Patent ID: 8870754

Claim:
A medical device comprising: an elongated flexible tube defining a longitudinal axis and including a tubular proximal portion and a distal portion connected to the proximal portion by a joint; wherein the elongated flexible tube defines a first lumen extending through the proximal portion and the distal portion and leading to an opening defined on an exterior side surface of the elongated flexible tube, a curved portion of the first lumen extends distally within the distal portion and curves to terminate at the opening, a second lumen is defined within the proximal portion and houses a torque transfer element therein, and the distal portion defines a cavity that extends distally within the distal portion, the cavity receiving a distal portion of the torque transfer element that extends distally beyond the second lumen; and wherein the distal portion of the elongated flexible tube and the curved portion of the first lumen rotate relative to the proximal portion around the longitudinal axis of the elongated flexible tube.