A First aspect of This relates to a Guide Wire Assembly for use in a Catheter, which comprises: (a) an Expandable Member located at the distal End.Where the Expandable Member can be switched between a retracted State and an expanded State.And wherein Said Expandable member has a substantially Conical Configuration； (b) a Swivel Joint which connects the Expandable member to the guide Wire.A Second aspect of This relates to a catheter Assembly includes a First Pipe and A Guide Wire according to the first aspect of the present located inside the first TubeThe Guide Wire, being located either within a Second Tube located inside the first Tube.Where the first and / or second Tube Tube are made of a material not adherent or nonadherent and covered with a material wherein Said First Tube includes one or more Side Holes.A Third aspect of This relates to a Wire Guide Assembly for use in a catheterComprising: (a) an Expandable member； (b) one or more contacts located on the Expandable Member,Where each Contact includes a driver electrode connected to a Swivel Joint； (c) an electrically Conductive member that connects to the said Expandable Wire GuideWhere the guide Wire has a Core Insulated conductor； and (d) a Power Source capable of Selectively generate an electrical Signal which is transmitted to the (S) using the contact (S)Core conductor of the guide Wire.Un primer aspecto de la presente se refiere a un alambre guía para usar en un montaje de catéter, que comprende: a) un miembro expansible ubicado en el extremo distal, en donde dicho miembro expansible se puede hacer cambiar entre un estado retraído y un estado expandido, y en donde dicho miembro expansible tiene una configuración sustancialmente cónica； b) una articulación pivotable que conecta dicho miembro expansible a dicho alambre guía. Un segundo aspecto de la presente se refiere a un montaje de catéter que comprende un primer tubo y un alambre guía de acuerdo con el primer aspecto de la presente ubicado dentro d
