Surgical retention port and method of use

A method, comprising:

• a) obtaining a surgical retention port having a longitudinal axis and comprising (i) a hollow inner cannula extending about a long pointed instrument with said long pointed instrument movable longitudinally relative to said inner cannula, (ii) 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, each of said pivot portions rotating about a pivot axis circumferentially displaced from the pivot axes of the other pivot portions, each of said pivot axes extending parallel to said longitudinal axis, and (iii) 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 inner cannula is in a first rotational orientation relative to said outer cannula along said longitudinal axis and 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 inner cannula rotationally displaced relative to said outer cannula into a second rotational orientation along and said plurality of radially extendible fingers assume an opened arrangement with said extending portions extending radially through said plurality of windows and beyond said periphery in a manner substantially perpendicular to said longitudinal axis;
• b) with said fingers in said collapsed arrangement, pushing said surgical retention port into an incision of a patient such that said distal end of said inner cannula, said distal end of said outer cannula, and said fingers are located inside the patient;
• c) first rotating said inner and outer cannulas relative to each other from said first rotational orientation to said second rotational orientation to force said fingers into said opened arrangement;
• d) inserting a surgical instrument through said inner cannula and manipulating the surgical instrument;
• e) removing the surgical instrument from said inner cannula;
• f) second rotating said inner and outer cannulas relative to each other from said second rotational orientation to said first second rotational orientation to force said fingers into said collapsed arrangement;
• and
• h) withdrawing said surgical retention port from the incision.