A collection of devices used for the distention and irrigation of veins (e.g., saphenous) for testing and clearance prior to removal of a section for use as a coronary or peripheral bypass graft. It is also used for vein distention to facilitate ligating side branches in the vein. It typically consists of a standard syringe (e.g., 60 ml), various stainless steel devices (pin, spring, rod), and plastic rings and balls that are used during the process. This is a single-use device.