Abstract: A surgical cannula is provided for illuminating a surgical cavity using an optically transparent walled passageway having a working channel. Light from a light source is received by the surgical cannula and is emitted by the walled passageway to illuminate the working channel, such that both tissues accessible via the working channel and tissues surrounding the walled passageway are illuminated.

Abstract: A light guide bender (also referred to as an optical tube bender) is provided including an integrated bending mechanism that allows the surgical tube to be bent to the appropriate length (e.g., matching the retractor height). By bending the tube at an angle, potential obstruction caused by the optical fiber is reduced and the need to create various lengths of optical tubing is also eliminated. In one embodiment, the surgical tube may also include markings designating length of the surgical tube. For example, if 200 mm of surgical tubing is needed, then the marking for 200 mm can be located on the surgical tubing and the tubing can be bent at this location.