Patent ID: 8821392

Claim:
A surgical retention port, comprising: a long pointed instrument having a shaft defining a longitudinal axis, a distal tip capable of dilating an incision, a proximal handle, and an first interface mechanism; a hollow inner cannula extending about said long pointed instrument with said long pointed instrument movable longitudinally relative to said inner cannula, said inner cannula having a distal end and a second interface mechanism, said second interface mechanism for engaging with said first interface mechanism of said long pointed instrument such that rotation of said long pointed instrument causes rotation of said hollow inner cannula; a plurality of radially extendible fingers coupled to said distal end of said hollow inner cannula, each of said radially extendible fingers having a pivot portion and an extending portion and a pivot axis parallel said longitudinal axis; and a hollow outer cannula having a proximal end, a distal end defining a periphery and a plurality of windows, said distal end including a plurality of bars between said windows, wherein in a first configuration, said plurality of radially extendible fingers assume a collapsed arrangement with said extending portions at least partially contained within said plurality of windows and substantially within said periphery, and in a second configuration, said plurality of radially extendible fingers assume an opened configuration with said extending portions extending radially through said plurality of windows and beyond said periphery in a manner substantially perpendicular to said longitudinal axis.