An elongated member for medical use that is used to perform a procedure in a pulmonary airway. The elongated member suitable for a procedure in a pulmonary airway comprises plural members connected to each other that have different lumen diameters, outer diameters, and physical properties, and which further includes an operating member that has an elongated shape and is connected to at least part of the first member, and which manipulates the curving the first member through push/pull operation.
