| 摘要 |
<p>A recanalization apparatus (11) for use in crossing a stenosis forming a total occlusion in a vessel formed by a vessel wall. The apparatus includes an outer tubular sheath (12) and an inner flexible tubular sheath (13) having a sharpened distal tip (66). The inner sheath being of a length such that when the sharpened tip is exposed past the distal end of the outer sheath, the proximal end of the inner sheath extends proximally of the proximal end of the outer sheath. An imaging guide wire (14) is slidably mounted in the lumen of the inner sheath and has a transducer (81) mounted on its distal extremity.</p> |
