Abstract: A cap assembly of a trocar system for endoscopic surgery includes a valve housing with an opening formed in line with an axis of the valve housing. The opening being defined by axially extending sidewalls. The cap also includes a valve positioned adjacent the opening of the valve housing. The valve includes a valve body with an annular-shaped valve opening for receiving elongate tools with differing diameters, so that a seal is maintained between the valve opening and any of the plurality of elongate tools. The valve body has a layer of a fabric material, a layer of elastomeric material, and a periphery valve section connected to and extending radially outwardly from peripheries of the valve body. The periphery valve section has rib members that extend radially a distance between an outer perimeter of the valve body and an outer perimeter of the periphery valve section.

Abstract: A septum valve having peripheries thereof adapted to be fixedly positioned in a valve housing of a trocar system is provided. The septum valve includes a valve body having an opening positioned in a medial portion of the valve body and adapted to individually and separately receive a plurality of different elongate tools each having a different diameter therethrough so that when any one of the plurality of elongate tools is positioned through the valve opening a septum seal is maintained between peripheries of the valve body surrounding the valve opening and abuttingly contacting outer peripheries of the any one of the plurality of elongate tools extending therethrough. The valve body has first and second layers of a fabric material and a layer of elastomeric material positioned between and contacting each of the first and second layers of the fabric material.