Spring-ball valve for voice prosthesis
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United States of America Patent
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-
N/A
Issued Date -
Sep 30, 2004
app pub date -
Feb 19, 2004
filing date -
Dec 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A voice prosthesis that is formed of a soft, elastomeric body containing a spring loaded ball valve, preferably a non-impervious, smooth ball such as a ruby ball biased by a flat helical spring against a seat mounted in a rigid cartridge. An insertion device includes a handle with expandable tip which enters and locks within the cartridge.
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Family
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Cited Art Landscape
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