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Inter-vertebral disc prosthesis for lumbar rachis through posterior surgery thereof

  • US 20030220695A1
  • Filed: 03/26/2003
  • Published: 11/27/2003
  • Est. Priority Date: 09/26/2000
  • Status: Abandoned Application
First Claim
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1. A prosthetic inter-vertebral disc for positioning in an inter-somatic space between a pair of adjacent vertebrae and within a natural annulus fibrosus or a remaining portion thereof, comprising an elongated outer annulus member and an inner nucleus member, said outer annulus member being flexible and being adapted to be introduced into the inter-somatic space through a tenotomy opening and to follow an inside wall of the natural annulus fibrosus such as to form a substantially closed loop therewithin, said loop defining a chamber, said inner nucleus member being adapted to be introduced into the inter-somatic space through the tenotomy opening and within said outer annulus member and being adapted to extend in said chamber peripherally up to said outer annulus member.

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