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Comparison of distal devices. The Merci device (A) has a coil-like shape; the Catch device (B) has significantly more filaments forming its basketlike shape than the BCR Roadsaver device (C) with its complex snarelike shape. D, The device is delivered using a microcatheter and is unsheathed behind the clot, where force is applied to the distal base of the thrombus.
