A surgical system includes a bronchoscope, an extended working channel defining an elongated passageway and adapted to extend through the bronchoscope, and a valve in fluid communication with the passageway of the extended working channel. The surgical system further includes an elongated surgical instrument configured and dimensioned to be inserted through the extended working channel. During operation, a fluid is able to flow from the valve and through the extended working channel such that the fluid travels within an annular area surrounding the elongated surgical instrument positioned within the extended working channel.