Conduit tube component can have catheter body and expandable air bag. Catheter body has proximal end, distal end and expansion chamber. The inflatable balloon is distally connected to catheter body. Balloon inner surface that at least partially define internal capacity. The air bag is configured,To which internal capacity can be with inflation lumen catheter main body with air bag. Balloon also has proximal face and distal surface. There is a channel to extend through air bag on the balloon. The proximal balloon and distal surface air bag in the channel of the fluid communication between being configurable to provide. Other conduit tube components and also disclose application method.
