Way through the vascular catheter system and CTO lesions

摘要

Disclosed is possible to visually recognize the CTO lesions, can penetrate the CTO lesions effectively, and to provide a sufficiently thin blood vessel catheter system that can be inserted through the narrow blood vessels. A one lumen to provide a catheter that can be inserted through any of the optical fiber catheter 4 and guide wire 3. Insert the catheter (or guidewire 3) to the CTO lesion 8,81 referring to the inserted image the fiber optic catheter 4 into the lumen, followed by inserting the guide wire 3 into the lumen extending through the CTO lesion 8,81. .BACKGROUND 7