Abstract: The present invention relates to an obstructing device comprising a hollow tubular member comprising a. a proximal opening at its proximal end; b. a substantially tubular surface extending distally from said proximal opening; c. a distal end. The obstructing device further comprises a grasping arm extending distally from said opening at the proximal end; wherein the distal end is either closed or comprises a small orifice. The present invention relates to a method of delivery of said device.