Voice prosthesis
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United States of America Patent
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-
Jan 23, 2007
Grant Date -
N/A
app pub date -
May 26, 1997
filing date -
May 24, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A voice prosthesis to be mounted in a fistula between trachea and esophagus comprises a spool-shaped element with a through passage and a valve mechanism controlling the connection through said passage and having sealing surfaces which can be pressed against each other, means being provided to produce a magnet force acting between the sealing surfaces to keep said surfaces pressed against each other in the closed position of the valve mechanism.
First Claim
Family
International Classification(s)
Cited Art Landscape
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