Tracheostoma valves
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United States of America Patent
Stats
-
Apr 15, 1986
Grant Date -
N/A
app pub date -
Nov 26, 1984
filing date -
Nov 26, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tracheostoma valve assembly for use with a tracheostomy tube or a speech prosthesis device includes a tubular housing structure containing a spring biased main valve which, during normal vegetative breathing, will remain open, and which, during normal air flow associated with speech, will close. The valve assembly includes a separate external relief valve which is closed during normal vegetative breathing and speaking and which opens to release the increased air pressure within the tubular housing resulting from a substantially increased air pressure within the valve assembly and automatically closes when the air pressure is reduced in the valve assembly.
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