Cannula for receiving surgical instruments
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Aug 20, 1998
filing date -
Aug 20, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A cannula (10) receives surgical instruments (120) for performing a surgical procedure on a body (130). The cannula (10) comprises a tube structure (12) defining a passage (16) through which the surgical instruments (120) are inserted into the body (130). The tube structure (12) has a proximal end (20) and a distal end (62). The tube structure (12) includes an expandable portion (40) for enabling an increase in the cross-sectional area of the passage (16) at the distal end (62). The expandable portion (40) of the tube structure (12), when expanded, has a conical configuration.
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