Patent ID: 8647294

Claim:
A direct stream hydrodynamic catheter system comprising: a manifold having a central elongated tubular body with a proximal end and a distal end; an elongated flexible catheter tube having a proximal section and a distal section, said proximal section having a proximal end extending into and distally from said distal end of said central elongated tubular body of said manifold, and said distal section having an open distal end coincident with a longitudinal axis of the distal section; a tubular fluid jet emanator positioned within said distal section of said elongated flexible catheter tube adjacent to said open distal end, said tubular fluid jet emanator having a proximal face and a distal face, said proximal face having a plurality of proximal fluid jet orifices that are proximally directed, and said distal face having a plurality of distal fluid jet orifices aligned with and laterally recessed from an inner edge of the open distal end such that fluid jet streams distally directed from the plurality of distal fluid jet orifices extend through said open distal end; one or more inflow orifices in said elongated flexible catheter tube proximal to said tubular fluid jet emanator, wherein the one or more inflow orifices are configured to receive a fluid flow provided by the fluid jet streams extending through the open distal end; an elongated flexible high pressure tube having a proximal end and a distal end, said elongated flexible high pressure tube extending from said manifold, through said elongated flexible catheter tube, and terminating within said tubular fluid jet emanator; and a high pressure fluid source delivering a pressurized fluid into said proximal end of said elongated flexible high pressure tube.