Artificial disc spinal surgical prosthesis
First Claim
1. An artificial disc for placement between adjacent vertebrae comprising:
- at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces;
at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and
means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other.
2 Assignments
0 Petitions
Accused Products
Abstract
A spinal surgical prosthesis such as an artificial disc having a pair of upper and lower plate members, a flexible disc interposes therebetween and a rigid collar made of a bio-compatible and bio-resorbable material surrounding the flexible disc between the upper and lower plate members. Prior to the resorption of the collar, the collar serves to provide stability to the flexible disc for enhancing osteo-integration of the prosthesis with adjacent vertebrae. Subsequent to the resorption of the rigid collar, the flexible disc provides flexibility and compressibility while maintaining the proper inter disc space and lordosis or kyphosis between adjacent vertebrae.
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Citations
32 Claims
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1. An artificial disc for placement between adjacent vertebrae comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An artificial disc for placement between adjacent vertebrae comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other; and a substance that promotes osseous integration and bone in-growth adjacent to said plate members.
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29. An artificial disc for placement between adjacent vertebrae comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other; and a substance with hemostatic drug eluting factors to control bleeding adjacent to said plate members.
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30. The combination of an artificial disc and a substance comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other; and a substance with time released anti-microbial factors to control and prevent infection adjacent to said plate members.
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31. An artificial disc for placement between adjacent vertebrae comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other; and a substance with anti-tumor drugs to control or eradicate tumors adjacent to said plate members.
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32. An artificial disc for placement between adjacent vertebrae comprising:
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at least one upper substantially flat plate member and one lower substantially flat plate member, each plate member having corresponding outer and inner bearing surfaces; at least one flexible supporting means interposed between said upper and lower plate members and abutting said corresponding inner bearing surfaces, said flexible support means flexibly and compressibly supporting said upper and lower plate members to allow compression of the adjacent vertebrae; and means for temporarily stabilizing said flexible supporting means for a certain period of time to allow at least two of said outer bearing surfaces to osteo-integrate with the adjacent vertebrae, wherein said temporarily stabilizing means is spaced from said upper or lower substantially flat plate members to allow limited tilting of said upper and lower substantially flat plate members with respect to each other; and a substance with pain-controlling factors to control pain adjacent to said plate members.
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Specification