Thrombectomy catheter systems
First Claim
Patent Images
1. A thrombectomy catheter system comprising:
- a catheter including a catheter body and a high pressure tube, the catheter body defining an exhaust lumen and an infusion lumen, and the high pressure tube having a nozzle orifice positioned to direct a fluid jet into a distal opening of the exhaust lumen, the catheter further comprising a dividing wall dividing the exhaust lumen into a first exhaust lumen section and a second exhaust lumen section;
a source of infusion fluid communicating with a proximal end of the infusion lumen;
a fluid control device fluidly coupled between the catheter and the source of infusion fluid, the fluid control device being adapted to regulate a flow rate of infusion fluid from the source of infusion fluid to the infusion lumen of the catheter, wherein the high pressure tube extends through the infusion lumen of the catheter body;
a recirculation channel positioned in the first exhaust lumen section and configured to recirculate fluid from within the first exhaust lumen section and into a body lumen of a patient; and
a filter positioned in the first exhaust lumen section and upstream of the recirculation channel, the filter being sized to prevent passage of solid particles into the recirculation channel.
1 Assignment
0 Petitions
Accused Products
Abstract
A thrombectomy catheter system is disclosed which includes a catheter having an exhaust lumen, an infusion lumen and a high pressure tube. The high pressure tube includes a nozzle orifice for forming a high pressure jet of fluid for cutting occlusive material from within a body lumen. The nozzle orifice is positioned to direct the high pressure jet of fluid into the distal end of the exhaust lumen which creates a suctioning effect. The infusion lumen replaces fluid that is removed from the body lumen through the exhaust lumen by a suctioning effect created by the fluid jet.
-
Citations
16 Claims
-
1. A thrombectomy catheter system comprising:
-
a catheter including a catheter body and a high pressure tube, the catheter body defining an exhaust lumen and an infusion lumen, and the high pressure tube having a nozzle orifice positioned to direct a fluid jet into a distal opening of the exhaust lumen, the catheter further comprising a dividing wall dividing the exhaust lumen into a first exhaust lumen section and a second exhaust lumen section; a source of infusion fluid communicating with a proximal end of the infusion lumen; a fluid control device fluidly coupled between the catheter and the source of infusion fluid, the fluid control device being adapted to regulate a flow rate of infusion fluid from the source of infusion fluid to the infusion lumen of the catheter, wherein the high pressure tube extends through the infusion lumen of the catheter body; a recirculation channel positioned in the first exhaust lumen section and configured to recirculate fluid from within the first exhaust lumen section and into a body lumen of a patient; and a filter positioned in the first exhaust lumen section and upstream of the recirculation channel, the filter being sized to prevent passage of solid particles into the recirculation channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A thrombectomy catheter system comprising:
-
a catheter including a catheter body and a high pressure tube, the catheter body defining an exhaust lumen and an infusion lumen, and the high pressure tube having a nozzle orifice positioned to direct a fluid jet into a distal opening of the exhaust lumen, the catheter further comprising a dividing wall dividing the exhaust lumen into a first exhaust lumen section and a second exhaust lumen section; a source of infusion fluid communicating with a proximal end of the infusion lumen; a fluid control device fluidly coupled between the catheter and the source of infusion fluid, the fluid control device being adapted to regulate a flow rate of infusion fluid from the source of infusion fluid to the infusion lumen of the catheter, wherein the high pressure tube extends through the infusion lumen of the catheter body; means for recirculating fluid from within the first exhaust lumen section and into a body lumen of a patient; and a filter positioned in the first exhaust lumen section and upstream of the means for recirculating the fluid, the filter being sized to prevent passage of solid particles into the means for recirculating the fluid.
-
-
16. A thrombectomy catheter system comprising:
-
a catheter including a catheter body and a high pressure tube, the catheter body defining an exhaust lumen and an infusion lumen, and the high pressure tube having a nozzle orifice positioned to direct a fluid jet into a distal opening of the exhaust lumen; a source of infusion fluid communicating with a proximal end of the infusion lumen; a fluid control device fluidly coupled between the catheter and the source of infusion fluid, the fluid control device being adapted to regulate a flow rate of infusion fluid from the source of infusion fluid to the infusion lumen of the catheter, wherein the high pressure tube extends through the infusion lumen of the catheter body and defines a high pressure fluid supply lumen separate from the infusion lumen, wherein the infusion lumen is configured to deliver the infusion fluid through an infusion opening different from the nozzle orifice of the high pressure tube, and wherein the infusion opening is different from the distal opening of the exhaust lumen; and a recirculation channel configured to recirculate fluid from the exhaust lumen and into a body lumen of a patient.
-
Specification