Optical trocar visualization system and apparatus

A seal assembly for use with a surgical instrument, the seal assembly comprising:

• a return spring including a collar portion and a plurality of spokes, the plurality of spokes extending radially outward from the collar portion;
• and
• a septum seal engaged with the return spring, the septum seal including an annular wall, an orifice and a peripheral seal extending proximally of and in contact with a proximal edge of the collar portion of the return spring, a proximal-most edge of the peripheral seal positioned proximally of a proximal-most portion of each spoke of the plurality of spokes, the peripheral seal extending radially outwardly and proximally from an upper portion of the annular wall such that the peripheral seal and the annular wall form an obtuse angle, the orifice configured to provide a seal about a portion of an instrument inserted through the orifice,
• wherein the plurality of spokes of the return spring is configured to bias the septum seal.