US 7,569,029 B2
Multi-lumen catheter
Timothy W. I. Clark, 8516 Parkwood La., Philadelphia, Pa. 19128 (US)
Filed on Apr. 12, 2005, as Appl. No. 11/103,778.
Claims priority of provisional application 60/561430, filed on Apr. 12, 2004.
Prior Publication US 2005/0228339 A1, Oct. 13, 2005
Int. Cl. A61M 3/00 (2006.01)
U.S. Cl. 604—43  [604/266; 604/4.01; 604/5.01; 604/6.05; 604/6.16] 23 Claims
OG exemplary drawing
 
1. A catheter for placement within a vessel of a patient comprising an elongated catheter body having a proximal end and a distal end, a septum extending longitudinally through the interior of the catheter body from the proximal end to the distal end thereof dividing the interior of the catheter body into a first lumen and a second lumen each having a distal end, and internal walls at the distal ends of the lumina, wherein said internal walls define a substantially helical transition zone which gradually deflects fluids helically, in three dimensions, and said walls terminate at side facing ports located on opposing sides of the catheter body.