Check valve and method for facilitating pressurization of a patient's middle ear
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United States of America Patent
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May 5, 1998
Grant Date -
N/A
app pub date -
Dec 15, 1995
filing date -
Dec 15, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A check valve for providing fluid communication between a patient's middle ear and external auditory canal for improved comfort and hearing. The check valve is configured for permitting fluid to flow from the external auditory canal into the middle ear and for checking fluid flow from the middle ear to the external auditory canal.
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