Assertion: catheter's lumen | /r/HasSubevent | first and second balloons
Facets:
Source sentences:
text: The proximal ends of the lumens leading to the first and second balloons were coupled to valves each having a Luer tapered socket, respectively, to which syringes B4 and C4 were connected such that inflating fluid (physiological saline) could be injected into the respective balloons.