| abstract |
The present disclosure provides a catheter comprising: (a) a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening, (b) a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening, and (c) a fourth opening positioned in a sidewall of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular structure, wherein a first portion of the first tubular structure extends beyond the fourth opening, and wherein the second tubular structure is positioned adjacent to a second portion of the first tubular structure. |