发明名称 |
Prosthetic spinal disc nucleus with elevated swelling rate |
摘要 |
A method of manufacturing a prosthetic spinal disc nucleus. The including forming a hydrogel core from a hydrogel material in a natural state. The hydrogel material in the natural state is characterized by a natural swelling rate. The hydrogel is treated in an alkaline solution having a pH of at least about 8. This treatment transitions the hydrogel core from the natural state to a treated state characterized by an elevated swelling rate. The elevated swelling rate is greater that the natural swelling rate. The resultant, treated hydrogel core forms at least a portion of a prosthetic spinal disc nucleus that is otherwise sized for insertion into a spinal disc nucleus cavity. In one particular embodiment, the hydrogel core is inserted into a constraining jacket. Another aspect of the present invention relates to a prosthetic spinal disc nucleus including a hydrogel core having the elevated swelling rate.
|
申请公布号 |
US2006237877(A1) |
申请公布日期 |
2006.10.26 |
申请号 |
US20060472741 |
申请日期 |
2006.06.22 |
申请人 |
RAYMEDICA, INC. |
发明人 |
BAIN ALLISON C.;SHERMAN TARA N.;NORTON BRITT K. |
分类号 |
B29C71/00;A61F2/30;A61F2/44;A61L27/52 |
主分类号 |
B29C71/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|