JP4871169B2 - 気管支喘息体感マスク - Google Patents
気管支喘息体感マスク Download PDFInfo
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- JP4871169B2 JP4871169B2 JP2007046414A JP2007046414A JP4871169B2 JP 4871169 B2 JP4871169 B2 JP 4871169B2 JP 2007046414 A JP2007046414 A JP 2007046414A JP 2007046414 A JP2007046414 A JP 2007046414A JP 4871169 B2 JP4871169 B2 JP 4871169B2
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- mask
- asthma
- vent
- ventilation
- air valve
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Description
すなわち、喘息の発作時は、気管支の筋肉が収縮し、気道が閉塞状態になるが、その症状は息をすうことはできるが、はくことができない状態となり、極めて苦しいものである。
かかる観点から、マスク内からマスク外への通気を遮断するエアバルブと、通気量を調節できる通気孔との両方を有するマスクを作製し、該通気孔の通気量を調節すれば、簡便に、息をすった時には抵抗がなく、息をはいた時に強い抵抗を生じ、喘息発作が体感できることを見出し、本発明を完成するに至った。
図1、2及び3に示すマスクを製造した。得られたマスクを装着し、ダイヤルをレベル3に通気孔(B)の通気量を調節し、ボランティアに10分間呼吸してもらった。その結果、1分後、5分後、10分後と徐々に息をはくことに対する抵抗が上昇し、息をするのが苦しいという喘息の症状が体感できた。なお、指先の血中飽和酸素濃度(経皮的酸素飽和度:SpO2)をパルスオキシメーターにより測定したところ、装着前に比べて2〜6%低下していた。なお、SpO2は95〜100%が正常であり、95%未満で酸素吸入が必要である。
ダイヤルをレベル4に通気孔(B)を調節する以外は、実施例1と同様に呼吸したところ、さらに短時間で喘息症状が体感できた。
11:エアバルブ外側部材
12:逆止め弁
13:エアバルブ内側部材
20:通気量調節機構
21:通気孔
22:通気量調節部材
23:通気孔調節部外側部材
30:面体
40:マスク本体
Claims (1)
- マスク外からマスク内へ通気するがマスク内からマスク外へ通気させないエアバルブを備えた通気孔と、マスクを装着して呼吸を続けると、徐々に息をすうことはできるがはくことが困難になるように、通気量を調節する機構を備えた、前記エアバルブを有さない通気孔とを有し、当該2種の通気孔以外の部分が非通気性であり、顔面に密着し、少なくとも鼻及び口を覆う面体を有することを特徴とする気管支喘息体感マスク。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2007046414A JP4871169B2 (ja) | 2007-02-27 | 2007-02-27 | 気管支喘息体感マスク |
Applications Claiming Priority (1)
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JP2007046414A JP4871169B2 (ja) | 2007-02-27 | 2007-02-27 | 気管支喘息体感マスク |
Publications (2)
Publication Number | Publication Date |
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JP2008206727A JP2008206727A (ja) | 2008-09-11 |
JP4871169B2 true JP4871169B2 (ja) | 2012-02-08 |
Family
ID=39783547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007046414A Active JP4871169B2 (ja) | 2007-02-27 | 2007-02-27 | 気管支喘息体感マスク |
Country Status (1)
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JP (1) | JP4871169B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4627599Y1 (ja) * | 1967-08-28 | 1971-09-22 | ||
JPH02121049A (ja) * | 1988-10-31 | 1990-05-08 | Nec Corp | 入出力装置 |
NZ250105A (en) * | 1992-11-09 | 1996-07-26 | Monaghan Canadian Ltd | Inhalator mask; one-way valve opens upon exhalation |
JP2004057750A (ja) * | 2002-07-26 | 2004-02-26 | Makkusu:Kk | 粘着フィルター式マスク |
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2007
- 2007-02-27 JP JP2007046414A patent/JP4871169B2/ja active Active
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JP2008206727A (ja) | 2008-09-11 |
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