Infusion liquid is expelled distally of an ablation burr for washing a blood vessel lesion being treated by the burr. The infusion liquid can be aspirated in a proximate direction to carry the infusion liquid and loose ablated particles of the lesion away from the treatment area. The infusion liquid...http://www.google.com/patents/US20020099367?utm_source=gb-gplus-sharePatent US20020099367 - Frontal infusion system for intravenous burrs
