An apparatus comprising: (a) a dilation catheter comprising: (i) a shaft defining a longitudinal axis, a central lumen , an inflation lumen , an upper lumen , and a lower lumen , wherein the shaft comprises: (A) a proximal end, and (B) a flexible distal end configured to bend relative to the longitudinal axis, wherein the central lumen , the upper lumen , and the lower lumen converge within a portion of the flexible distal end distal relative to the dilator, and (ii) a dilator in fluid communication with the inflation lumen , wherein the dilator is configured to transition from a non-expanded state to an expanded state; and (b) an articulation assembly configured to bend the flexible distal end relative to the longitudinal axis, wherein the articulation assembly comprises: (i) an articulation drive wherein the articulation drive extends from the upper lumen and the lower lumen through the portion of the flexible distal end , and (ii) a steering member housed within the central lumen , wherein the steering member extends within the portion of the flexible distal end , wherein the articulation drive is configured to bend the steering member relative to the longitudinal axis. (a) a dilation catheter comprising: (i) a shaft defining a longitudinal axis, a central lumen , an inflation lumen , an upper lumen , and a lower lumen , wherein the shaft comprises: (A) a proximal end, and (B) a flexible distal end configured to bend relative to the longitudinal axis, wherein the central lumen , the upper lumen , and the lower lumen converge within a portion of the flexible distal end distal relative to the dilator, and (ii) a dilator in fluid communication with the inflation lumen , wherein the dilator is configured to transition from a non-expanded state to an expanded state; and (i) a shaft defining a longitudinal axis, a central lumen , an inflation lumen , an upper lumen , and a lower lumen , wherein the shaft comprises: (A) a proximal end, and (B) a flexible distal end configured to bend relative to the longitudinal axis, wherein the central lumen , the upper lumen , and the lower lumen converge within a portion of the flexible distal end distal relative to the dilator, and (A) a proximal end, and (B) a flexible distal end configured to bend relative to the longitudinal axis, wherein the central lumen , the upper lumen , and the lower lumen converge within a portion of the flexible distal end distal relative to the dilator, and (ii) a dilator in fluid communication with the inflation lumen , wherein the dilator is configured to transition from a non-expanded state to an expanded state; and (b) an articulation assembly configured to bend the flexible distal end relative to the longitudinal axis, wherein the articulation assembly comprises: (i) an articulation drive wherein the articulation drive extends from the upper lumen and the lower lumen through the portion of the flexible distal end , and (ii) a steering member housed within the central lumen , wherein the steering member extends within the portion of the flexible distal end , wherein the articulation drive is configured to bend the steering member relative to the longitudinal axis. (i) an articulation drive wherein the articulation drive extends from the upper lumen and the lower lumen through the portion of the flexible distal end , and (ii) a steering member housed within the central lumen , wherein the steering member extends within the portion of the flexible distal end , wherein the articulation drive is configured to bend the steering member relative to the longitudinal axis. <EOS>