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改善磨削效率的旋磨式阻塞物切除裝置及方法
专利权人:
发明人:
申请号:
HK12105655.1
公开号:
HK1164674A
申请日:
2012.06.11
申请国别(地区):
HK
年份:
2012
代理人:
摘要:
The invention provides a rotational atherectomy system, device and method having, in various embodiments, a flexible, elongated, rotatable drive shaft with at least one eccentric abrading head attached thereto, wherein the abrading head comprises at least one groove thereon. The eccentric grooved abrading comprises a tissue removing surface--typically an abrasive surface and/or at least one groove. Preferably the eccentric enlarged abrading head has a center of mass spaced radially from the rotational axis of the drive shaft, facilitating the ability of the device to open the stenotic lesion to a diameter substantially larger than the outer diameter of the enlarged abrading head when operated at high speeds. The groove(s) provide improved efficacy in the abrasion of non-calcified and/or soft tissue as well as provide a means for breaking the hydraulic wedge between the abrading head and the stenotic tissue.
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中国工程科技知识中心
来源网址:
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