Patent ID: 7572244

Claim:
A fluid jet catheter for removal of unwanted material from a body vessel or cavity comprising; a. a hypo-tube having a proximal end and a distal end and a wall, said hypo-tube configured for passage of high pressure fluid from said proximal end to said distal end, said hypo-tube having at least two jet orifices in said wall near said distal end for creation of at least two high velocity fluid jets; b. a plug configured to seal the distal end of said hypo-tube; c. a flow director having a proximal region and a distal region oriented to redirect said at least two high velocity fluid jets in a proximal direction; d. an exhaust tube for removal of fluid and unwanted material, said exhaust tube having a distal region, at least one inflow orifice and at least one outflow orifice; e. said hypo-tube having an extended hypo-tube portion having a distal region which extends distally past said flow director; and, f. a crimp which provides engagement and sealing of the distal regions of said exhaust tube and said flow director and said extended hypo-tube portion wherein said crimp ensures alignment between the jet orifices of the hypo-tube and the proximal region of the flow director.