William Norman,Fernando Di Caprio,Gianfranco Panarello
申请号：
US15281345
公开号：
US20170095646A1
申请日:
2016.09.30
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Certain embodiments herein relate to an extension catheter for positioning through a conventional guiding catheter into the vasculature of a patient, the extension catheter having a distal tubular member and a proximal elongated shaft coupled to the distal tubular member, wherein the proximal shaft has a length or section containing at least one discontinuous or segmented structure, and further wherein such structures that can be modified or varied to modify the torsional compliance characteristics of the device. Further embodiments relate to a multi-layer catheter having a protective wrap at or near the distal end of the catheter.
