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US 11,896,247 B2Granted
Inverting mechanical thrombectomy apparatuses
AssigneeStryker Corporation
InventorsMichael P. Wallace, E. Skott Greenhalgh, Robert Garabedian
Life of this patent
Estimating the term…
Abstract
Mechanical thrombectomy apparatuses (devices, systems, etc.) and methods for deploying and/or positioning them within a vessel and/or using them and/or removing a thrombus, e.g., clot, from within a vessel using them.
Claims18
An apparatus for removing a material from a lumen, the apparatus comprising:
- an inversion support catheter having a distal end and a distal end opening;
- a puller within the inversion support catheter;
- a flexible tube that is coupled at a first end region to the puller, wherein a second end region of the flexible tube and at least a first portion of the flexible tube extends over an outer surface of the inversion support catheter, wherein the first portion of the flexible tube is held in a compressed configuration on the outer surface of the inversion support catheter by a releasable attachment that is configured to secure the second end region of the flexible tube to a longitudinal position on the inversion support catheter;
- and
- wherein the puller is configured to be withdrawn proximally through the inversion support catheter to pull the flexible tube proximally within the inversion support catheter so that the flexible tube inverts over the distal end opening.
2 more elements
An apparatus for removing a material from a lumen, the apparatus comprising:
- an inversion support catheter having a distal end and a distal end opening;
- a puller within the inversion support catheter;
- a flexible tube that is coupled at a first end region of the flexible tube to a distal end region of the puller that is proximal to the distal end of the puller, wherein a second end region of the flexible tube and at least a first portion of the flexible tube extends over an outer surface of the inversion support catheter, wherein the first portion of the flexible tube is held in a compressed configuration on the outer surface of the inversion support catheter by a releasable attachment securing the second end region of the flexible tube relative to the inversion support catheter;
- and
- wherein the puller is configured to be withdrawn proximally through the inversion support catheter to pull the flexible tube proximally within the inversion support catheter so that the flexible tube inverts over the distal end opening.
2 more elements
A method of removing a material from a lumen, the method comprising:
- positioning a distal end of an apparatus adjacent to the material within the lumen, wherein the apparatus includes a flexible tube that extends along an outer surface of an inversion support catheter and inverts over a distal end of the inversion support catheter, wherein the flexible tube is held in a longitudinally compressed configuration over the outer surface of the inversion support catheter by a releasable attachment;
- pulling a first end of the flexible tube proximally within the inversion support catheter to roll the flexible tube over the distal end of the inversion support catheter so that the flexible tube inverts into the inversion support catheter and draws the material into the inversion support catheter.
Dependencies are inferred from the claim text.