Patent ID: 8197441

Claim:
A catheter mounted automatic vessel occlusion and flush dispersion device comprising: a catheter shaft having an inner diameter and an outer diameter and open proximal and distal ends; an expandable skeleton over the catheter shaft adjacent the distal end, the expandable skeleton having first and second ends and being non-inflatable, but elastically deflectable radially outward between the first and second ends and not elastically deflectable radially outward at the first and second ends of the expandable skeleton; a flexible covering over the expandable skeleton extending from the first end to the second end of the expandable skeleton to occlude a blood vessel when inflated by flushing fluid flow in the catheter shaft, the flexible covering being attached to the expandable skeleton to expand the expandable skeleton when the flexible covering is inflated, the attachment of the flexible covering to the expandable skeleton causing the flexible covering to collapse with the expandable skeleton when flushing fluid flow in the catheter shaft stops; and, at least one opening between the inner diameter of the catheter shaft and the flexible covering to cause inflation of the flexible covering when the flushing fluid flow is provided in the catheter shaft; the flexible covering being attached to the expandable skeleton so that the expandable skeleton conforms to the shape of the flexible covering when the flexible covering is inflated; the expandable skeleton being a biocompatible metallic member set in a collapsed state so that the expandable skeleton hugs the catheter shaft outer diameter when there is no flushing fluid flow in the catheter shaft, automatically forcing the flexible covering attached thereto to a deflated state both before flushing fluid flow in the catheter shaft begins and after flushing fluid flow in the catheter shaft stops; a first end of the flexible covering being porous to allow flushing fluid flow when inflated to occlude or partially occlude an artery or vein at a single location during injection of the flushing fluid, a second end of the flexible covering opposite the first end not being porous.