Patent ID: 8690907
Filing Date: 2014-04-08
Classification: A61B,A61M,D04C,D10B,Y10T

Abstract:
1. A method of treating a thrombus in a vessel with self-expanding bulbs, the method comprising: advancing a microwire in the vessel and through a guide catheter, wherein advancing the microwire includes crossing the thrombus with a distal end of the microwire; advancing a microcatheter in the vessel and over the microwire, wherein advancing the microcatheter includes crossing the thrombus with a distal end of the microcatheter; after advancing the microcatheter, removing the microwire from the vessel; after removing the microwire, inserting a thrombectomy device in a radially compressed state into the microcatheter, the thrombectomy device including: after inserting the thrombectomy device into the microcatheter, advancing the thrombectomy device in the vessel and through the microcatheter proximate to the distal end of the microcatheter, wherein advancing the thrombectomy device includes crossing the thrombus; after advancing the thrombectomy device, maintaining a location of the proximal portion of the thrombectomy device while proximally retracting the microcatheter, wherein upon being unsheathed from the microcatheter at least some of the self-expanding bulbs of the elongate support structure of the thrombectomy device self-expand from a radially compressed state to a radially expanded state, wherein retracting the microcatheter is at least until the distal end of the microcatheter is proximal to the thrombus; after retracting the microcatheter, torsionally rasping the thrombectomy device including removing portions of the thrombus attached to an endothelium wall, entrapping the thrombus in the radially expanded distal portion of the thrombectomy device, and collecting emboli in the radially expanded distal portion of the thrombectomy device; and after torsionally rasping the thrombectomy device, retracting at a similar rate the microcatheter and the proximal portion of the thrombectomy device.