Patent ID: 8632491

Claim:
A catheter mounted automatic vessel occlusion and flush dispersion device comprising: a catheter shaft having an inner diameter, an outer diameter, and a wall therebetween, an open proximal and distal end, and a flow restriction between the proximal end and the distal end, wherein the flow restriction includes an elastomeric valve in the catheter shaft, the elastomeric valve obstructing flow through the distal end of the catheter shaft at low fluid pressures on the elastomeric valve, and deflecting at higher fluid pressures to present reduced flow obstruction, and wherein the elastomeric valve comprises a circular elastomeric member supported concentrically with respect to the inner diameter of the catheter shaft by a support coupled to a center of the circular elastomeric member; an expandable skeleton over the catheter shaft adjacent the distal end, the expandable skeleton having a first and second end and an elastically deflectable portion between the first and second end, the elastically deflectable portion being elastically deflectable in a radially outward direction; a flexible covering to occlude a blood vessel when inflated, the flexible covering attached to the expandable skeleton at attachment points on the elastically deflectable portion; and, at least one opening through the wall and proximal to the flow restriction to inflate the flexible covering when a fluid flow is provided in the catheter shaft.