| 摘要 |
PROBLEM TO BE SOLVED: To provide an access port which can be positioned with relative ease and with less inconvenience, and an associated introducer mechanism. SOLUTION: A surgical portal assembly includes a portal member adapted for positioning within a tissue tract and defining a longitudinal axis with leading and trailing ends. The portal member includes longitudinal port for passage of an object and a compressible material and are adapted to transition between a first expanded condition and a second compressed condition. The first condition facilitates securing of the portal within the tissue tract and is in substantial sealed relation with tissue surfaces defining the tissue tract, and the second condition facilitates at least partial insertion of the portal within the tissue tract. The elongated member extending through the longitudinal port and mechanically couplable to the portal member adjacent the leading end thereof, is adapted to move through the longitudinal port in a trailing direction to exert a compressive force adjacent the leading end to cause the portal member to transition toward the compressed condition. COPYRIGHT: (C)2011,JPO&INPIT
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