- 专利标题: INTERVERTEBRAL DISC REPLACEMENT
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申请号: US15234923申请日: 2016-08-11
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公开(公告)号: US20170143502A1公开(公告)日: 2017-05-25
- 发明人: Amnon YADIN , Isador Harry LIEBERMAN , Adi DAGAN , Yoram FLEISCHMANN
- 申请人: Amnon YADIN , Isador Harry LIEBERMAN , Adi DAGAN , Yoram FLEISCHMANN
- 主分类号: A61F2/44
- IPC分类号: A61F2/44 ; B29C67/00
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.
公开/授权文献
- US10390959B2 Intervertebral disc replacement 公开/授权日:2019-08-27
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