Patent ID: 7104966
Filing Date: 2006-09-12
Classification: A61B,A61M

Abstract:
1. A flexible guidewire system with an exposed midsection, for crossing an obstruction located in a patient's vessel, comprising in combination: a flexible pilot wire; and a flexible casing having a tubular distal portion made of a helical wire that is gated at its distal end, said distal portion being slidable and rotatable over said pilot wire, a thin elongated midsection connected to said distal portion, said midsection disposed alongside said pilot wire and is slidable along and rotatable around said pilot wire, and a proximal tubular coupling for rotating and linearly moving said casing over said pilot wire, said coupling being slidable and rotatable over said pilot wire and being connected to said midsection, wherein a section of said pilot wire that is disposed alongside said midsection of said casing is exposed.