Patent ID: 7695491

Claim:
A catheter assembly comprising: a first elongate tubular body having a proximal portion, a distal portion, a proximal end having a proximal opening, a distal end having a distal opening, and a lumen extending between the proximal opening and the distal opening; a second elongate tubular body having a proximal portion, a distal portion, a proximal end having a proximal opening, a distal end having a distal opening, and a lumen extending between the proximal opening and the distal opening; and an elongate member joining the first and second elongate bodies, the first elongate tubular body being disposed proximal and tandem to the second elongate tubular body, and the first and second tubular bodies being permanently disposed so that the first and second tubular bodies are not adjacent to each other, further comprising a third elongate tubular body having a proximal portion, a distal portion, a proximal end having a proximal opening, a distal end having a distal opening, and a lumen extending between the proximal opening and the distal opening, a medical device contained within the lumen of the third elongate tubular body, at least the proximal portion of the third elongate tubular body being disposed within the lumen of the first elongate tubular body, the third elongate tubular body being slidable within the lumen of the first elongate tubular body, and the distal portion of the third elongate tubular body being sized to be disposed in the lumen of the second elongate tubular body, the third elongate tubular body being moveable over a limited range of motion from a proximal position where the distal end of the third elongate tubular body is proximal of the proximal end of the second elongate tubular body to a distal position where the distal end of the third elongate tubular body is distal of the proximal end of the second elongate tubular body, the medical device being moveable from the lumen of the third elongate tubular body to the lumen of the second elongate tubular body when the third elongate tubular body is in the distal position, wherein the proximal end of the third elongate tubular body is maintained within the lumen of the first elongate tubular body over the entire limited range of motion.