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具有橫放質心的動脈粥樣硬化切除術裝置用多材料研磨頭
专利权人:
发明人:
申请号:
HK12101572.0
公开号:
HK1161062A
申请日:
2012.02.17
申请国别(地区):
HK
年份:
2012
代理人:
摘要:
An abrading head for a high-speed rotation atherectomy device is disclosed. The head has its center of mass laterally displaced from the rotational axis of the drive shaft. As the drive shaft spins, centrifugal force forces the abrading head radially outward. At high speeds, and the abrasive portion of the head may subtend an abrading cylinder larger than at low speeds or at rest. The abrading head has two components, each having a different density. The connection portion may be an incomplete cylinder, which fastens onto the drive shaft, and may be a relatively low density metal, such as stainless steel. The eccentric portion may be a relatively high density metal, such as tungsten or tantalum, and is attached to the connection portion. The eccentric portion has all or most of its mass on one side of the rotation axis of the drive shaft, providing a larger separation between the center of mass of the abrading head and the rotational axis of the drive shaft than if the abrading head were made from only one material.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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