An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface...http://www.google.co.uk/patents/US7422579?utm_source=gb-gplus-sharePatent US7422579 - Emboli protection devices and related methods of use
