Patent ID: 7766875

Claim:
A catheter having a proximal end and an opposite closed off distal end, the catheter comprising: a proximal section disposed closest to the proximal end, the proximal section having a substantially uniform outer diameter, the proximal section being formed of a flexible material; a distal section disposed closest to the distal end; the distal section being formed of a substantially rigid material; the distal section formed by a plurality of distal subsections including at least a first distal subsection closest to the proximal end and having a substantially uniform outer diameter and a second distal subsection closest to the distal end and having a substantially uniform outer diameter, wherein the outer diameter of the first distal subsection is greater than the outer diameter of the second distal subsection; the second distal subsection having a plurality of openings defined radially therein; and the proximal and distal sections having a lumen defined therethrough extending from the proximal end to the distal end; wherein the second distal section overlaps with the first distal section, but the second distal section does not overlap with the proximal section.