Devices and methods for facilitating guidewire re-entry into a true lumen
AssigneeTruVue, Inc.
InventorKhaldoon ALASWAD
Life of this patent
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Abstract
Apparatuses and methods for facilitating reentry of a guidewire into a true lumen may include an elongate shaft having a proximal end and a distal end, and an intravascular ultrasound (IVUS) catheter engagement region (e.g., capsule) coupled to the distal end of the elongate shaft. An IVUS imaging window may be disposed in a sidewall of the IVUS engagement region. The IVUS engagement region may be configured to receive an IVUS catheter so that the IVUS catheter may image through the window to assist in imaging the vessel and guiding and/or confirming reentry of a guidewire into the true lumen of the vessel.
Claims23
A system for facilitating reentry of a guidewire into a true lumen, the system comprising:
- an elongate shaft having a proximal end and a distal end and a reentry guidewire lumen extending therethrough, the reentry guidewire lumen having an exit port at a distal end region of the elongate shaft;
- an intravascular ultrasound catheter (IVUS) engagement region, configured as a capsule, coupled to the distal end of the elongate shaft;
- and
- an IVUS imaging window disposed in a sidewall of the capsule, wherein the capsule is configured to receive an intravascular ultrasound (IVUS) catheter to orient the IVUS catheter to image through the IVUS imaging window.
A method for facilitating reentry of a guidewire into a true lumen of a vessel, the method comprising:
- advancing an elongate shaft with a capsule toward an occlusion in the vessel;
- advancing the capsule through a subintimal space of the vessel and
- positioning the capsule distal of the occlusion;
- disposing an intravascular ultrasound (IVUS) catheter in the capsule;
- re-entering a guidewire from the subintimal space into a true lumen of the vessel while imaging the guidewire with the IVUS catheter to ensure the guidewire is positioned and advanced correctly.
A system for facilitating reentry of a guidewire into a true lumen, the system comprising
- an elongate shaft having a proximal end and a distal end;
- a reentry guidewire lumen extending between the proximal end and a distal end, the reentry guidewire lumen configured to slidably receive a reentry guidewire;
- an exit port fluidly connected to the reentry guidewire lumen at a distal end region of the elongate shaft;
- an intravascular ultrasound (IVUS) lumen extending between the proximal end and the distal end of the elongate shaft, the IVUS lumen configured to slidably receive an IVUS catheter;
- and
- an IVUS imaging window disposed in a sidewall of the elongate shaft in communication with the IVUS lumen and distal or adjacent to the exit port.
(canceled)
Dependencies are inferred from the claim text.