Patent ID: 9474543
Filing Date: 2016-10-25
CPC Classification: A61B,A61M

Claim Text:
1. A method for breaking up thrombus or other obstructive material in a native vessel comprising: providing a thrombectomy wire having an inner core composed of a flexible material, an at least one outer wire wound over at least a portion of the inner core forming a coil with an exterior surface extending proximally of a distalmost end of the coil, wherein the coil has a sinuous shaped portion at a distal region and the inner core has a sinuous shaped portion within the sinuous shaped portion of the coil, a polymeric material positioned over the exterior surface of at least a first portion of the coil to block interstices of the at least one outer wire, a separate distal tip component, a portion of the distal tip component positioned over the exterior surface of a second portion of the coil, and a flexible elongated polymeric tip positioned over the distal tip component and extending distally therefrom, the distal tip component extending distally of the distalmost end of the coil and extending proximally of a proximalmost end of the flexible elongated polymeric tip; delivering the thrombectomy wire to the lumen of the native vessel such that the sinuous shaped portions of the inner core and coil are in a more linear configuration within a sheath; exposing the sinuous shaped portion of the coil so the sinuous shaped portion is in a sinuous configuration; and actuating a motor operatively connected to the thrombectomy wire so the thrombectomy wire rotates about its longitudinal axis so the sinuous shaped portion of the coil contacts the inner wall of the native vessel to macerate thrombus in the vessel as the thrombectomy wire rotates.