Patent ID: 9050073
Filing Date: 2015-06-09
Classification: A61B

Abstract:
1. A cryogenic ablation catheter comprising: a catheter shaft having proximal and distal ends and a catheter shaft lumen extending between the proximal and distal ends; an expandable and collapsible balloon mounted to the distal end of the catheter shaft, the balloon having an inner surface defining a balloon interior; the balloon having distal, proximal and central portions; a connector at the proximal end of the catheter shaft; a refrigerant delivery tube assembly comprising: a first elongate element having proximal and distal ends, the proximal end of the first elongate element coupled to the refrigerant delivery element, the first elongate element extending distally from the refrigerant delivery element; a second elongate element coupled to and extending distally from the first elongate element, the distal portion of the balloon secured to the second elongate element; and the first elongate element axially slideably coupled to at least one of the refrigerant delivery element and the second elongate element.