| 主权项 |
1. A hydrodynamic catheter comprising:
a catheter body with a catheter lumen extending from a proximal catheter portion to a distal catheter portion; an infusion tube extending within the catheter body from the catheter proximal portion toward the catheter distal portion, the infusion tube is configured for coupling with a fluid source near the catheter proximal portion; an inflow orifice at a first location along a catheter body perimeter; an outflow orifice at a second location along the catheter body perimeter spaced from the first location; a fluid jet emanator in fluid communication with the infusion tube, the fluid jet emanator including one or more jet orifices, the one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice; and a pivot cylinder at a third location along the catheter body perimeter, the third location distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice; and wherein at least a treatment portion of the catheter body including the inflow and outflow orifices is rotatable around the pivot cylinder between at least first and second rotated positions:
in the first rotated position the inflow and outflow orifices are directed in a first direction, and the inflow and outflow orifices are positioned in close proximity to a first portion of a vessel, andin the second rotated position the inflow and outflow orifices are directed in a second direction different from the first direction, and the inflow and outflow orifices are positioned in close proximity to a second portion of a vessel different from the first portion of the vessel. |
