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Spacerless artificial disc replacements
专利权人:
David Tompkins;Bret A. Ferree
发明人:
Bret A. Ferree,David Tompkins
申请号:
US12789925
公开号:
US08277507B2
申请日:
2010.05.28
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial.
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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