Inflatable intervertebral disc replacement prosthesis

Title: Inflatable intervertebral disc replacement prosthesis

Related Patent Categories: Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor, Implantable Prosthesis, Bone, Spine Bone, Having A Fluid Filled Chamber

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20050267580, Inflatable intervertebral disc replacement prosthesis.

1. An intervertebral disc replacement prosthesis comprising at least one chamber which can be inflated to conform to various intervertebral spaces.

2. The prosthesis of claim 1, comprising a pair of end plates on opposite sides of said chamber, each having a generally convex surface adapted to engage a respective cranial or caudal surface of neighboring vertebrae.

3. The prosthesis of claim 2, wherein each of said end plates has plural projections or corrugations for engaging said surfaces, to prevent movement of the end plates relative to said surfaces.

4. The prosthesis of claim 1, wherein each of said end plates is rigid.

5. An intervertebral disc replacement prosthesis comprising a pair of independently inflatable chambers, each adapted to engage a respective cranial or caudal surface of neighboring vertebrae.

6. The prosthesis of claim 5, wherein each of said inflatable chambers has an end plate adapted to engage a respective cranial or caudal surface of neighboring vertebrae.

7. The prosthesis of claim 5, wherein each of said end plates has plural projections or corrugations for engaging said surfaces, to prevent movement of the end plates relative to said surfaces.

8. The prosthesis of claim 5, wherein said chambers have complementary structures which interengage to provide limited universal movement between said chambers.

9. The prosthesis of claim 6, wherein each of said end plates is formed of at least two parts having hinges therebetween so that the prosthesis can be folded prior to insertion through minimally invasive techniques.

10. The prosthesis of claim 6, wherein each of said chambers has a flexible wall.

11. The prosthesis of claim 10, wherein said wall is made of a polymeric material.

12. The prosthesis of claim 10, wherein said wall is made of a fabric.

13. The prosthesis of claim 12, wherein the fabric is Kevlar.

14. The prosthesis of claim 12, wherein the fabric is not substantially stretchable, and the chamber is made is a shape conforming to the space to be filled.

Brief Patent Description - Full Patent Description - Patent Claims

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Previous Patent Application:
Ratcheted bone dowel having smooth sides and method for use thereof
Next Patent Application:
Intervertebral implant
Industry Class:
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor

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