Patent ID: 7993364
Filing Date: 2011-08-09
Classification: A61B,A61M

Abstract:
1. A device for the treatment of aneurysms in the neurovascular system of human patients comprising: (a) a catheter having a proximal end, a distal end and a longitudinal direction defined between the proximal end and the distal end; (b) a clip longitudinally folded within the catheter comprised of self-expanding distal and proximal segments each comprising at least one frame and each frame supporting a lattice and the self expanding distal and proximal segments connected at opposite ends of a collapsing joint including at least one leaf or V spring and wherein, when the clip becomes unconstrained by the catheter, at least one clip segment expands; (c) the lattice supported by the frame of the distal segment aligned in an offset configuration from the lattice configuration of the proximal segment achieving small or closed openings of the combined lattices; (d) a wire detachably connected to the collapsible joint wherein the wire can push the clip through the catheter, push the clip into an aneurysm cavity and expand the distal segment and can pull the expanded distal segment in a proximal direction; and (e) a barrier to the aneurysm cavity created by the self expanding distal and proximal segments installed across an aneurysm neck.