Devices and methods for removal of acute blockages from blood vessels
First Claim
Patent Images
1. A system for removing a clot from a vessel, the system comprising:
- an expandable clot retrieval device having a collapsed delivery configuration and an expanded deployed configuration;
a microcatheter having a proximal end and a distal end and defining a lumen therein, the expandable clot retrieval device being positioned within the lumen of the microcatheter in the collapsed delivery configuration;
a second catheter having a proximal end and a distal end and defining a lumen therein, the second catheter being an aspiration catheter comprising an expansile distal tip comprising a constricted delivery configuration and an expanded deployed configuration comprising a larger diameter than a diameter of the second catheter proximal thereof;
a self-expandable clot receptor device comprising;
a plurality of struts distally connected at crowns formed with atraumatic ends and proximally terminating at a proximal shaft integrally formed therewith,the proximal shaft extending proximally in the second catheter and having a sheathed configuration within the lumen of the second catheter and expanded configuration extending distally of the second catheter caused by distally advancing the proximal shaft,wherein, in the expanded configuration, a distal end of the clot receptor device includes a larger diameter than a diameter of a proximal end of the clot receptor device and being larger than the diameter of the expansile distal end of the second catheter.
1 Assignment
0 Petitions
Accused Products
Abstract
A rapid exchange (RX) catheter may provide a proximal seal against a guide catheter inner lumen so that aspiration may be applied through a guide catheter. The catheter may include an exit port that defines a transfer port for aspiration and may enable minimal frictional engagement with the guide catheter proximal of the exit port. Aspiration can be applied to the lumen of the guide catheter and may be directed to and effective at the tip of the RX aspiration catheter. A tip of the RX catheter may facilitate aspiration and retrieval of the clot by expanding under load and can also partially or fully occlude the vessel.
-
Citations
16 Claims
-
1. A system for removing a clot from a vessel, the system comprising:
-
an expandable clot retrieval device having a collapsed delivery configuration and an expanded deployed configuration; a microcatheter having a proximal end and a distal end and defining a lumen therein, the expandable clot retrieval device being positioned within the lumen of the microcatheter in the collapsed delivery configuration; a second catheter having a proximal end and a distal end and defining a lumen therein, the second catheter being an aspiration catheter comprising an expansile distal tip comprising a constricted delivery configuration and an expanded deployed configuration comprising a larger diameter than a diameter of the second catheter proximal thereof; a self-expandable clot receptor device comprising; a plurality of struts distally connected at crowns formed with atraumatic ends and proximally terminating at a proximal shaft integrally formed therewith, the proximal shaft extending proximally in the second catheter and having a sheathed configuration within the lumen of the second catheter and expanded configuration extending distally of the second catheter caused by distally advancing the proximal shaft, wherein, in the expanded configuration, a distal end of the clot receptor device includes a larger diameter than a diameter of a proximal end of the clot receptor device and being larger than the diameter of the expansile distal end of the second catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A system for removing a clot from a vessel, the system comprising:
-
an expandable clot retrieval device having a collapsed delivery configuration and an expanded deployed configuration, the clot retrieval device comprising a framework of struts forming a mesh-like porous body comprising a collapsed delivery configuration capable of being stored in a microcatheter and an expanded deployed configuration when delivered to an occlusion and distal of the microcatheter; a microcatheter having a proximal end and a distal end and defining a lumen therein, the expandable clot retrieval device being positioned within the lumen of the microcatheter in the collapsed delivery configuration; an aspiration catheter having a proximal end and a distal end and defining a lumen therein; a self-expandable clot receptor device comprising; a plurality of struts distally connected at crowns formed with atraumatic ends and proximally terminating at a proximal shaft integrally formed therewith, the proximal shaft extending proximally in the aspiration catheter and having a sheathed configuration within the lumen of the aspiration catheter and expanded configuration extending distally of the aspiration catheter caused by distally advancing the proximal shaft, wherein, in the expanded configuration, a distal end of the clot receptor device includes a larger diameter than a diameter of a proximal end of the clot receptor device and being larger than a diameter of the distal end of the aspiration catheter.
-
Specification