Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Martin Meer0
Robert Sommerich0
Gerhard Franz Pohl0
Glen Arthur Presbrey0
Date of Patent
August 14, 2012
0Patent Application Number
119606230
Date Filed
December 19, 2007
0Patent Citations Received
0
...
Patent Primary Examiner
Patent abstract
An intervertebral expandable spacer having a pair of co-axial annuluses locked together by an engagement member having i) a set screw and ii) a pressure plate having an outer face contacting the set screw and an inner face having teeth adapted to mate with the ratchet notches of the second member.
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