SPEAKING VALVE WITH SATURATION INDICATION
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United States of America Patent
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Issued Date -
Jul 10, 2014
app pub date -
Jan 10, 2013
filing date -
Jan 10, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A speaking valve includes a hollow body configured to be secured to a connector of a tracheostomy system disposed in a patient. The speaking valve further includes a cap that houses a valve member, which enables the speaking valve to act as a one-way check valve. The valve member, hollow body, or other components of the valve may include a material that undergoes a chemical changed when exposed to moisture, i.e., a hydrosensitive material. Particularly, the hydrosensitive material may exhibit a color change when exposed to moisture. As such, the hydrosensitive material may be useful in providing a visual indication of the saturation and/or moisture level of the speaking valve.
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