Patent ID: 7678075
Filing Date: 2010-03-16
Classification: A61M

Abstract:
1. A catheter, comprising: a) an elongated shaft having a proximal shaft section, a distal shaft section, an infusion lumen, an inflation tube defining an inflation lumen, and a guidewire tube defining a guidewire lumen; b) a balloon on the distal shaft section having an inflatable interior in fluid communication with the inflation lumen; c) the proximal shaft section comprising an outer tubular member defining a proximal portion of the infusion lumen, and having a proximal portion of the guidewire tube extending in the infusion lumen and a proximal portion of the inflation tube extending in the infusion lumen; d) the distal shaft section comprising a distal portion of the guidewire tube, a distal portion of the inflation tube, and an infusion tube defining a distal portion of the infusion lumen in fluid communication with the infusion lumen proximal portion, the inflation, guidewire, and infusion tubes having outer surfaces secured together along the distal shaft section; and e) a junction formed at a bond between a distal end of the proximal shaft section and a proximal end of the distal shaft section, the junction comprising the guidewire tube and inflation tube transitioning from being located within the infusion lumen of the proximal shaft section, to being located within the distal shaft section external to the infusion tube.