发明名称 |
Apparatus and method for replacing the nucleus pulposus of an intervertebral disc or for replacing an entire intervertebral disc |
摘要 |
A prosthetic nucleus pulposus for replacing the natural nucleus pulposus of an intervertebral disc. The prosthetic nucleus proposus comprises a partially collapsed sealed envelope formed from a material which is permeable to extracellular body fluid. The envelope contains a solute which provides an osmotic potential across the walls of the envelope. In use, the partially collapsed envelope is surgically implanted in the hallowed-out interior of an intervertebral disc and is allowed to absorb fluid, whereby expansion of the envelope and subsequent disc expansion is accomplished.
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申请公布号 |
US2005085916(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
US20040974662 |
申请日期 |
2004.10.27 |
申请人 |
LI LEHMANN K.;MAGUIRE STEPHEN A.;LEONARD EDWARD F.;CORRAO ERNEST N.JR.;WARD ROBERT S.;COVIELLO SALLIE K. |
发明人 |
LI LEHMANN K.;MAGUIRE STEPHEN A.;LEONARD EDWARD F.;CORRAO ERNEST N.JR.;WARD ROBERT S.;COVIELLO SALLIE K. |
分类号 |
A61L27/00;A61F2/00;A61F2/30;A61F2/44;A61F2/46;(IPC1-7):A61F2/44 |
主分类号 |
A61L27/00 |
代理机构 |
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主权项 |
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地址 |
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