Patent ID: 9050441
Filing Date: 2015-06-09
Classification: A61M

Abstract:
1. A device for introduction into a vessel, comprising: a main elongated element having a main elongated element proximal end and a main elongated element distal end; a balloon positioned at the main elongated element distal end, the balloon having a balloon proximal end, a balloon distal end, and an inflation lumen therethrough; a distal connecting element positioned at the distal end of the balloon to receive a guidewire during use; a longitudinally movable sheath positioned external to the main elongated element, the longitudinally movable sheath having a distal end and a proximal end; and a core wire unslidingly attached to the main elongated element at a core wire attachment point, the core wire including an internal core wire portion positioned within the main elongated element and an external core wire portion positioned distally with respect to the internal core wire portion, the external core wire portion external to and running alongside the balloon, wherein a position of the sheath distal end with respect to the balloon defines an exposed portion of the balloon that expands when fluid is delivered to the balloon through the inflation lumen.