THROMBECTOMY CATHETERS, SYSTEMS AND METHODS

摘要

Thrombectomy catheters having at least one outflow orifice and one or more inflow orifices, systems including the thrombectomy catheters, and methods of using the thrombectomy catheters are described herein. The thrombectomy catheters described herein may include one or more of the protective features that may limit potential hazards to vessel walls in which the thrombectomy catheters are used.

主权项

1. A thrombectomy catheter comprising:
a catheter body extending from a distal portion toward a proximal portion along a longitudinal axis; a high pressure tube extending through a lumen of the catheter body from the proximal portion toward the distal portion, the high pressure tube configured for coupling with a fluid source near the proximal portion and terminating in a fluid jet emanator located in the catheter lumen, the fluid jet emanator comprising a plurality of fluid jet openings configured to direct a plurality of fluid jets through the catheter lumen toward the proximal portion, wherein the high pressure tube extends along one side of the catheter lumen such that the high pressure tube is off-center within the catheter lumen; an inflow orifice formed through a wall of the catheter body in the distal portion, wherein the inflow orifice is located proximally from the fluid jet emanator; a radiopaque marker attached to the high pressure tube within an axial length of the inflow orifice as measured along the longitudinal axis, wherein the radiopaque marker is off-center within the catheter lumen; and an outflow orifice in the distal portion, wherein the outflow orifice is located proximally of the inflow orifice such that the inflow orifice is located between the outflow orifice and the fluid jet emanator.