ROTATABLE MEDICAL DEVICE

摘要

A rotational atherectomy device including a drive shaft rotatably extending through an outer tubular member to rotate a cutting member positioned at a distal end thereof. The rotational atherectomy device further includes an elongate penetrator extendable distal of the cutting member a predetermined maximum distance and configured to stabilize the cutting member as the cutting member engages an occlusion to control the trajectory and advancement of the cutting member through the occlusion.

主权项

1. A rotational atherectomy device, comprising:
an outer tubular member having a lumen extending therethrough; a cutting member rotationally positioned at a distal end of the outer tubular member; a drive shaft extending through the lumen of the outer tubular member, the drive shaft rotatable relative to the outer tubular member to rotate the cutting member; and an elongate penetrator extendable distal of the cutting member a maximum distance, wherein the maximum distance is predetermined.