A system for use in a surgical procedure, comprising: a) a trocar having a substantially tubular inner wall and a substantially tubular outer wall, the trocar having a proximal end and a distal end, the inner wall defining a central longitudinal lumen to provide access through the trocar, the trocar including, in nested configuration: i) an outer cannula; ii) an inner cannula disposed within the outer cannula, the inner cannula defining the central longitudinal lumen at least in part to provide access through the trocar; iii) a tube center component disposed within the outer cannula; and iv) a ring jet assembly disposed within the outer cannula, wherein the tube center component and ring jet assembly interfit to define a plurality of nozzle passages disposed annularly about a central longitudinal axis defined by the trocar, the tube center component and ring jet assembly being adapted and configured to define a plenum capable of receiving a pressurized gas, said plenum being in fluid communication with said nozzle passages, said nozzle passages being adapted and configured to issue high speed jets substantially parallel to a longitudinal axis of the trocar toward the distal end of the trocar; and b) an instrument guide disposed in the central longitudinal lumen, the instrument guide having a proximal end, a distal end, and a plurality of channels defined through the instrument guide from the proximal end to the distal end, each channel being adapted and configured to receive a surgical instrument, characterized in that the inner cannula and the outer cannula each define a side port (128, 118), the side ports (118, 128) being aligned with each other to define a channel through the trocar from an outer surface of the outer cannula through the inner cannula into the central longitudinal lumen, the channel being angled with respect to the central longitudinal axis, the channel being adapted and configured to receive an instrument therethrough and into the central longitudinal lumen. a) a trocar having a substantially tubular inner wall and a substantially tubular outer wall, the trocar having a proximal end and a distal end, the inner wall defining a central longitudinal lumen to provide access through the trocar, the trocar including, in nested configuration: i) an outer cannula; ii) an inner cannula disposed within the outer cannula, the inner cannula defining the central longitudinal lumen at least in part to provide access through the trocar; iii) a tube center component disposed within the outer cannula; and iv) a ring jet assembly disposed within the outer cannula, wherein the tube center component and ring jet assembly interfit to define a plurality of nozzle passages disposed annularly about a central longitudinal axis defined by the trocar, the tube center component and ring jet assembly being adapted and configured to define a plenum capable of receiving a pressurized gas, said plenum being in fluid communication with said nozzle passages, said nozzle passages being adapted and configured to issue high speed jets substantially parallel to a longitudinal axis of the trocar toward the distal end of the trocar; and i) an outer cannula; ii) an inner cannula disposed within the outer cannula, the inner cannula defining the central longitudinal lumen at least in part to provide access through the trocar; iii) a tube center component disposed within the outer cannula; and iv) a ring jet assembly disposed within the outer cannula, wherein the tube center component and ring jet assembly interfit to define a plurality of nozzle passages disposed annularly about a central longitudinal axis defined by the trocar, the tube center component and ring jet assembly being adapted and configured to define a plenum capable of receiving a pressurized gas, said plenum being in fluid communication with said nozzle passages, said nozzle passages being adapted and configured to issue high speed jets substantially parallel to a longitudinal axis of the trocar toward the distal end of the trocar; and b) an instrument guide disposed in the central longitudinal lumen, the instrument guide having a proximal end, a distal end, and a plurality of channels defined through the instrument guide from the proximal end to the distal end, each channel being adapted and configured to receive a surgical instrument,