Patent ID: 7981093

Claim:
A method of making a multilumen catheter assembly, comprising the steps of: forming a unitary catheter tube having a distal portion and a distal end portion terminating in a distal end, a proximal portion terminating in a proximal end, an outer wall having a smooth, curved and generally convex surface without ridges or grooves, a single longitudinal bisecting wall generally bisecting the unitary catheter tube, and together with the outer wall forming a first lumen and a second lumen, each of the first and the second lumens extending longitudinally through the unitary catheter tube; splitting the unitary catheter tube longitudinally along the distal end portion of the unitary catheter tube, and along a length of the longitudinal bisecting wall to form a first distal end tube and a second distal end tube; and bonding at least a portion of the first distal end tube to the second distal end tube to releasably attach the first and the second distal end tubes, whereby the multilumen catheter assembly assists prevention of leakage at a vessel entry site through use of the unitary catheter tube outer wall while providing length variability to separate and independent distal end tubes.