The Patent Trial and Appeal Board held that challenged claims of Stratus Medical LLC’s patent directed to systems and methods for 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, improved-coverage RF neurotomy instrumentation including an introducer used to deploy a set of electrodes to an area to be treated, and a radio frequency ablation device having ...
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