| 摘要 |
<p>Embodiments of the invention include a catheter, comprising: a lumen havi ng a distal end and a proximal end; one or more marker bands circumferential ly arranged around the lumen; a support structure extending from the proxima l end of the lumen to the most distal marker band; and a top jacket position ed annularly with respect to the lumen, comprising five durometers of materi al, wherein the support structure and top jacket alternate along the length of the catheter.</p> |
