Edward VRESILOVIC,Michael F. KEANE,Alastair J.T. CLEMOW,Nigel G. SMITH
申请号：
US13351531
公开号：
US20120143338A1
申请日:
2012.01.17
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A nucleus pulposus of an intervertebral disc is supplemented or replaced by a physiologically fully hydrated solid hydrogel intervertebral body comprising a polyvinyl alcohol copolymer, wherein the solid hydrogel intervertebral body exhibits an osmotic pressure of from 0.1 to 0.3 megapascals prior to insertion into a patient, the solid hydrogel intervertebral body having a ratio of length to principal transverse dimension not less than about 5:1.
