An inflator system (100, 200), comprising: (a) a dilation catheter (104, 204), wherein the dilation catheter comprises: (i) a shaft defining a lumen, wherein the shaft is sized to fit within an anatomical passageway in a patient, and (ii) a dilator in fluid communication with the lumen, wherein the dilator is configured to receive fluid through the lumen and thereby expand in response to fluid communicated through the lumen; (b) a fluid pressure regulator assembly (102, 202), wherein the fluid pressure regulator assembly comprises: (i) a pump (106, 206) in fluid communication with the lumen of the shaft, (ii) a control module (108, 208), wherein the control module (108, 208) is configured to store one or more fluid pressure profiles, wherein the control module (108, 208) is operable to receive a selection of a particular fluid pressure profile from the one or more of fluid pressure profiles, wherein the control module (108, 208) is operable to selectively drive the pump (106, 206) via an actuator in accordance with a selected fluid pressure profile to inflate the dilator, and (iii) a user input feature (110, 210) operable to selectively activate the control module (108, 208); and (c) a pressure sensor (112, 234) configured to sense a pressure of fluid in the dilation catheter (104, 204) or another portion of the inflator system, wherein the pressure sensor (112, 234) is in communication with the control module (108, 208); and wherein the control module (108, 208) is configured to drive the pump (106, 206) to automatically repeat inflation and deflation of the dilator until a condition based on the relationship between sensed fluid pressure and distance travelled by the actuator is met. (a) a dilation catheter (104, 204), wherein the dilation catheter comprises: (i) a shaft defining a lumen, wherein the shaft is sized to fit within an anatomical passageway in a patient, and (ii) a dilator in fluid communication with the lumen, wherein the dilator is configured to receive fluid through the lumen and thereby expand in response to fluid communicated through the lumen; (i) a shaft defining a lumen, wherein the shaft is sized to fit within an anatomical passageway in a patient, and (ii) a dilator in fluid communication with the lumen, wherein the dilator is configured to receive fluid through the lumen and thereby expand in response to fluid communicated through the lumen; (b) a fluid pressure regulator assembly (102, 202), wherein the fluid pressure regulator assembly comprises: (i) a pump (106, 206) in fluid communication with the lumen of the shaft, (ii) a control module (108, 208), wherein the control module (108, 208) is configured to store one or more fluid pressure profiles, wherein the control module (108, 208) is operable to receive a selection of a particular fluid pressure profile from the one or more of fluid pressure profiles, wherein the control module (108, 208) is operable to selectively drive the pump (106, 206) via an actuator in accordance with a selected fluid pressure profile to inflate the dilator, and (iii) a user input feature (110, 210) operable to selectively activate the control module (108, 208); and (i) a pump (106, 206) in fluid communication with the lumen of the shaft, (ii) a control module (108, 208), wherein the control module (108, 208) is configured to store one or more fluid pressure profiles, wherein the control module (108, 208) is operable to receive a selection of a particular fluid pressure profile from the one or more of fluid pressure profiles, wherein the control module (108, 208) is operable to selectively drive the pump (106, 206) via an actuator in accordance with a selected fluid pressure profile to inflate the dilator, and (iii) a user input feature (110, 210) operable to selectively activate the control module (108, 208); and (c) a pressure sensor (112, 234) configured to sense a pressure of fluid in the dilation catheter (104, 204) or another portion of the inflator system, wherein the pressure sensor (112, 234) is in communication with the control module (108, 208); and