Patent ID: 8951218
Filing Date: 2015-02-10
Classification: A61M

Abstract:
1. A multi-path catheter, including: an elongate tubular member; a withdrawal pathway along which unfiltered fluid is withdrawn in a distal to proximal direction, wherein the withdrawal pathway is at least partially defined by the elongate tubular member and originates at a port located at a distal point in the elongate tubular member; and at least one infusion pathway along which filtered fluid is returned in a proximal to distal direction, wherein the at least one infusion pathway extends distally beyond the withdrawal pathway and is at least partially defined by the elongate tubular member; wherein the elongate tubular member includes first and second legs positioned on opposing sides of, and being separated by a width of, the withdrawal pathway at the distal point so that the first and second legs are noncontiguous to each other at the distal point, and wherein the at least one infusion pathway is at least partially defined by one of the first and second legs; wherein the first and second legs have outer walls that are unattached to one another at distal ends thereof such that a clearance between the first and second legs extends in a distal direction from the port.