Patent ID: 8652099
Filing Date: 2014-02-18
Classification: A61B,A61M

Abstract:
1. A retrievable medical device for the delivery of medical treatment fluid to body vessels, having a distal and a proximal end, comprising a self-expanding, hollow tubular member and a delivery catheter suitable for deploying a self-expanding tubular member, wherein: the tubular member comprises a liner made from liquid-impermeable material and a liquid permeable carrier made of braided wire mesh, the tubular member is configured to expand radially to form a central part flanked by two annular ridges—a distal annular ridge and a proximal annular ridge, which central part is adapted to form an annular lumen in the vessel, said tubular member has a dumbbell or hourglass shape in the expanded condition in which the central part radially expands to a lesser degree compared to the annular ridges, the tubular member comprises a liquid-impermeable area, defined at least by the region flanked by the annular ridges, the tubular member comprises two liquid-permeable regions, one distal to the distal annular ridge and one proximal to the proximal annular ridge, so forming a passageway between the distal end and the proximal end of the tubular member for the flow of fluid, the proximal end of the tubular member is attached to the distal end of the delivery catheter, the proximal end is closed but is disposed with a liquid-permeable region devoid of the liner, the distal end of the tubular member is open-mouthed, a wall of the tubular member, in the liquid-impermeable area is disposed with one or more fluid ports for the passage of treatment fluid, and the catheter comprises an inner tube, an outer tube surrounding at least a portion of the length of the inner tube, and a pusher means for deployment of the tubular member, wherein said inner tube is in fluid connection with the one or more fluid ports.