Rotational thrombectomy wire

1. A rotational thrombectomy wire for breaking up vascular thrombus or other obstructive material in a cerebral artery of a patient, the thrombectomy wire comprising a proximal portion, a distal portion, a core dimensioned for insertion through the cerebral artery of the patient and a cable extending distally of the core, the cable having a proximal region stiffer than a distal region, and a cover positioned over the cable, the thrombectomy wire further having a coil at a distal tip thereof, the distal portion of the thrombectomy wire having a non-linear configuration and insertable through a sheath wherein the distal portion assumes a more linear configuration for delivery into the cerebral artery, and the thrombectomy wire having a proximal portion for operatively coupling to a motor by a clinician, the thrombectomy wire rotatable by the motor to macerate thrombus within the cerebral artery.

2. The thrombectomy wire of claim 1 , wherein the coil at the distal tip has a covering thereover.

3. The thrombectomy wire of claim 1 , further comprising a torque tube and a covering material over the torque tube.

4. The thrombectomy wire of claim 1 , wherein the cover overlies a portion of the core.

5. The thrombectomy wire of claim 1 , wherein the non-linear configuration of the thrombectomy wire is a sinuous configuration having a first amplitude and a second amplitude distal of the first amplitude, the second amplitude being greater than the first amplitude.

6. The thrombectomy wire of claim 5 , wherein the thrombectomy wire is removably coupled at a proximal end to a motor drive shaft of the motor.

7. The thrombectomy wire of claim 1 , wherein the cable has multiple layers of polymeric material positioned thereover, wherein the layers create a larger diameter proximal region.

8. The thrombectomy wire of claim 1 , wherein the thrombectomy wire is removably coupled at a proximal end to a motor drive shaft of the motor.

9. The thrombectomy wire of claim 1 , further comprising a second coil positioned over a distal section of the core and spaced proximally of the coil at the distal tip.

10. The thrombectomy wire of claim 1 , wherein the thrombectomy wire is dimensioned for insertion into the circle of Willis.

11. The thrombectomy wire of claim 1 , wherein the thrombectomy wire is insertable and movable within a lumen of a housing, the housing having a suction port extending therefrom and communicating with the lumen.

12. The thrombectomy wire of claim 1 , in combination with an introducer sheath having a lumen, the thrombectomy wire slidable within the lumen of the introducer sheath, and a connector having a distal portion and a proximal portion, the distal portion connectable to the introducer sheath and the proximal portion connectable to a motor housing, the wire operably connectable to the motor positioned within the motor housing.

13. The thrombectomy wire of claim 1 , in combination with a housing having a suction arm and a lumen configured to remove particles removed from the cerebral artery by rotation of the thrombectomy wire.

14. The thrombectomy wire of claim 1 , wherein the thrombectomy wire is operatively couplable to the motor by the clinician subsequent to insertion of the thrombectomy wire into the patient.

15. The thrombectomy wire of claim 1 , wherein the thrombectomy wire is operatively coupled to the motor by a connector tube attachable at a proximal end to a motor housing containing the motor.

16. The thrombectomy wire of claim 1 , wherein the motor is decouplable by the clinician from the thrombectomy wire.

17. The thrombectomy wire of claim 1 , in combination with a catheter having a valve, and the thrombectomy wire is insertable through the valve.