Dennis G. Crandall,T. Andrew Simonton,Sean M. Haddock
申请号：
US11796757
公开号：
US08864801B2
申请日:
2007.04.30
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A method is disclosed for increasing the stiffness of an intervertebral disc between vertebral bodies. The method includes providing a syringe with a needle approximately in the range of 16 to 25 gauge providing a material having a first stage with a first viscosity adapted to flow through the needle, the material having a second stage with a second viscosity greater than the first viscosity, the second stage material having a stiffness in a range of 1.0-5.0 MPa testing the annulus fibrosus of the disc to ensure that the annulus fibrosus has sufficient continuity so as to retain the first flowable stage material when subsequently injected into the disc inserting the needle into the annulus fibrosus injecting the first stage material into the disc and permitting the first stage material to become the second stage material so as to form a load bearing implant in the disc.
