Rotational thrombectomy wire coupler

摘要

An assembly for breaking up vascular thrombus or other obstructive material including a motor housing having a motor, a motor shaft extending from the motor, a first housing positioned at a distal end of the motor shaft, a rotational thrombectomy wire and a second housing positioned at a proximal end of the wire. The first housing has a first magnet positioned therein and recessed from the distal edge of the first housing which has a first plurality of teeth. The second housing has a second magnet positioned therein and recessed from a proximal edge of the second housing which has a second plurality of teeth intermeshing with the first plurality of teeth when the wire is coupled to the motor shaft. The first and second plurality of teeth slip when a torque of the motor shaft exceeds a predetermined value.

主权项

1. An assembly for breaking up vascular thrombus or other obstructive material, the assembly comprising:
a motor housing having a motor contained therein; a motor shaft extending from the motor; a first housing positioned at a distal end of the motor shaft, the first housing having a first magnet positioned therein and recessed from a distal edge of the first housing, the distal edge of the first housing having a first plurality of teeth; a rotational thrombectomy wire; and a second housing positioned at a proximal end of the thrombectomy wire, the second housing having a second magnet positioned therein and recessed from a proximal edge of the second housing, the proximal edge having a second plurality of teeth intermeshing with the first plurality of teeth when the thrombectomy wire is coupled to the motor shaft, the first and second magnets providing an attractive force between the first and second housings to intermesh the first plurality of teeth and the second plurality teeth so rotation of the first housing rotates the second housing, the first and second plurality of teeth slipping when a torque of the motor shaft exceeds a predetermined value.