Bioabsorbable implant combined with tissue-engineered composite intervertebral disc
AssigneeCornell University
InventorsRoger Hartl, Lawrence Bonassar, Yu Moriguchi, Gernot Lang, Rodrigo Navarro-Ramirez
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Abstract
The present disclosure describes an intervertebral disk replacement system. The system can include a tissue-engineered intervertebral disc that is combined with a bioresorbable stabilization system for structural guidance. The system can prevent or reduce intervertebral disk implant displacement and can increase the stiffness when compared to the implantation of the intervertebral disk implant without the stabilization system.
Claims23
An intervertebral stabilization system, comprising:
- a tissue-engineered intervertebral disc configured to fit within an intervertebral space between a first vertebra and a second vertebra;
- a bioresorbable plate, comprising a plurality of openings, to secure the tissue-engineered intervertebral disc between the first vertebra and the second vertebra, wherein the bioresorbable plate is configured to couple with the first vertebra and the second vertebra via at least some of the plurality of openings;
- and
- a plurality of bioresorbable screws to secure the bioresorbable plate to the first vertebra and the second vertebra via the at least some of the plurality of openings, wherein the plurality of bioresorbable screws are configured to degrade at a slower rate or over a longer period of time relative to the bioresorbable plate.
An intervertebral stabilization method, comprising:
- obtaining a bio-resorbable stabilization system comprising a tissue-engineered intervertebral disc configured to fit within an intervertebral space between a first vertebra and a second vertebra;
- implanting the tissue-engineered intervertebral disc between the first vertebra and the second vertebra;
- and
- securing, with a bioresorbable plate and a plurality of bioresorbable screws, the tissue-engineered intervertebral disc between the first vertebra and the second vertebra, wherein the bioresorbable plate comprises a plurality of openings configured to receive the plurality of bioresorbable screws to couple the bioresorbable plate with the first vertebra and the second vertebra, and wherein the plurality of bioresorbable screws are configured to degrade at a slower rate or over a longer period of time relative to the bioresorbable plate.
An intervertebral stabilization kit, comprising:
- a tissue-engineered intervertebral disc configured to fit within an intervertebral space between a first vertebra and a second vertebra;
- a bioresorbable plate to secure the tissue-engineered intervertebral disc between the first vertebra and the second vertebra, wherein the bioresorbable plate comprises a plurality of openings;
- and
- a plurality of bioresorbable screws configured to be received in the plurality of openings and thereby to secure the bioresorbable plate with the first vertebra and the second vertebra, wherein the plurality of bioresorbable screws are configured to degrade at a slower rate or over a longer period of time relative to the bioresorbable plate.
Dependencies are inferred from the claim text.