COAXIAL CONTRA-ROTATING CUTTING ASSEMBLY

摘要

The invention generally relates to intraluminal procedures, and, more particularly, to a contra-rotating cutting assembly for use with an atherectomy device to remove occlusive material from an occluded lumen, such as a blood vessel or other body lumen. The contra-rotating cutting assembly includes a rotatable housing having a distal end, an opposing proximal end and a lumen extending between the distal and proximal ends. The housing is configured to rotate about a longitudinal axis in a first direction. The cutting assembly further includes a rotatable cutter head positioned within at least a portion of the lumen of the housing and in coaxial alignment with the housing. The cutter head is configured to rotate about the longitudinal axis in a second direction opposite the first direction.

主权项

1. A contra-rotatable cutting assembly for cutting occlusive material from within a body lumen, said cutting assembly comprising:
a rotatable housing having a distal end, an opposing proximal end and a lumen extending between the distal and proximal ends, said housing configured to rotate about a longitudinal axis in a first direction; and a rotatable cutter head positioned within at least a portion of the lumen of said housing and in coaxial alignment with said housing, said cutter head configured to rotate about said longitudinal axis in a second direction opposite the first direction.