Multi-lumen catheter with protected tip

A multilumen catheter assembly for use in hemodialysis and implantable into the vasculature of a patient, comprising:

• an elongated body, having a proximal end and a distal end, defining a first lumen having a sidewall extending between the proximal end and a first lumen distal end proximate the body distal end and a first distal opening disposed proximate the first lumen distal end and defining a first blood flow port communicable with a surrounding environment, and a second lumen connected to the sidewall and extending between the proximal end and a second lumen distal end proximate the body distal end, the second lumen distal end distal of the first lumen distal end, wherein the second lumen includes a second distal opening disposed distally of the first distal opening and defining a second blood flow port communicable with a surrounding environment;
• and
• a self-expanding protector adjoining the elongate body distally of the first distal opening, the protector extending from an inner edge, positioned circumferentially about the second lumen distal end such that the inner edge and a distal tip of the second lumen distal end are coterminous, radially outwardly and proximally to a free proximal edge that extends circumferentially about the elongate body proximate the second distal opening, the protector defining through-ways that permit blood flow past the protector.