Patent ID: 8644913
Filing Date: 2014-02-04
Classification: A61B,F04C

Abstract:
1. A catheter device for crossing occlusions, the device comprising: an elongate body; a central lumen extending within the elongate body from a proximal end of the elongate body to a distal end of the elongate body; a rotatable tip at the distal end of the elongate body and configured to rotate in a first direction and a second direction relative to the elongate body; an optical coherence tomography (OCT) imaging sensor comprising an optical fiber coupled with the rotatable tip and configured to rotate therewith, wherein the optical fiber is configured to wrap around the central lumen within the elongate body as the rotatable tip rotates; and a drive mechanism configured to continuously and automatically alternate rotation of the rotatable tip between the first direction and the second direction a plurality of times, each rotation in the first and second direction including a substantially equivalent number of turns.