Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent
1995-09-12
1997-04-08
Millin, V.
Surgery
Respiratory method or device
Face mask covering a breathing passage
12820123, 12820222, 12820525, 12820614, 12820621, 12820628, A62D 500
Patent
active
056178492
ABSTRACT:
Respirator 10 has a respirator body 11 that is configured to fit over the nose and mouth of a wearer. A thermochromic material 18 is positioned on the respirator body 11 such that the thermochromic material 18 makes thermal contact with the wearer's face when the respirator 10 is worn. The contact causes the thermochromic material 18 to change color to allow the wearer to determine if a proper fit has been established.
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Barrett Leonard W.
Springett James E.
Griswold Gary L.
Hanson Karl G.
Kirn Walter N.
Millin V.
Minnesota Mining and Manufacturing Company
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