Founded in 1976, SOPHYSA is a French company pioneer in the development of adjustable neurosurgical valves, the most advanced type of valves for the treatment of Hydrocephalus. Indeed, they offer the possibility to neurosurgeons to adjust the operating pressure non-invasively depending on patient's clinical needs. Two adjustable valves are produced by SOPHYSA: the Sophy® Mini valve, which was the first adjustable valve in the world, launched in 1985, and the Polaris® valve, the first MRI-stable adjustable valve. In addition to a complete range of neurosurgical implants, SOPHYSA offers a continuous intracranial pressure measurement system required for patients with a trauma brain injury, hydrocephalus, and hematoma. Pressio® ICP monitoring system is a user-friendly monitor with its range of catheters for intracranial pressure and temperature measurements.