Atherectomy devices and methods

摘要

The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.

主权项

1. A device for removing material from a body lumen, the device comprising:
a catheter having a proximal end, a distal end, and a catheter lumen extending therethrough; a cutter assembly comprising:
a cutter including a cutting edge; anda cylindrical housing comprising a curved surface, the housing having an opening in the curved surface; and a torque shaft extending through the catheter lumen and coupled to the cutter for rotating the cutter relative to the catheter and wherein, as the cutter rotates, the cutting edge defines an arc and a peak of the arc protrudes through the opening.