Figure 5.

Four-step approach to preparation of the snare. Step 1: Insertion of the 0.014″ guidewire with the collapsed balloon into the guide catheter. Step 2: Looping of the wire so that its distal end is reintroduced into the guiding catheter. Step 3: Inflation of the balloon, so that the distal end of the wire is caught between the inner wall of the guiding catheter and the outer wall of the inflated balloon. Step 4: Retraction of the 0.014″ wire to reduce the size of the loop or further insertion of the wire to increase the size of the loop.