Patent ID: 6852261

Claim:
The method of fabricating a catheter body comprising the steps of: providing a tubular catheter shaft including a catheter shaft proximal end and a catheter shaft distal end, the catheter shaft having a catheter shaft outer diameter and enclosing at least one catheter shaft lumen; providing a tubular distal catheter segment including a segment proximal end and a segment distal end, the distal segment having a segment outer diameter substantially the same as the catheter shaft outer diameter and a segment lumen extending between the segment proximal end and the segment distal end; aligning the segment lumen and the segment outer diameter with the catheter shaft lumen and the catheter shaft outer diameter, respectively, to form an attachment junction; and melt bonding a tubular sleeve to a distal portion of the catheter shaft and a proximal portion of the distal segment bridging the attachment junction such that at least part of the attachment junction comprises melted material from each of the tubular sleeve, the catheter shaft, and the distal segment.