPPV (non-invasive positive pressure ventilation therapy) increased. Because we do not need intubation by the breathing management of NPPV, a wearing state to the patient of the NPPV mask is important, and has a big influence on curative effect. In this study, we built the system that measured quantity of leak by the state of the fitting for the mask, and measured the mask internal pressure under the situation that there was leak. This system measured the state of the fitting and the quantity of leak from a mask, and mask internal pressure with a face model.</p><p>We measured quantity of leak in four ways of wearing state about two kinds of masks, but all became the leak rate more than 80%. In addition, the mask internal pressure was shown to maintain positive pressure set in a respirator even if leak existed. Although we were apt to strongly do a fitting because we were afraid of the leak from a mask, we knew that the mask internal pressure could maintain a set point even if leak existed, and the leak did not decrease even if we strongly did a fitting.</p>

収録刊行物

  • 医療機器学

    医療機器学 89 (4), 333-342, 2019

    一般社団法人日本医療機器学会

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