CATHETER

摘要

Embodiment of a catheter for intravascular procedures are described. The embodiments described include a catheter with various elements arranged about a central axis. The elements include an inner shaft, an outer shaft, and an actuation mechanism. In one embodiment, the inner shaft forms the actuation mechanism, and includes a flexible hypotube. The flexible hypotube further forms a lumen that can accommodate, for example, a guidewire. The actuation mechanism actuates, or deploys, a working element at the distal end of the catheter. In one embodiment, the working element includes a tissue spreading member for disrupting an occlusion. In one embodiment, the catheter includes an imaging element that helps the operator of the catheter determine where the working element is located with respect to tissue.