Patent ID: 6517529
Filing Date: 2003-02-11
Classification: A61M

Abstract:
A hemodialysis catheter, comprising:a) an elongated catheter tube including a tube body having a proximal end and a distal end; b) said tube body including a generally cylindrical wall enclosing a venous lumen and an arterial lumen separated by a septum; c) a longitudinally elongated bolus on said distal end of said tube body, said bolus including a bolus body having a tube connector section connected to said tube body, a passage section and a nose section, said nose section forming a bullet nose shaped, closed front end on said bolus body; d) said passage section containing a venous passage and an arterial passage, said venous passage communicating with said venous lumen and said arterial passage with said arterial lumen; e) a main venous port formed in one side of said bolus body adjacent said nose section and communicating directly with said venous passage; f) a second venous port formed in at least one of said bolus body and said tube body, said second venous port being circumferentially displaced about 180Â° from said main venous port around the axis of said catheter and communicating directly with at least one of said venous passage and said venous lumen; g) an arterial port formed in at least one of said tube body and said bolus body, said arterial port communicating directly with at least one of said arterial passage and said arterial lumen; h) both said tube body and said bolus body being formed of silicone; and i) directly opposite each of said ports is a stiffening arch formed by a bulge in said bolus body or said tube body bulge.