Surgical retractor apparatus for use with a surgical port
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United States of America Patent
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Mar 18, 2008
Grant Date -
Sep 29, 2005
app pub date -
May 5, 2005
filing date -
Jan 27, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved surgical retraction apparatus (and corresponding method of operation) includes a plurality of rigid retraction members disposed about a central axis that move radially with respect to the central axis between a closed state and an open state. In the closed state, the retraction members form a central opening that is adapted to closely fit around the tubular section of a surgical port device. In the illustrative embodiment, a planetary gear train, cable assemblies, lever arms or two annular slotted plates used to control radial movement of the retraction members with respect to the central axis.
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