#$%^&*AU2016266043A120170309.pdf#####48 ABSTRACT "An anchoring device for anchoring a boring tool in a lumen or vessel" 5 An anchoring device (75) for anchoring a boring tool in a lumen for boring through an occlusion in the lumen comprises an expandable element (18) formed by a tubular member (79) of perforated resilient material. An elongated carried tube (80) extends from the proximal end of the tubular member (79), and a guide element (33) extends from the distal end (20) of the tubular member (79). An elongated bore (81) extends 10 through the carrier tube (80) and communicates through the tubular member (79) with a guide bore (34) of the guide element (33) for accommodating a boring tool through the carrier element and in turn through the guide bore (34). A primary internal screw thread (35) is provided in the guide bore (34) for engaging a corresponding external screw thread on the boring tool. A delivery catheter (77) 15 having a central lumen (76) accommodates the anchoring device (77) to a site adjacent to the occlusion. The tubular member (79) on being urged outwardly through a distal end (84) of the delivery catheter (77) expands to engage the lumen adjacent the occlusion thereby anchoring the guide element (33) in the lumen adjacent the occlusion, for guiding the boring tool into the occlusion. 20 8468484_1 (GHMatters) P94734.AU.15/6 co CD 0o co co cm LO o Col co-J 0 7 00, 0o IY C) 00 0) 0)CY CY) 0) 0) 0 LO~ II,00) 00a)o Co0 Co Co3
