A device intended to be fitted to a luminal device (e.g., catheter, endoscope air/water channel, vitrectomy handpiece) to assist with the cleaning/flushing of the lumen of the device during a medical/surgical procedure and/or for maintenance pre/post procedure. It is typically in the form of a small, cylindrical rod(s) with a button/switch which controls the supply of air and/or water; it may include tubing and/or be used in conjunction with a syringe, device washer/decontaminator, and/or water tap. This is a single-use device.