公开(公告)号：US20170143502A1

公开(公告)日：2017-05-25

申请号：US15234923

申请日：2016-08-11

申请人： Amnon YADIN ,  Isador Harry LIEBERMAN ,  Adi DAGAN ,  Yoram FLEISCHMANN

发明人： Amnon YADIN ,  Isador Harry LIEBERMAN ,  Adi DAGAN ,  Yoram FLEISCHMANN

IPC分类号： A61F2/44 ,  B29C67/00

CPC分类号： B33Y80/00 ,  A61F2/4425 ,  A61F2002/30125 ,  A61F2002/30143 ,  A61F2002/30156 ,  A61F2002/30172 ,  A61F2002/3023 ,  A61F2002/30568 ,  A61F2002/30841 ,  A61F2002/30891 ,  A61F2002/30904 ,  A61F2002/30917 ,  A61F2210/0014 ,  A61F2310/00023 ,  A61F2310/00029 ,  B29C64/153 ,  B29L2031/7532 ,  B33Y10/00 ,  B33Y50/02

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.