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US 2008/0077242 A1Published application
Prosthetic intervertebral discs having compressible core elements bounded by fiber-containing membranes
AssigneeSpinal Kinetics, Inc.
InventorsMichael L. Reo, Elizabeth V. Wistrom, Frank Fellenz, Thomas A. Afzal
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Abstract
This description deals with a medical device, specifically a prosthetic intervertebral disc having a compressible core bounded by a fiber-containing or fiber-reinforced membrane.
Claims20
A prosthetic intervertebral disc comprising:
- i.) top end and bottom end plates separated by a compressible element,
- ii.) the compressible element separating the top and bottom end plates comprising at least one polymeric material and bounded between the end plates by at least one fiber-containing membrane fixedly attached to the top end plate and the bottom end plate, and
- iii.) said at least one fiber-containing membrane fixedly attached to the top end plate and the bottom end plate.
A prosthetic intervertebral disc comprising:
- i.) a top end plate comprising a top outer plate and a top inner plate,
- ii.) a bottom end plate comprising a bottom outer plate and a bottom inner plate,
- iii.) a compressible element separating the top and bottom end plates comprising at least one polymeric silicone hydrogel material and bounded between the end plates by at least one tubular fiber-containing membrane having an upper membrane end and a lower membrane end, and
- iii.) said at least one fiber-containing membrane, where the upper membrane end is fixedly attached to the top end plate by compression between the top outer plate and the top inner plate and where the lower membrane end is fixedly attached to the bottom end plate by compression between the bottom outer plate and the bottom inner plate.
1 more element
A fillable prosthetic intervertebral disc comprising:
- i.) top end and bottom end plates separated by a compressible element volume bounded between the end plates by at least one fiber-containing membrane fixedly attached to the top end plate and the bottom end plate, and
- ii.) said at least one fiber-containing membrane fixedly attached to the top end plate and the bottom end plate.
Dependencies are inferred from the claim text.