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Catheter apparatus with telescoping lumen catheters and its use in methods for treating vasculatures
专利权人:
发明人:
Mehrdad Farhangnia,Mark C. Yang,Mark Taber
申请号:
US14813171
公开号:
US10130795B2
申请日:
2015.07.30
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The invention provides for methods and catheter apparatus for passing one or more guidewires (via the use of one or more telescoping guidewire lumens) through a chronic total occlusion of a vasculature. The catheter apparatus may include: a catheter shaft having a distal end one or more telescoping guidewire lumen catheters passing longitudinally through the shaft, wherein the one or more guidewire lumen catheters are capable of telescoping beyond the distal end of the catheter shaft an expansible distal portion of the shaft and a retractable sheath covering at least a portion of the expansible distal portion of the shaft, wherein retracting the retractable sheath from the expansible distal portion of the shaft directly activates the expansible distal portion of the shaft causing expansion of the expansible distal portion of the shaft.
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中国工程科技知识中心
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