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REMPLACEMENT DE DISQUE INTERVERTÉBRAL
专利权人:
Agada Medical Ltd.
发明人:
YADIN, Annon,LIEBERMAN, Isador Harry,DAGAN, Adi,FLEISCHMANN, Yoram
申请号:
EP17840294
公开号:
EP3496636A4
申请日:
2017.08.10
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
According to some embodiments of the invention, an intervertebral disc replacement includes a first layer having a lower surface for contacting a first vertebral bone, a second layer coupled to the first layer, the second layer comprising a plurality of compressible column springs, and a third layer coupled to the second layer, the third layer having an upper surface for contacting a second vertebral bone. Each of the plurality of compressible column springs comprises a plurality of stacked coils, and each of the plurality of stacked coils has a spring constant (K). At least one of the plurality of compressible column springs includes a first coil having a first spring constant and a second coil comprising a second spring constant, wherein the first spring constant is different from the second spring constant.
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中国工程科技知识中心
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