Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Ear or nose prosthesis
Patent
1993-10-20
1994-10-18
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Ear or nose prosthesis
623 12, A61F 218, A61F 204
Patent
active
053564308
ABSTRACT:
For treatment of conductive hearing loss due, for example, to serous otitis media, a synthetic bubble is implanted in the hypotympanic cavity to displace fluid allowing free motion of the round window. A thin membrane provides the required degree of compliance, and is substantially impermeable to gases and water vapor, resulting in an extended lifetime. A large molecule inert filler gas may be used, either alone, or with normal gases to provide certain partial inflation states wherein osmotic ingress of smaller molecular gases causes sustained self-inflation of the bubble for a substantial time.
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Burke Elizabeth M.
Green Randall L.
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