Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent
1997-04-03
1999-03-23
Weiss, John G.
Surgery
Respiratory method or device
Face mask covering a breathing passage
12820623, 12820625, 12820614, A62B 1808
Patent
active
058846247
ABSTRACT:
An improved flexible respiratory mask facial seal, as well a respiratory mask incorporating such seal. The facial seal comprises an annular member including a peripheral sidewall bounded by an inner end and an outer end generally opposite the inner end. The inner end is adapted for attachment to the shell or body portion of a respiratory mask and the outer end defines a contoured sealing surface adapted for confronting sealing engagement with a user's face. The annular member is formed of a gel substance possessing resilience characteristics corresponding to those of human fat tissue. Preferably, the annular member is encapsulated in a thin, pliable, membranous covering to enhance the durability and washability of the facial seal. Because the facial seal simulates the resiliency of human fat tissue, the user experiences the sensation of a natural substance against his skin when the mask is donned.
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Barnett Shari S.
Handke Patrick M.
Sabo Kristine K.
Scarberry Eugene N.
Respironics Inc.
Srivastava V.
Weiss John G.
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