DILATOR WITH EXPANDABLE MEMBER

摘要

A dilator and access sheath assembly (2) including a first conduit which includes a wall (21) defining a lumen therethrough and which is sufficiently rigid to dilate tissue in a body vessel; a member (14) coaxially surrounding a first section of the first conduit, where the member is capable of expanding; and a second conduit (30) coaxially surrounding a second section of the first conduit.