The Patent Trial and Appeal Board determined that challenged claims of Stratus Medical LLC’s patent directed to improved systems and methods for performing radio frequency neurotomy are unpatentable as obvious over prior art, in an inter partes review by Avanos Medical Inc. The board said that the challenged claims are obvious over various combinations of prior art, including prior art that discloses an apparatus for pain relief that delivers electrical stimulation pulses or high-frequency signals to the vicinity of a neural structure via an electrical needle or cannula, improved-coverage RF neurotomy instrumentation, and a radio frequency ablation device having a ...
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