Thrombectomy device with multi-layered rotational wire
First Claim
1. In a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel, the apparatus having a flexible sheath and a wire positioned within the flexible sheath, the wire and flexible sheath being relatively movable so the wire has a first configuration and a second deployed configuration, the wire being sinuous in configuration and assuming its sinuous configuration when in the deployed configuration and having a straighter configuration in the first configuration, the wire being operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material, the improvement comprising the wire formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, a distal portion of the outer wire extending distal of the inner core and progressively tapering towards a distal end to form a tapered region.
14 Assignments
0 Petitions
Accused Products
Abstract
An improvement to a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel having a wire and flexible sheath relatively movable, wherein the wire is sinuous in configuration and assumes its sinuous configuration when in the deployed configuration and has a straighter configuration in the first configuration. The wire is operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material. The improvement to the thrombectomy apparatus comprises the wire being formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, wherein a distal portion of the outer wire extends distal of the inner core and progressively tapers towards a distal end to form a tapered region.
283 Citations
15 Claims
- 1. In a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel, the apparatus having a flexible sheath and a wire positioned within the flexible sheath, the wire and flexible sheath being relatively movable so the wire has a first configuration and a second deployed configuration, the wire being sinuous in configuration and assuming its sinuous configuration when in the deployed configuration and having a straighter configuration in the first configuration, the wire being operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material, the improvement comprising the wire formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, a distal portion of the outer wire extending distal of the inner core and progressively tapering towards a distal end to form a tapered region.
Specification