Intervertebral implant, process for widening and instruments for implanting an intervertebral implant
First Claim
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1. An intravertebral implant, comprising:
- a body having an opening provided with an interior thread;
an expansion element in the form of a screw which is screwed into said opening in engagement with said interior thread, said screw having a leading end, wherein said body has two opposed expandable areas provided with fixation elements to fix the implant to vertebral bodies, said expandable areas each having a connected end and a free end, such that said expandable areas are connected to each other at their connected ends while their free ends are expandable by said leading end of said expansion element.
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Abstract
The present invention relates to an adjustable-height intravertebral implant, having an approximately cylindrical hollow body which has one or more openings (59, 59′, 60, 60′) and which is variably expandable by adjusting elements, and which has fixation elements for fixing it to vertebral bodies. The present invention also relates to a method for expanding this intravertebral implant as well as to instruments for performing the method.
764 Citations
15 Claims
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1. An intravertebral implant, comprising:
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a body having an opening provided with an interior thread;
an expansion element in the form of a screw which is screwed into said opening in engagement with said interior thread, said screw having a leading end, wherein said body has two opposed expandable areas provided with fixation elements to fix the implant to vertebral bodies, said expandable areas each having a connected end and a free end, such that said expandable areas are connected to each other at their connected ends while their free ends are expandable by said leading end of said expansion element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification
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Current AssigneeSpinal Implant Innovations, LLC (Empire IP LLC)
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Original AssigneeBernhard Zientek
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InventorsZientek, Bernhard
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Primary Examiner(s)Isabella, David J.
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Assistant Examiner(s)STEWART, ALVIN J
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Application NumberUS09/011,068Time in Patent Office964 DaysField of Search623/17, 623/17.16, 623/17.15, 623/17.14, 623/17.13, 623/17.12, 623/17.11US Class Current623/17.11CPC Class CodesA61B 17/2909 HandlesA61B 2017/2845 with a spring pushing the h...A61B 2017/2901 Details of shaftA61B 2017/2911 ringsA61B 2017/2927 the angular position of the...A61B 2017/2939 Details of linkages or pivo...A61B 2090/061 for measuring dimensions, e...A61B 90/06 Measuring instruments not o...A61F 2/442 Intervertebral or spinal di...A61F 2/4455 for the fusion of spinal bo...A61F 2/4603 for insertion or extraction...A61F 2/4611 of spinal prosthesesA61F 2/4657 Measuring instruments used ...A61F 2002/30131 horseshoe- or crescent- or ...A61F 2002/30143 hexagonalA61F 2002/30153 rectangularA61F 2002/3037 Translation along the commo...A61F 2002/30405 made by screwing complement...A61F 2002/30507 using a threaded locking me...A61F 2002/30518 with possibility of relativ...View All
