Abstract: A cannula assembly having a plurality of outwardly-biased flexible fins capable of inward movement such that the fins converge upon insertion of a trocar device. The fins include a slot formed therein, with a corresponding raised feature on the trocar shaft capable of engaging the slots. Inward movement of the trocar within the cannula lumen causes the fins to converge. An additional embodiment utilizes outwardly-biased flexible fins that lock together in a closed position, with corrugated features in the fin inner surface that contact the trocar shaft such that, upon insertion of the trocar, the fins unlock and splay outward.

Abstract: A system for providing radiation protection is provided that includes a garment that contours to an operator's body. The garment protects the operator from radiation. The garment is supported by a suspension component that reduces a portion of weight of the garment for the operator, the garment including a belt, which includes a release mechanism that offers an entry into the garment. In more specific embodiments, the release mechanism is a quick release that allows the operator to disengage from the garment using a single hand movement. The belt can include at least one flexible joint. The belt opens to allow the operator to enter the garment, and the operator, in entering and exiting the garment, is able to limit his contact to components on or near a front of the garment such that the operator can operate the release mechanism for the garment without losing sterility.