Tracheal cannulas and stents
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United States of America Patent
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-
Feb 9, 1993
Issued Date -
N/A
app pub date -
May 30, 1991
filing date -
Mar 6, 1989
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosure is made of an improvement in the T-shaped tracheal stents and in the tracheal cannulas of the prior art, permitting one to conveniently have a complete and unitary unit including a closure member affixed to the device of the invention. Unidirectional retention sleeves are also described, which may be used in conjunction with the cannulas and the stents of the invention.
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Family
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