Dynamic aspiration catheter and methods
AssigneeMicroVention, Inc.
InventorsRonak Dholakia, Hussain Rangwala
Life of this patent
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Abstract
A distal aspiration catheter comprises catheter body having a central lumen and at least one luminal channel. An aspiration source is configured to attach to a proximal end/luer hub of the central lumen. Each luminal channel includes one mandrel and a distal portion of the mandrel extends into a distal portion in the central lumen. When the aspiration source is activated, a clot/emboli lodged in a blood vessel is partially ingested into the distal portion of the central lumen. The distal portion of the mandrel can move into the partially ingested clot to induce clot fatigue. The fatigued clot can be removed completely by a single pass of the distal aspiration catheter.
Claims23
A clot removal device, comprising:
- a catheter body;
- a first lumen located within the catheter body and opening at a distal end of the catheter body;
- the first lumen configured for connection to an aspiration source;
- a second lumen opening within a distal region of the first lumen and at a proximal region of the catheter body;
- a first elongated mandrel positioned within the second lumen and configured to move into the first lumen so as to fatigue a clot at least partially positioned within the first lumen.
A clot removal catheter, comprising:
- a catheter body having an aspiration lumen opening at a distal end of the catheter body;
- a first mandrel lumen extending through the catheter body and opening within a distal region of the aspiration lumen and at a proximal region of the catheter body;
- the first mandrel lumen being configured to allow passage of a first mandrel and direct a distal end of the first mandrel into a distal portion of the aspiration lumen to fatigue a clot that is partially pulled into the aspiration lumen.
A method of removing a clot from a blood vessel of a patient, comprising:
- navigating a distal end of a catheter adjacent to the clot;
- activating an aspiration source attached to a proximal end of an aspiration lumen within the catheter;
- at least partially ingesting the clot into a distal end of the aspiration lumen;
- fatiguing the clot;
- and
- moving the clot partially into the aspiration lumen.
Dependencies are inferred from the claim text.