A surgical obturator assembly , which comprises: an obturator housing ; an elongate obturator member defining a longitudinal obturator axis (m) and proximal and distal ends, the obturator member distally extending from the obturator housing and being configured for at least partial introduction within a cannula, the obturator member including an obturator wall defining an obturator lumen and having a penetrating member configured for penetrating tissue, the penetrating member having at least one fluid opening therethrough; a cap mounted to the obturator housing , the cap including a cap lumen in longitudinal alignment with the obturator lumen , the cap lumen and the obturator lumen configured for reception of a laparoscope , and defining an isolated fluid passage extending along the longitudinal axis (m) to the penetrating member , said cap further including an O-ring seal adjacent of a cap base to establish a seal between the cap and an inner surface of a connector wall of a connector , said cap further including a scope or instrument retention assembly having a retention mount and a scope retention member couplable to the retention mount wherein the retention mount includes a plurality of mounting recesses which receive mounting tabs of the cap to connect the retention mount to the cap , wherein the scope retention member is secured between the retention mount and a proximal ledge of the cap wall ; and an insufflation port mounted to the cap proximal of the obturator housing and defining a port channel in fluid communication with the fluid passage such that insufflation fluids introduced within the port channel are conveyed through the fluid passage and exit the at least one fluid opening of the penetrating member . an obturator housing ; an elongate obturator member defining a longitudinal obturator axis (m) and proximal and distal ends, the obturator member distally extending from the obturator housing and being configured for at least partial introduction within a cannula, the obturator member including an obturator wall defining an obturator lumen and having a penetrating member configured for penetrating tissue, the penetrating member having at least one fluid opening therethrough; a cap mounted to the obturator housing , the cap including a cap lumen in longitudinal alignment with the obturator lumen , the cap lumen and the obturator lumen configured for reception of a laparoscope , and defining an isolated fluid passage extending along the longitudinal axis (m) to the penetrating member , said cap further including an O-ring seal adjacent of a cap base to establish a seal between the cap and an inner surface of a connector wall of a connector , said cap further including a scope or instrument retention assembly having a retention mount and a scope retention member couplable to the retention mount wherein the retention mount includes a plurality of mounting recesses which receive mounting tabs of the cap to connect the retention mount to the cap , wherein the scope retention member is secured between the retention mount and a proximal ledge of the cap wall ; and an insufflation port mounted to the cap proximal of the obturator housing and defining a port channel in fluid communication with the fluid passage such that insufflation fluids introduced within the port channel are conveyed through the fluid passage and exit the at least one fluid opening of the penetrating member . <EOS>