Demineralized bone implants
AssigneeSynthes USA, LLC
InventorsMichael L. Boyer II, David C. Paul, Christopher M. Angelucci
Life of this patent
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Abstract
Selectively demineralized bone-derived implants are provided. In one embodiment, a bone sheet for implantation includes a demineralized field surrounding mineralized regions. In another embodiment, a bone defect filler includes a demineralized cancellous bone section in a first geometry. The first geometry is compressible and dryable to a second geometry smaller than the first geometry, and the second geometry is expandable and rehydratable to a third geometry larger than the second geometry.
Claims31
A method of providing a bone implant comprising:
- demineralizing a cancellous bone section having a first geometry;
- compressing the bone section from the first geometry to a second geometry smaller than the first geometry;
- drying the bone section while the bone section has approximately the second geometry;
- and
- inserting the bone section into a space.
A method of maintaining a distance between vertebral bodies comprising:
- demineralizing a bone section having a first geometry;
- drying the bone section;
- inserting the bone section in between vertebral bodies;
- and
- expanding the bone section to a second geometry.
A method of replacing nucleus of a vertebral disc comprising:
- providing a demineralized cortical bone section having a first geometry;
- inserting the bone section in between vertebral bodies;
- and
- expanding the bone section to a second geometry.
An implant comprising demineralized cancellous bone capable of being softened and compressed into a smaller first shape and hardened in said first shape, and capable of expanding into a second shape larger than said first shape when resoftened and permitted to expand.
Dependencies are inferred from the claim text.