| 摘要 |
<p>A myocardial revascularization system that includes a laser energy source (12), an outer guide member providing access to a patient's heart (95), and an optical fiber (14). The optical fiber is coupled to receive laser energy pulses from the source, is slidably located within the guide member, and is extendible from the distal end of the guide member. A drive motor (22) is connected to the fiber to automatically move the distal end of the optical fiber with respect to the distal end of the guide member. A controller (30) controls the drive motor to automatically move the fiber in synchronism with firing of the laser energy, and automatically calibrates the position of the distal end of the fiber with respect to the distal end of the catheter.</p> |
