Myoscience has won FDA clearance for its iovera cryoneurolysis system to be used for symptom and pain relief in the knees arising from osteoarthritis. The company’s so-called Focused Cold Therapy delivery system pumps pressurised liquid nitrous oxide (N2O) to the treatment tip, where it is made to turn to a gas and become very cold. The phase change happens in tight location, creating a small and precise treatment area that can be used to c...