Ferrera, David A.,Cragg, Andrew H.,Fulkerson, John,Benjamin, Joshua
申请号：
AU2014201810
公开号：
AU2014201810B9
申请日:
2014.03.27
申请国别(地区):
AU
年份:
2016
代理人:
摘要：
#$%^&*AU2014201810B920160211.pdf#####BLOOD FLOW RESTORATION AND THROMBUS MANAGEMENT ABSTRACT An expandable tip assembly (600) configured to address an occlusive thrombus within a blood vessel without distal embolic protection, comprising an elongate member (605) an expandable and reconstrainable scaffold (610) coupled to the distal end of the elongate member, the scaffold being adapted to self-expand radially from a non-expanded configuration to an expanded configuration and to transition between the expanded configuration and the nonexpanded configuration upon unsheathing and re-sheathing of the scaffold. The scaffold is eccentrically coupled to the distal end of the elongate member by a plurality of tether lines such that the scaffold is deployed offset from the distal end of the elongate member, thereby facilitating increased blood flow though the scaffold. The scaffold comprises an open distal end without a distal embolic protection member or device. The scaffold comprises an open proximal end configured to facilitate re-sheathing of the scaffold. The scaffold comprises a plurality of open cells sized to promote at least one of vessel reperfusion or thrombus removal and the scaffold has a chronic outward force (COF) per unit length that is non-zero and decreases by between 50% to 75% from an expansion diameter of 1.5 mm to an expansion diameter of 4.5 mm.
