Self-sealing cannula having integrated seals
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United States of America Patent
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Oct 23, 2012
Grant Date -
Sep 29, 2005
app pub date -
Mar 24, 2004
filing date -
Mar 24, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a surgical access device comprising an elongate tubular member having a working channel and a proximal end and a distal end, a septum seal integrally formed at the distal end of the tubular member, and a zero seal disposed at the distal end of the tubular member and distal to the septum seal, the zero seal being sized and configured to seal when no instrument is in place within the working channel of the tubular member, and the zero seal being coupled to the septum seal The zero seal may be a duckbill seal having opposing lip portions separated by a slit portion. The opposing lip portions are coated with or attached to a soft or occlusive material.
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