Patent ID: 9211140
Filing Date: 2015-12-15
Classification: A61B,A61F

Abstract:
1. A surgical system, comprising: a cannula including an elongate body extending between a proximal end and a distal end, said cannula being defined by a pair of laterally displaceable elongate members, said elongate members being expandable opposite one another in one direction, said elongate members cooperating to define a hollow working channel dynamically expandable from a first, unexpanded configuration, wherein in said first configuration said working channel is substantially uniformly sized and shaped from said proximal end to said distal end of said elongate body; a sheath member extending around said elongate members; a device including a body having a height that is greater than a diameter of said working channel in said first configuration, said body being configured to be inserted in and engage with said working channel to expand said working channel from said first configuration; and wherein said working channel expands from said first configuration upon engagement of said at least one portion of said device with said working channel and returns to said first configuration upon disengagement of said at least one portion of said device with said working channel.