Composite Bone Grafts and Methods for Producing the Same
AssigneeDCI Donor Services, Inc.
InventorDavid Ayres Bowden SMITH
Life of this patent
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Abstract
The present disclosure is directed to composite bone grafts and to methods for providing such grafts for orthopedic and other surgical uses in a subject in need thereof. In some embodiments, the present disclosure provides a method for producing a composite bone graft, the method comprising, for example, the steps of: (i) selecting at least one donor site on at least one subject; (ii) removing at least one piece of bone, comprising cortical bone, from the at least one donor site; (iii) machining the at least one piece of bone to produce at least two bone components, each having a surface comprising at least one of a protuberance and a recess thereon; and (iv) joining the at least two machined bone components to produce a composite bone graft.
Claims33
An implant, comprising:
- a body comprising at least a top piece and a bottom piece that have mating interlocking surfaces that couple the pieces together as one piece, the body comprising a front side, back side, top side, bottom side, anterior side, posterior side, and a length extending from the anterior side to the posterior side;
- the top piece and the bottom piece each having a superior/upper surface and an inferior/lower surface, wherein at least a portion of the inferior surface of the top piece engages with the superior surface of the bottom piece when the top piece and the bottom piece are coupled together;
- the top piece and the bottom piece each comprising at least two protuberances and recesses that are complimentary to the protuberances from a second piece such that the protuberances can be received by the recesses;
- said protuberances comprising radii along its height and said recesses comprising radii along its depth;
- wherein at least part of the top piece inferior surface and at least part of the bottom piece superior surface comprises ridges that form channels across the respective surfaces, the channels providing intermittent distances between the respective surfaces.
An implant, comprising:
- a body comprising at least a first top piece, at least one second top piece/middle piece, and a bottom piece that have mating interlocking surfaces that couple the pieces together as one piece, the body comprising a front side, back side, top side, bottom side, anterior side, posterior side, and a length extending from the anterior side to the posterior side;
- the first top piece, second top piece, and the bottom piece each having a superior/upper surface and an inferior/lower surface, wherein at least a portion of the inferior surface of the top piece engages with a portion of the superior surface of the second top piece, and at least a portion of the inferior portion of one of the at least one second top piece engages with at least a portion of the superior surface of the bottom piece when pieces are coupled together;
- the top piece comprising at least two recesses;
- the second top piece comprising at least two protuberances on the superior surface that correspond with and are received by complimentary recesses of the top piece when engaged with the top piece, and at least two protuberances on the inferior surface;
- the bottom piece comprising at least two corresponding recesses that are complimentary to and receive the protuberances from a second top piece when engaged;
- said protuberances comprising radii along its height and said recesses comprising radii along its depth;
- wherein at least part of the surfaces comprising protuberances comprise ridges that form channels across the respective surfaces, the channels providing intermittent distances between the respective surfaces when engaged.
Dependencies are inferred from the claim text.