The co-founders of NeuroSonics have developed a tool for minimally invasive ablation of brain tumors - an ultrasound (FUS) device designed to offer a minimally invasive alternative to cranial flap resections to remove large and complex brain tumors, including cases considered inoperable with current surgical techniques. Current methodologies - cranial flap resections - involve removing a large portion of the skull. This highly invasive approach can increased risk of uncontrolled bleeding and infections, and requires prolonged post-operative recovery. Reducing invasiveness with a smaller incision c/would mitigate these risks, which is especially important when removing tumors that are deep in the brain. The NeuroSonics team built and tested a prototype in 2018, which confirmed functionality and Neurosonic Medical was formed to address key technical hurdles: design, fabrication and testing of a miniaturized version of an earlier prototype while maintaining its acoustic performance.