Trocar and cannula assembly having improved conical valve, and methods related thereto
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United States of America Patent
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Jun 4, 2013
Grant Date -
Apr 14, 2011
app pub date -
Oct 8, 2010
filing date -
Oct 9, 2009
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Abstract
A trocar and cannula assembly with improved conical valve that incorporates a plurality of ribs to restrict and/or otherwise influence valve movement, and a plurality of improved convolutes and bumps to enhance performance characteristics.
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