KOHLER, Robert E.,MARTINSEN, Brad J.,YANG, Michael X.,ZHENG, Yihao,SHIH, Albert,DEOKAR, Rohit
申请号：
EP16753121
公开号：
EP3258862A4
申请日:
2016.02.19
申请国别(地区):
EP
年份:
2018
代理人:
摘要：
The present system is directed in various embodiments to rotational atherectomy systems and methods generally. More specifically, a method for methodically softening and disrupting calcification within the wall of a biological conduit or lumen. This result is achieved by use of at least one eccentric head that, during high-speed rotation within the exemplary lumen, produces a combination of a low-frequency orbital motion comprising a force that is exerted against the lumen wall, with concomitant deflection of same, and a high-frequency pulsatile frequency, also with concomitant exertion of force against the lumen wall and deflection of same. These force-driven deflections produce shockwaves within the layers of the exemplary artery's wall layers, resulting in systematic disruptions of any calcification within the intimal and/or medial layers of the subject artery. In addition, any calcification within the occlusion is also softened and disrupted, increasing compliance of the vessel and/or lesion.
