Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Christopher L. Ramsay0
Paul Maguire0
Jörn Richter0
John C. Voellmicke0
Date of Patent
January 24, 2023
0Patent Application Number
163526540
Date Filed
March 13, 2019
0Patent Citations
Patent Citations Received
Patent Primary Examiner
CPC Code
An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.
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