A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip
configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging …

A method and apparatus of automatically locating in an image of a blood vessel the lumen
boundary at a position in the vessel and from that measuring the diameter of the vessel …

The present invention relates to:(1) guidewire support/placement catheters;(2)
support/placement catheters with imaging;(3) atherectomy catheters,(4) atherectomy …

Abstract Catheter-based Optical Coherence Tomography (OCT) systems utilizing an optical
fiber that is positioned off-axis of the central longitudinal axis of the catheter have many …

In part, the invention relates to an image data collection system. The system can include an
interferometer having a reference arm that includes a first optical fiber of length of L1 and a …

BACKGROUND Optical Coherence Tomography (OCT) is a promising diagnostic imaging
technology that utilizes advanced photo nics and fiber optics to obtain cross-sectional …

Described herein are atherectomy catheters, systems and methods that include a distal tip
region that may be moved laterally so that its long axis is parallel with the long axis of the …

Described herein are guidewire positioning and support devices, method for using them,
method of treating a subject using them, and systems including such guidewire positioning …

Described herein are atherectomy catheters, systems and methods that include
longitudinally displaceable drive shafts that drive actuation of one or more cutters at the …

In one aspect, the invention relates to a computer-imple mented method of triggering optical
coherence tomography data collection. The method includes collecting optical coherence …