A catheter, the catheter comprising: a distal length extending to a distal end, the distal length configured to indwell a cavity of a patient body, the distal length comprising: a first lumen (202, 702, 802, 1502, 2102) extending longitudinally through a lengthwise portion of the distal length, the first lumen at least partially defined by a first inner diameter surface of the distal length; a second lumen (204, 704, 804, 1504, 2104) extending longitudinally through the lengthwise portion of the distal length, the second lumen at least partially defined by a second inner diameter surface of the distal length; and a first fenestration (326, 426, 526, 626) disposed through a side wall of the first lumen (202, 702, 802, 1502, 2102), the first fenestration forming an outlet of the first lumen; and a proximal length including a proximal lengthwise portion of the first lumen and a proximal lengthwise portion of the second lumen, wherein a cuff element (222, 1422, 1622, 1922) is disposed on an outer surface of the proximal length, wherein the first (202, 702, 802, 1502, 2102) and second (204, 704, 804, 1504, 2104) lumens of the distal length are formed within a binal portion (214, 1514, 1614, 2014, 2114) having an ovular cross-section with relatively smooth and continuous outer-perimeter shape, the second inner diameter surface defining the second lumen having a diameter larger than the first inner diameter surface defining the first lumen, and wherein the catheter further comprises a bifurcated length (206, 2106) located proximally of the binal portion (214, 1514, 1614, 2014, 2114), the bifurcated length (206, 2106) including a first tube portion and a second tube portion that join at a junction (212, 1412), the first lumen (202, 702, 802, 1502, 2102) extending longitudinally through the first tube portion, and the second lumen (204, 704, 804, 1504, 2104) extending longitudinally through the second tube portion. a distal length extending to a distal end, the distal length configured to indwell a cavity of a patient body, the distal length comprising: a first lumen (202, 702, 802, 1502, 2102) extending longitudinally through a lengthwise portion of the distal length, the first lumen at least partially defined by a first inner diameter surface of the distal length; a second lumen (204, 704, 804, 1504, 2104) extending longitudinally through the lengthwise portion of the distal length, the second lumen at least partially defined by a second inner diameter surface of the distal length; and a first fenestration (326, 426, 526, 626) disposed through a side wall of the first lumen (202, 702, 802, 1502, 2102), the first fenestration forming an outlet of the first lumen; and a first lumen (202, 702, 802, 1502, 2102) extending longitudinally through a lengthwise portion of the distal length, the first lumen at least partially defined by a first inner diameter surface of the distal length; a second lumen (204, 704, 804, 1504, 2104) extending longitudinally through the lengthwise portion of the distal length, the second lumen at least partially defined by a second inner diameter surface of the distal length; and a first fenestration (326, 426, 526, 626) disposed through a side wall of the first lumen (202, 702, 802, 1502, 2102), the first fenestration forming an outlet of the first lumen; and a proximal length including a proximal lengthwise portion of the first lumen and a proximal lengthwise portion of the second lumen, wherein a cuff element (222, 1422, 1622, 1922) is disposed on an outer surface of the proximal length, wherein the first (202, 702, 802, 1502, 2102) and second (204, 704, 804, 1504, 2104) lumens of the distal length are formed within a binal portion (214, 1514, 1614, 2014, 2114) having an ovular cross-section with relatively smooth and continuous outer-perimeter shape, the second inner diameter surface defining the second lumen having a diameter larger than the first inner diameter surface defining the first lumen, and wherein the catheter further comprises a bifurcated length (206, 2106) located proximally of the binal portion (214, 1514, 1614, 2014, 2114), the bifurcated length (206, 2106) including a first tube portion and a second tube portion that join at a junction (212, 1412), the first lumen (202, 702, 802, 1502, 2102) extending longitudinally through the first tube portion, and the second lumen (204, 704, 804, 1504, 2104) extending longitudinally through the second tube portion.