A valve assembly configured and adapted to selectively control a flow of pressurized fluid from a source to trocar assemblies, the valve assembly comprising: (a) a first coupling configured and adapted to couple to a primary trocar assembly for directing pressurized fluid thereto; (b) a second coupling configured and adapted to couple to a secondary trocar assembly for directing pressurized fluid thereto; (c) a third coupling configured and adapted to couple to a source of pressurized fluid for directing pressurized fluid from the source to the first and second couplings (20, 26); and (d) at least one valve member adapted and configured to be operable in at least first and second operating positions, characterized in that: (i) the first operating position directs pressurized fluid from the source to the coupled primary trocar assembly while preventing pressurized fluid from the source from flowing to at least the coupled secondary trocar assembly, and (ii) the second operating position directs pressurized fluid from the source to the coupled primary trocar assembly and to at least the coupled secondary trocar assembly, wherein: the first coupling defines three passageways (21a, 21b, 21c), the second coupling defines two passageways (27a, 27b), the third coupling defines three passageways (33a, 33b, 33c), and the valve assembly further comprises a first elongate tube defining three passageways (22a, 22b, 22c), wherein the three passageways of the first elongate tube are configured to couple the primary trocar assembly with the three passageways (21a, 21b, 21c) of the first coupling. (a) a first coupling configured and adapted to couple to a primary trocar assembly for directing pressurized fluid thereto; (b) a second coupling configured and adapted to couple to a secondary trocar assembly for directing pressurized fluid thereto; (c) a third coupling configured and adapted to couple to a source of pressurized fluid for directing pressurized fluid from the source to the first and second couplings (20, 26); and (d) at least one valve member adapted and configured to be operable in at least first and second operating positions, characterized in that: (i) the first operating position directs pressurized fluid from the source to the coupled primary trocar assembly while preventing pressurized fluid from the source from flowing to at least the coupled secondary trocar assembly, and (ii) the second operating position directs pressurized fluid from the source to the coupled primary trocar assembly and to at least the coupled secondary trocar assembly, wherein: the first coupling defines three passageways (21a, 21b, 21c), the second coupling defines two passageways (27a, 27b), the third coupling defines three passageways (33a, 33b, 33c), and the valve assembly further comprises a first elongate tube defining three passageways (22a, 22b, 22c), wherein the three passageways of the first elongate tube are configured to couple the primary trocar assembly with the three passageways (21a, 21b, 21c) of the first coupling. (i) the first operating position directs pressurized fluid from the source to the coupled primary trocar assembly while preventing pressurized fluid from the source from flowing to at least the coupled secondary trocar assembly, and (ii) the second operating position directs pressurized fluid from the source to the coupled primary trocar assembly and to at least the coupled secondary trocar assembly, wherein: the first coupling defines three passageways (21a, 21b, 21c), the second coupling defines two passageways (27a, 27b), the third coupling defines three passageways (33a, 33b, 33c), and the valve assembly further comprises a first elongate tube defining three passageways (22a, 22b, 22c), wherein the three passageways of the first elongate tube are configured to couple the primary trocar assembly with the three passageways (21a, 21b, 21c) of the first coupling. the first coupling defines three passageways (21a, 21b, 21c), the second coupling defines two passageways (27a, 27b), the third coupling defines three passageways (33a, 33b, 33c), and the valve assembly further comprises a first elongate tube defining three passageways (22a, 22b, 22c), wherein the three passageways of the first elongate tube are configured to couple the primary trocar assembly with the three passageways (21a, 21b, 21c) of the first coupling.