Patent application number | Description | Published |
20080275383 | Miniature cross stream thrombectomy catheter - A miniature cross stream thrombectomy catheter useful in small blood vessel thrombectomy procedures. An annulus near the distal end of the miniature cross stream thrombectomy catheter is formed between a hypo-tube and a proximally directed bore of a concentrically aligned flow director whereby jet orifices in the hypo-tube communicate with the annulus to direct jet flows of saline or other fluid around and about the annulus and to be directed proximally from the annulus to pass through one or more outflow orifices and thence to pass through one or more inflow orifices thereby creating an ablation flow therebetween which loosens and carries away thrombotic materials from the walls of a blood vessel. | 11-06-2008 |
20080289181 | METHOD OF MANUFACTURING A MINIATURE FLEXIBLE THROMBECTOMY CATHETER - The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube. | 11-27-2008 |
20080319386 | Forwardly directable fluid jet crossing catheter - A forwardly directable fluid jet crossing catheter having a positionable jet body which can be longitudinally and rotationally positioned in order to direct a fluid jet stream to impinge, break through, and cross a chronic total occlusion. The distal end of the catheter includes a tip of super-elastic material having a flexible bend aligned within the distal portion of a sheath which tip is directable in response to the longitudinal and rotational orientation of a positionable jet body, whereby a fluid jet stream can be controlled in angular and rotational directions. | 12-25-2008 |
20090156983 | RHEOLYTIC THROMBECTOMY CATHETER WITH SELF-INFLATING DISTAL BALLOON - The devices of the present disclosure are rheolytic thrombectomy catheters with a self-inflating distal balloon. A self-inflating balloon is located distal to an inflow gap or orifice and distal to a fluid jet emanator, which self-inflating balloon is inflated and expanded by the utilization of internal operating forces consisting of forwardly directed high velocity fluid jet streams and/or entrained thrombus particulate therein. The self-inflating balloon, when inflated, impinges on the wall of the blood vessel to isolate sections of the blood vessel distal and proximal to the inflated balloon in order to prevent flow of thrombus particulate, fluids and the like distal to the self-inflating balloon and to provide a stagnant nonflow region proximal to the self-inflating balloon. The devices of the present disclosure also provide for a uniform spacing of the catheter tube with respect to the thrombus and/or wall of the blood vessel. | 06-18-2009 |
20090171267 | RHEOLYTIC THROMBECTOMY CATHETER WITH SELF-INFLATING PROXIMAL BALLOON WITH DRUG INFUSION CAPABILITIES - The present disclosure involves a rheolytic thrombectomy catheter with a self-inflating proximal balloon having drug infusion capabilities. A self-inflating balloon having a plurality of outflow orifices located about the peripheral circumference thereof is located proximal to an inflow gap or orifices and a fluid jet emanator and which balloon is inflated and expanded by internal operating pressures to uniformly space and position the outflow orifices of the self-inflating balloon in close proximity to or in intimate contact with the thrombus or walls of the blood vessel. Devices of the present disclosure can be used for the purposes of thrombectomies, embolectomies, thrombus or vessel dilation and for the delivery of drugs to a thrombus or vessel site. | 07-02-2009 |
20100268264 | INTRAVASCULAR GUIDEWIRE FILTER SYSTEM FOR PULMONARY EMBOLISM PROTECTION AND EMBOLISM REMOVAL OR MACERATION - An intravascular emboli capture and retrieval system for intravascular embolism protection and embolism removal or maceration. Guidewire mounted proximally and distally located multiple opening filters are deployed within the vasculature and used to part, divide and macerate embolic debris and to capture such embolic debris within the confines thereof. A deployable flexible preformed memory shaped capture sleeve is alternatively used to collapse one or more filters and embolic debris therein for subsequent proximal withdrawal from the vasculature. | 10-21-2010 |
20100312223 | RAPID EXCHANGE FLUID JET CATHETER AND METHOD - Catheters including guidewire tubes having a limited length and methods of using the catheters are described. The catheters may be delivered over guidewires in procedures that are commonly referred to as rapid-exchange delivery. In some embodiments, the catheters may be miniature flexible thrombectomy catheters that may be used to remove thrombus or other unwanted material from a body blood vessel or other small regions of body cavities in which the distal portion of the catheter has smaller external dimensions than the larger proximal portion | 12-09-2010 |
