Patent ID: 8966740
Filing Date: 2015-03-03
Classification: A61F,Y10T

Abstract:
1. A method of forming a dual balloon system for a catheter assembly for deployment in a bifurcated vessel, the method comprising: (a) extruding a multi-lumen member including a main tube and a side tube that are joined at a portion along a length of the main tube and the side tube to form an integrated unit, the main tube defining a main lumen, and the side tube defining a side lumen; (b) separating a middle portion of the side tube from the main tube at the joined portion such that the side tube is joined to and extends along at least a first length of the main tube proximal of the separated middle portion and is joined to and extends along at least a second length of the main tube distal to the separated middle portion; (c) forming a main inflation portion in the main tube; (d) forming a side inflation portion in the side tube; and (e) once the formation of the main and side inflation portions is complete, the method further comprises bonding the main and side tubes to a catheter shaft.