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US 2014/0277007 A1Published application
Hydrodynamic eccentrically pivoting catheter
AssigneeMedrad, Inc.
InventorMichael J. Bonnette
Life of this patent
Estimating the term…
Abstract
A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes 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. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.
Claims21
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, and
- in 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.
8 more elements
A hydrodynamic catheter system comprising:
- a hydrodynamic catheter including:
- a catheter body with a catheter lumen extending from a proximal catheter portion to a distal catheter portion and an infusion tube extending within the catheter body from the catheter proximal portion toward the catheter distal portion;
- a treatment portion of the catheter body including an inflow orifice at a first location along a catheter body perimeter, and 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 fluid jet emanator 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 adjacent to the treatment portion and distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice;
3 more elements
A method for using a hydrodynamic catheter comprising:
- positioning a treatment portion of a catheter adjacent to a thrombus location along a vessel wall, the treatment portion of the catheter including an inflow orifice and an outflow orifice, the outflow orifice spaced from the inflow orifice, the catheter including a pivot cylinder eccentrically mounted relative to a catheter longitudinal axis;
- treating thrombus at a first vessel position along the vessel wall including:
- rotating a treatment portion of the catheter including the inflow and outflow orifices about the pivot cylinder to a first rotated position corresponding to the first vessel position, the inflow and outflow orifices positioned in close proximity to the first vessel portion and directed in a first direction, and
- delivering treatment in the first direction to the first vessel portion through the inflow and outflow orifices at the first rotated position;
- and
- treating thrombus at a second vessel position along the vessel wall radially spaced from the first vessel position including:
- rotating the treatment portion of the catheter including the inflow and outflow orifices about the pivot cylinder to a second rotated position corresponding to the second vessel position, the inflow and outflow orifices positioned in close proximity to the second vessel portion and directed in a second direction different from the first direction, and
- delivering treatment in the second direction to the second vessel portion through the inflow and outflow orifices at the second rotated position.
5 more elements
Dependencies are inferred from the claim text.