20110015564 | Direct Stream Hydrodynamic Catheter System - A direct stream hydrodynamic catheter system is provided for the removal of thrombus, lesions and the like including provisions for the infusion of drugs, lysing fluids and the like into a blood vessel. Physician controlled high powered direct fluid jet streams emanate from a fluid jet emanator in the form of robust radially directed fluid jet streams to impinge upon and ablate difficult and strong thrombus or lesions within a blood vessel. Effluent aspiration is controlled by an exhaust regulator in the form of a roller pump, but effluent removal can be assistingly influenced by the fluid pressure associated with the radially directed fluid jet streams. | 01-20-2011 |
20120239065 | Enhanced Cross Stream Mechanical Thrombectomy Catheter - An enhanced cross stream mechanical thrombectomy catheter with backloading manifold having a distal end with outflow and inflow orifices at one side for producing concentrated cross stream jet flow for selective and concentrated thrombus ablation during thrombectomy procedures. The invention provides for suitable distancing of high powered ablation or suction forces from the near walls of the vasculature. Cross stream flow emanating from the one side of the distal end of the catheter resultantly urges the distal end of the catheter and thus the opposing non-orif iced side of the distal end of the catheter toward and against the vascular wall to inhibit contact of the inflow orifice with the vascular wall. Features of the invention include a geometrically configured insert to facilitate the backloading or exchange of guidewires. | 09-20-2012 |
20130131594 | BALLOON CATHETER WITH EXTERNAL DELIVERY TUBE - A balloon catheter ( | 05-23-2013 |
20130131691 | RAPID EXCHANGE FLUID JET CATHETER AND METHOD - Catheters including guidewire tubes having a limited length and methods of using the catheters are described. The catheters may be delivered over guidewires in procedures that are commonly referred to as rapid-exchange delivery. In some embodiments, the catheters may be miniature flexible thrombectomy catheters that may be used to remove thrombus or other unwanted material from a body blood vessel or other small regions of body cavities in which the distal portion of the catheter has smaller external dimensions than the larger proximal portion | 05-23-2013 |
20140005699 | CONSOLIDATED ATHERECTOMY AND THROMBECTOMY CATHETER | 01-02-2014 |
20140088610 | ENHANCED CROSS STREAM MECHANICAL THROMBECTOMY CATHETER - A thrombectomy catheter includes a catheter body having a catheter lumen. An outflow orifice is positioned along a catheter perimeter. A fluid jet emanator communicates with a high pressure tube. The fluid jet emanator includes at least one jet orifice for directing a fluid jet from the fluid jet emanator through the catheter lumen toward the outflow orifice. The fluid jet emanator provides a jet stream from the catheter body through the outflow orifice. The jet stream includes first and second stream portions. An entrainment fluid flow circuit includes at least the first stream portion, and the entrainment fluid flow circuit entrains particulate and macerates the particulate therein. An exhaust fluid flow path includes the second stream portion, and the exhaust fluid flow path draws entrained particulate from the entrainment fluid flow circuit at a location exterior to the catheter body and directs it toward the catheter proximal portion. | 03-27-2014 |
20140155830 | DIRECT STREAM HYDRODYNAMIC CATHETER SYSTEM - A direct stream hydrodynamic catheter system is provided for the removal of thrombus, lesions and the like including provisions for the infusion of drugs, lysing fluids and the like into a blood vessel. Physician controlled powered direct fluid jet streams emanate from a fluid jet emanatory in the form of robust radially directed fluid jet streams to impinge upon and ablate difficult and strong thrombus and lesions within a blood vessel. Effluent aspiration is controlled by an exhaust regulator in the form of a roller pump, but effluent removal can be assistingly influenced by the fluid pressure associated with the radially directed fluid jet streams. | 06-05-2014 |
20140214060 | CATHETER WITH A DEPLOYABLE SCRUBBING ASSEMBLY - A catheter assembly includes an inner mandrel and an outer sheath slidably coupled along the inner mandrel. The catheter assembly includes a scrubbing assembly coupled between the inner mandrel and the outer sheath. The scrubbing assembly includes a plurality of deformable struts deflectable according to movement of the inner mandrel relative to the outer sheath. The scrubbing assembly includes a proximal shoulder coupled with the outer sheath, and a distal shoulder coupled with the inner mandrel. The plurality of struts extend between the proximal and distal shoulders. The scrubbing assembly is movable between a stored configuration and a deployed configuration according to movement of the inner mandrel relative to the outer sheath. In the stored configuration the proximal and distal shoulders are remote from each other. In the deployed configuration the proximal shoulder is engaged with the distal shoulder, and the deformable struts are deflected into bristles. | 07-31-2014 |
20140277006 | THROMBECTOMY CATHETERS, SYSTEMS AND METHODS - 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. | 09-18-2014 |