Abstract: An inverting sheath delivery system for medical devices, intraocular lens (IOL), and stent placement, in an eye as part of a cataract procedure or other body location or for therapeutic procedures such as the precise placement of radioisotopes (seeds) to a tumor. In one embodiment, the IOL replacement is positioned in the sheath and carried forward as the sheath is advanced during inversion. The IOL is then deposited in the corresponding juxtaposed position proportional to the distance the sheath traveled around the tip of the pusher tube.