| 摘要 |
PROBLEM TO BE SOLVED: To provide a surgical portal for accessing underlying body tissue to permit the introduction of surgical objects in conjunction with a medical procedure. SOLUTION: A surgical access apparatus includes: a housing member; a portal member extending from the housing member and defining a central longitudinal axis; and a constraining mechanism associated with at least one of the housing member and the portal member. The housing member and the portal member define a longitudinal passage therethrough dimensioned to permit passage of an surgical object. The constraining mechanism includes a constraining member dimensioned and positioned to intersect the longitudinal axis. The constraining member is adapted to engage the surgical object and bias the surgical object toward a position radially displaced relative to the central longitudinal axis. COPYRIGHT: (C)2011,JPO&INPIT
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