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Radiolucent spinal fusion cage




Title: Radiolucent spinal fusion cage.
Abstract: An improved bone graft is provided for human implantation, particularly such as a spinal fusion cage for implantation into the inter-vertebral space between two adjacent vertebrae. The improved spinal fusion cage includes a substrate block of high strength biocompatible material having a selected size and shape to fit the anatomical space, and a controlled porosity analogous to natural bone. The substrate block may be coated with a bio-active surface coating material such as hydroxyapatite or a calcium phosphate to promote bone ingrowth and enhanced bone fusion. Upon implantation, the fusion cage provides a spacer element having a desired combination of mechanical strength together with osteoconductivity and osteoinductivity to promote bone ingrowth and fusion, as well as radiolucency for facilitated post-operative monitoring. The fusion cage may additionally carry one or more natural or synthetic therapeutic agents for further promoting bone ingrowth and fusion. ...


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USPTO Applicaton #: #20130030531
Inventors: Darrel S. Brodke, Bret M. Berry, Ashok C. Khandkar, Ramaswamy Lakshminarayanan, Mahendra S. Rao


The Patent Description & Claims data below is from USPTO Patent Application 20130030531, Radiolucent spinal fusion cage.




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Methods and instruments for endoscopic interbody surgical techniques
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Spinal implant and method of use
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Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
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stats Patent Info
Application #
US 20130030531 A1
Publish Date
01/31/2013
Document #
13538559
File Date
06/29/2012
USPTO Class
623 1716
Other USPTO Classes
International Class
61F2/44
Drawings
6


Analogous Bone Graft Calcium Calcium Phosphate Fusion Graft Hydroxyapatite Implant Implantation Phosphate Radiolucent Spinal Fusion Vertebra Vertebrae Adjacent Vertebra Apatite

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Amedica Corporation


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Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor   Implantable Prosthesis   Bone   Spine Bone   Including Spinal Disc Spacer Between Adjacent Spine Bones  

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20130131|20130030531|radiolucent spinal fusion cage|An improved bone graft is provided for human implantation, particularly such as a spinal fusion cage for implantation into the inter-vertebral space between two adjacent vertebrae. The improved spinal fusion cage includes a substrate block of high strength biocompatible material having a selected size and shape to fit the anatomical |Amedica-Corporation
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