A METHOD FOR FILTERING EMBOLIC MATERIAL

摘要

In a method for filtering embolic material, a guide catheter (5) is advanced through a vasculature. A delivery catheter (4), a guidewire (2) and a collapsed filter are advanced together through the guide catheter (5) to a point distally of the distal end of the guide catheter (5). The guidewire (2) is then advanced across the lesion. During this advancement of the guidewire (2), the delivery catheter (4) and the collapsed filter remain substantially stationary. When the guidewire (2) has crossed the lesion, the delivery catheter (4) and the collapsed filter are then advanced across the lesion until the collapsed filter is distal of the lesion. The delivery catheter (4) is then withdrawn to facilitate deployment of the filter at the location distal of the lesion to ensure that any embolic material released during performance of an interventional procedure at the lesion will be captured and safely retained within the filter.