Expandable sheath with elastomeric cross sectional portions

A sheath comprising:

• an inner member comprising a central lumen extending therethrough and comprising a folded portion, a second folded portion and a third folded portion, the inner member being configured to expand to allow passage of an implant through the central lumen;
• and
• at least two circumferentially spaced, hard arc-segments positioned radially outward of the inner member and configured to reinforce the sheath, the hard arc-segments extending parallel to each other along a length of the sheath, each of the hard arc-segments comprising a curved inner surface, a curved outer surface, a first straight edge extending between the curved inner and outer surfaces, and a straight second edge extending between the curved inner and outer surfaces,
• wherein the folded portion of the inner member is positioned between two circumferentially spaced hard arc-segments,
• wherein the folded portion includes one or more folds,
• wherein the one or more folds comprise portions of the inner member arranged in an overlapping configuration that move to a less overlapping configuration increasing a diameter of the central lumen of the sheath to allow passage of an implant therethrough,
• wherein the third folded portion is circumferentially spaced around the inner member from the folded portion and the second folded portion, and the folded portion, second folded portion and third folded portion are equally spaced circumferentially around the inner member.